From trm at eskimo.com Mon Jul 10 13:02:00 2006 From: trm at eskimo.com (trm at eskimo.com) Date: Mon, 10 Jul 2006 13:02:00 -0700 (PDT) Subject: suggestions of Helpdesk software, request tracking - public domain or low cost Message-ID: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> I am seeking suggestions of Low cost or public domain Helpdesk software which is web based and also sends out email messages was needed. Examples would be: - troubleticketexpress.com - perldesk.com Please provide suggestions, and some features you like about the Helpdesk software. Please do not provide critics of other persons suggestions. Thanks! Tim Mitchell Unix System Administrator trm at eskimo.com From sigje at sigje.org Mon Jul 10 13:35:01 2006 From: sigje at sigje.org (Jennifer Davis) Date: Mon, 10 Jul 2006 13:35:01 -0700 (PDT) Subject: ACCU meeting on Wednesday (fwd) Message-ID: Peter Theoeny to talk at the ACCU meeting on Wednesday. Please do RSVP with Walter if you plan on going. If he has a large crowd I may be able to help him find an alternate location! Jennifer ---------- Forwarded message ---------- Date: Mon, 10 Jul 2006 10:14:32 -0700 From: Walter Vannini To: SVLUG Subject: [svlug] ACCU meeting on Wednesday When: Wednesday, July 12, 2006 Topic: Wiki Collaboration and Wiki Applications in the Workplace Speaker: Peter Thoeny Time: 7:00pm Where: eBay Town Hall (next to PayPal/eBay) 2161 North First St San Jose, CA 95131 Map: Cost: Free More Info: A wiki is a website where anyone with a browser can create and maintain web pages. It enables teams to organize and share content and knowledge in an organic and free manner, and to schedule, manage and document their daily activities. A wiki can also be used as an intranet where employees contribute content collaboratively, replacing a webmaster maintained intranet. This talk explains what wikis are and how they are used, covers social aspects and security concerns, and teaches how to roll out a wiki. It also explains how teams can use TWiki, an open-source wiki for the enterprise, to build tailored wiki applications supporting their workflow and processes. Attendees will learn what wikis are and how they can be applied to the enterprise; the wiki culture and ways of collaboration it offers; how to successfully roll out a wiki; and how wiki applications can support business processes. Peter Thoeny is the founder of TWiki , the leading Wiki for corporate collaboration and knowledge management. Managing the open-sourced project for the last seven years, Peter invented the concept of structured wikis - where free form wiki content can be structured with tailored wiki applications. He is a recognized thought-leader in Wikis and social software, featured in numerous articles and technology conferences including LinuxWorld, Business Week, Wall Street Journal and more. A software developer with over 15 years experience, Peter specializes in software architecture, user interface design and web technology. He graduated from the Swiss Federal Institute of Technology in Zurich, lived in Japan for 8 years working as an engineering manager for Denso building CASE tools, and managed the Knowledge Engineering group at Wind River for several years. He is currently working on a book on wikis for the workplace. Peter recently co-founded StructuredWikis LLC , a company offering services that allows teams to use wikis to improve productivity and communication through basic and advanced application of wikis. Upcoming ACCU talks August 9, 2006 Elisabeth Hendrickson "Testing Web 2.0" September 13, 2006 Matt Doar "Common Problems with Bug Trackers" October 11, 2006 Joe Darcy "What Every Computer Programmer Should Know About Floating-Point Arithmetic" The ACCU meets monthly. To suggest topics and speakers please email Walter Vannini via walterv at gbbservices.com Walter Vannini President, Silicon Valley ACCU _______________________________________________ svlug mailing list svlug at lists.svlug.org http://lists.svlug.org/lists/listinfo/svlug !DSPAM:44b28b1c29121038666802! From iennae at gmail.com Mon Jul 10 13:38:38 2006 From: iennae at gmail.com (Jennifer Davis) Date: Mon, 10 Jul 2006 13:38:38 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> Message-ID: Hey Tim, I use RT at work. You can get some custom help from the developers at a cost, or roll it out on your own. It requires some fun with installation, but in general once you have it running it's lovely. It has a lot of capabilities, and I'm still swimming around in the options figuring out what works best for us. I think having a good understanding of your process flow, and defining it to the end user as well as expectations of what they will see are a must before deploying any solution. Is it just for you, or for a number of users? (to work on tickets) What kind of interfaces are you looking for? RT has scrips which you can automate tasks happening upon events. I too would love to hear what people have to say about ticketing, and the processes they have gone to implement a good informative flow. Jennifer On 7/10/06, trm at eskimo.com wrote: > > I am seeking suggestions of Low cost or public domain Helpdesk software > which is web based and also sends out email messages was needed. > > Examples would be: > - troubleticketexpress.com > - perldesk.com > > > Please provide suggestions, and some features you like about the > Helpdesk software. Please do not provide critics of other persons > suggestions. > > Thanks! > > Tim Mitchell > Unix System Administrator > trm at eskimo.com > > -- Jennifer Davis From ramin-list at badapple.net Mon Jul 10 13:39:23 2006 From: ramin-list at badapple.net (Ramin K) Date: Mon, 10 Jul 2006 13:39:23 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> Message-ID: <44B2BAFB.8050904@badapple.net> trm at eskimo.com wrote: > I am seeking suggestions of Low cost or public domain Helpdesk software > which is web based and also sends out email messages was needed. > > Examples would be: > - troubleticketexpress.com > - perldesk.com > > > Please provide suggestions, and some features you like about the > Helpdesk software. Please do not provide critics of other persons > suggestions. Request Tracker, aka RT3 http://bestpractical.com/ Pros: Actually works in the manner you might expect out of the box so to speak. Configurable with multiple queues, access level, privileges. System can accept email tickets, email responses update ticket, sends reminders, etc. Apache1/2, mod_perl1/2, Mysql/Postgres/Oracle supported as well. Also supports fastcgi so you use other web servers if you're inclined. Under active development, 3.6 was releases last month, and has been around for ten years. Pay for support available and there is an O'Rielly book. Cons: concurrency sucks, wouldn't use with more than 15-20 users. Needs 80+ perl modules so plan on cpan-ing your server. Perl dependencies can be brittle as I've broken parts of it a time or two when updating modules for something else. DBAs have bitched about RT's schema and indexes which is probably why concurrency sucks. HTML/CSS has to be edited manually. Access control is powerful and makes no sense the first five times. I only have experience with 3.4 (Linux, Apache2, mod_perl2, mysql5) and haven't tried the new 3.6 which is supposed to address a number of the shortcomings I mentioned. Overall RT works better than most of the alternatives IMHO though it is not without its warts. Ramin From extasia at extasia.org Mon Jul 10 13:57:52 2006 From: extasia at extasia.org (David Alban) Date: Mon, 10 Jul 2006 13:57:52 -0700 Subject: [baylisa] ACCU meeting on Wednesday (fwd) In-Reply-To: References: Message-ID: <4c714a9c0607101357g6b350e7by991b758ee1a22036@mail.gmail.com> FYI, after about fifteen minutes of surfing, beginning at , I finally found a web page indicating for what ACCU stands, which is: Association of C and C++ Users On 7/10/06, Jennifer Davis wrote: > Peter Theoeny to talk at the ACCU meeting on Wednesday. Please do RSVP > with Walter if you plan on going. If he has a large crowd I may be able > to help him find an alternate location! -- Live in a world of your own, but always welcome visitors. From sigje at sigje.org Mon Jul 10 13:58:07 2006 From: sigje at sigje.org (Jennifer Davis) Date: Mon, 10 Jul 2006 13:58:07 -0700 (PDT) Subject: Networking Event - July 13, 2006 Message-ID: When: Thursday, July 13, 2006 Time: 7:00pm - 10:00pm Where: Yahoo Inc! room C5 701 First Avenue Sunnyvale, CA Directions: http://yhoo.client.shareholder.com/press/address.cfm RSVP: http://www.mollyguard.com/event/30432023 or rsvp at baylisa.org COST: FREE Are you looking for a job? Interested in finding someone for a job? Curious about what other sys admins are currently working on? Come out to the first BayLISA networking event! There will be networking, and sharing of ideas, and a quiz show for those interested in proving their Sys Admin smarts! Kudos and prizes to be announced. BayLISA will be sponsoring the food and drinks.. you just bring your business cards, and if applicable your resume (Please bring a few copies.) Don't forget to RSVP! From iennae at gmail.com Mon Jul 10 14:05:39 2006 From: iennae at gmail.com (Jennifer Davis) Date: Mon, 10 Jul 2006 14:05:39 -0700 Subject: upcoming job fair Message-ID: Upcoming Job Fair if you are interested: > WHAT: Bay Area Technical Job Fair and San Francisco Diversity Job > Fair > > WHERE: Hyatt Regency San Francisco, 5 Embarcadero Center > > WHEN: Wednesday, July 19, 2006, 11 a.m. to 3 p.m. > > > > Looking for a new job? Stop by the Hyatt Regency San Francisco at 5 > Embarcadero Center on Wednesday, July 19 from 11 a.m. to 3 p.m. Top > employers will be recruiting for hundreds of positions at both the Bay Area > Technical Job Fair and the San Francisco Diversity Job Fair. Bring plenty > of resumes, dress in business attire and be prepared to interview > on-the-spot. For more information, call 1-888-THE-JOBS or visit > jobjournal.com today. > > > > -- Jennifer Davis From marie at mmwi.com Mon Jul 10 14:37:24 2006 From: marie at mmwi.com (Marie E. Minder) Date: Mon, 10 Jul 2006 14:37:24 -0700 Subject: Job - Linux Admin in Sunnyvale Message-ID: <00c901c6a469$08c2e6f0$6b64a8c0@corp.mmwi.com> Are you seeking a high level position where you are responsible for the lifeblood of an organization? If so then we want to talk to you. We are a mobile technology company based in the south bay area (Sunnyvale) seeking a Linux Administrator to keep all of our servers up and running. This is a critical position for us because it directly affects our products and services to the customer. Ideally a candidate will have... - a broad range of technologies, but a focus on Linux - many years experience as a Linux Administrator - Bachelor's degree - excellent communication skills Marie E. Minder President MMW International Marie at mmwi.com 925-838-9163 925-215-2429 (f) From hmbjuggler at yahoo.com Mon Jul 10 20:28:52 2006 From: hmbjuggler at yahoo.com (greg edwards) Date: Mon, 10 Jul 2006 20:28:52 -0700 (PDT) Subject: meeting of possible interest-datamining the net for threats In-Reply-To: Message-ID: <20060711032852.26905.qmail@web34715.mail.mud.yahoo.com> SF Bay ACM Data Mining SIG Business Environment Monitoring: Exploiting the Net to Help Management Systematically Identify External Threats and Opportunities Presented by Alex Kass, Senior Research Manager, Accenture Labs Date: Wednesday, 12 July 2006, 6:30 PM Location: SAP LABS, Building D, 3410 Hillview Avenue, Palo Alto, CA Cost: Free and open to all who wish to attend, but membership is only $10/year. Topic Enterprise business intelligence systems are providing decision-makers with increasingly rich dashboards to help them understand what is going on inside their organization, but many executives wish that they had a more systematic means of using technology to help them identify, as early as possible, the external events that represent potential threats or opportunities to their companies. The vast streams of data constantly being broadcast in various forms on the Internet contain many weak signals that could provide this type of insight. However, the potential of the Internet as a source for outward-looking BI, or corporate radar, is still largely untapped, because executives do not yet have the kinds of tools they need to systematically exploit it. In this presentation I'll present a prototype we've developed to fill this need. The system is called the Business Event Advisor. It includes tools to allow business analysts to create models of the entities, relationships and event types comprising a particular organization's competitive ecosystem, and a run-time processing engine that uses those models to drive the automatic detection and interpretation of events relevant to that organization's business. By combining various text-processing technologies with model-driven inference, the system mines the Net to detect business-relevant events and provide the early warning that can help act quickly to seize an opportunity or defend against an emerging threat. About the Speaker Alex Kass, is a Senior Research Manager at Accenture Technology Labs in Palo Alto, where he works to help the company anticipate technologies that will be important to the future of Accenture and its clients, and to invent prototypes that integrate these emerging technologies in new ways. Dr. Kass received his Ph.D. in computer science, with an emphasis on artificial intelligence, in 1990. Before joining Accenture in 2004 he held a number of positions in both academia and industry: Research Professor and Associate Director of the Institute for the Learning Sciences at Northwestern University; Executive Vice President of Cognitive Arts Corporation; and Senior Systems Scientist at Carnegie Mellon University. At Accenture Technology Labs, his work has included a project aimed at extending business intelligence capabilities; a project that explores new applications for PDA's as mobile sensor platforms; and new approaches to simulation-based training of business skills. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com From guy at extragalactic.net Tue Jul 11 09:42:14 2006 From: guy at extragalactic.net (Guy B. Purcell) Date: Tue, 11 Jul 2006 09:42:14 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> Message-ID: <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> On Jul 10, 2006, at 1:02 PM, trm at eskimo.com wrote: > > I am seeking suggestions of Low cost or public domain Helpdesk > software > which is web based and also sends out email messages was needed. > > Examples would be: > - troubleticketexpress.com > - perldesk.com I've used a few: * RT--not much to add beyond what Jennifer & Ramin have said; I really like it, but I think it has outgrown Perl * Remedy's ARS--this is the engine beneath Remedy's own helpdesk app; it's not cheap, but it has several nice features (my favorite was the ability to put tickets "on the back burner" for a time & have 'em automatically "reactivate" when that time had lapsed--really nice for when, say, a customer says they'll get back to you within X days); and their actual helpdesk app is very expensive * Double-choco-latte--dumb name; easy to install (it's PHP); a bit more than simple helpdesk, but it works fine for just that; I didn't use this much, so don't have a strong opinion * My previous employer purchased Remedy Magic Service Desk (different product entirely than their ARS/HelpDesk), but it never got installed before I left (from talking with the guy doing the install, it seemed way too integrated with Windows/AD for my comfort) -Guy From pcubbage at opencountry.com Tue Jul 11 10:12:39 2006 From: pcubbage at opencountry.com (Paul Cubbage) Date: Tue, 11 Jul 2006 10:12:39 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> Message-ID: <44B3DC07.6070202@opencountry.com> Take a look at sugarcrm.com & .org It's open and has a company behind it if you want to buy training, support or customization. It's a lot and may be more than you want but if you have plans to do more down the road, it could be a good bet. Works with windoze. I haven't used it so this is just an opinion and your mileage may vary. Guy B. Purcell wrote: > > On Jul 10, 2006, at 1:02 PM, trm at eskimo.com wrote: > >> >> I am seeking suggestions of Low cost or public domain Helpdesk >> software >> which is web based and also sends out email messages was needed. >> >> Examples would be: >> - troubleticketexpress.com >> - perldesk.com > > > I've used a few: > > * RT--not much to add beyond what Jennifer & Ramin have said; I really > like it, but I think it has outgrown Perl > > * Remedy's ARS--this is the engine beneath Remedy's own helpdesk app; > it's not cheap, but it has several nice features (my favorite was the > ability to put tickets "on the back burner" for a time & have 'em > automatically "reactivate" when that time had lapsed--really nice for > when, say, a customer says they'll get back to you within X days); and > their actual helpdesk app is very expensive > > * Double-choco-latte--dumb name; easy to install (it's PHP); a bit more > than simple helpdesk, but it works fine for just that; I didn't use > this much, so don't have a strong opinion > > * My previous employer purchased Remedy Magic Service Desk (different > product entirely than their ARS/HelpDesk), but it never got installed > before I left (from talking with the guy doing the install, it seemed > way too integrated with Windows/AD for my comfort) > > -Guy > > > > From jxh at jxh.com Tue Jul 11 11:35:17 2006 From: jxh at jxh.com (Jim Hickstein) Date: Tue, 11 Jul 2006 13:35:17 -0500 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> Message-ID: <44B3EF65.4070602@jxh.com> Guy B. Purcell wrote: > * Remedy's ARS--this is the engine beneath Remedy's own helpdesk app; > it's not cheap, but it has several nice features (my favorite was the > ability to put tickets "on the back burner" for a time & have 'em > automatically "reactivate" when that time had lapsed--really nice for > when, say, a customer says they'll get back to you within X days); and > their actual helpdesk app is very expensive Actually, _I_ added that, and called it "freeze until" -- very useful for things like "expect a package on $date" or "call this guy back if he doesn't call by $date". For such tickets there is nothing more to do but wait (just not forever), so it might as well vanish from the "to do" list for a while. I miss this feature a lot. It did use an underlying Remedy ARS feature that could notice the passage of time and do things. ARS was a serious chunk of change, and it's still only a substrate: You will still spend several months customizing it. But you end up much further along than if you wrote something from scratch for those same months. I was a fairly happy customer. This was in about 1995-97. Since then my money doesn't run to ARS and I'm using RT. Sadly, it lacks reporting[1], its "Scrips" engine is not _quite_ easy enough to figure out (I tried, and timed out), and the basic priority scheme needs far too much work to be realistic. (If the top-priority thing in your queue is not what you end up working on, ask yourself, Why not?) Not only do I not have the money this time, I don't have three months to give to the customization of things like that. [1] RT, like many of these things, suffers from possibly the worst idea the 20th century gave us, namely Self-service, or, make the customer do all the work. If it's mathematically possible for the customer to extend the product, no matter the effort required, then the engineers don't feel the need to build in even sensible starting points. Reporting? Why, it's all sitting there in MySQL! From rflii at speakeasy.net Tue Jul 11 14:19:42 2006 From: rflii at speakeasy.net (Ron Leedy) Date: Tue, 11 Jul 2006 14:19:42 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> Message-ID: <003d01c6a52f$ba7d2f10$cf0ba8c0@rflii.net> Another inexpensive HelpDesk is from www.innovate.com. They also have a defect tracking, and change management software that integrates. They have both a subscription and premise pricing structure. -Ron Leedy -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.1.394 / Virus Database: 268.9.10/385 - Release Date: 7/11/2006 From ahorn at deorth.org Tue Jul 11 14:26:55 2006 From: ahorn at deorth.org (Alan Horn) Date: Tue, 11 Jul 2006 14:26:55 -0700 (PDT) Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <44B3EF65.4070602@jxh.com> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> <44B3EF65.4070602@jxh.com> Message-ID: > Since then my money doesn't run to ARS and I'm using RT. Sadly, it lacks > reporting[1], its "Scrips" engine is not _quite_ easy enough to figure out (I > tried, and timed out), and the basic priority scheme needs far too much work > to be realistic. (If the top-priority thing in your queue is not what you end > up working on, ask yourself, Why not?) Not only do I not have the money this > time, I don't have three months to give to the customization of things like > that. Maybe this has been mentioned, but engaging bestpractical to do customizations for you is probabaly fairly reasonable in terms of cost. Cheers, Al From ramin-list at badapple.net Tue Jul 11 14:44:34 2006 From: ramin-list at badapple.net (Ramin K) Date: Tue, 11 Jul 2006 14:44:34 -0700 Subject: suggestions of Helpdesk software, request tracking - public domain or low cost In-Reply-To: <44B3DC07.6070202@opencountry.com> References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> <44B3DC07.6070202@opencountry.com> Message-ID: <44B41BC2.8010901@badapple.net> Paul Cubbage wrote: > Take a look at sugarcrm.com & .org It's open and has a company behind > it if you want to buy training, support or customization. It's a lot > and may be more than you want but if you have plans to do more down the > road, it could be a good bet. Works with windoze. > > I haven't used it so this is just an opinion and your mileage may vary. The bizdev guys swear by SugarCRM and convinced me to get the Sugar Outlook plugin for them so things can move easily from Exchange to Sugar and vice versa. I'm not sure how well Sugar would work as a general purpose help desk depending on how anyone actually defines what a help desk is. It has some ticket and bug tracking features, but nothing on the scale of RT or Bugzilla from my quick run through it a few months ago. If your requirements are very light on the help desk functions and you need more of the portal/contact stuff, Sugar might not be a bad way to go. Installed on Apache2, Mysql5, and PHP4 on Linux in our case. SugarCRM 4.2 was not happy with PHP 5.1 which broke it in odd and confounding ways, but I expect the next minor version or 4.5 to fix that. Otherwise it's been easy to support, backup, and move between machines while we did hardware updates. Ramin, starting to think that he supports entirely too many web apps. From pcubbage at opencountry.com Tue Jul 11 15:17:42 2006 From: pcubbage at opencountry.com (Paul Cubbage) Date: Tue, 11 Jul 2006 15:17:42 -0700 Subject: Reports for Helpdesk software, request tracking - public domain or low cost In-Reply-To: References: <35789.167.4.1.39.1152561720.squirrel@167.4.1.39> <962CE24E-5638-4840-9DCC-1F836B383D04@extragalactic.net> <44B3EF65.4070602@jxh.com> Message-ID: <44B42386.50003@opencountry.com> iReports, a nice GUI front end to JasperReports makes report writing a lot simpler. It's a lot like an old 4GL report writer (that's a good thing). Alan Horn wrote: > >> Since then my money doesn't run to ARS and I'm using RT. Sadly, it >> lacks reporting[1], its "Scrips" engine is not _quite_ easy enough to >> figure out (I tried, and timed out), and the basic priority scheme >> needs far too much work to be realistic. (If the top-priority thing >> in your queue is not what you end up working on, ask yourself, Why >> not?) Not only do I not have the money this time, I don't have three >> months to give to the customization of things like that. > > > Maybe this has been mentioned, but engaging bestpractical to do > customizations for you is probabaly fairly reasonable in terms of cost. > > Cheers, > > Al > > From rob.markovic at gmail.com Tue Jul 11 15:52:00 2006 From: rob.markovic at gmail.com (Robi) Date: Tue, 11 Jul 2006 15:52:00 -0700 Subject: 4D devs? Message-ID: <97a9d8c80607111552x7b62a127i226f41af632e6177@mail.gmail.com> Does anyone know of a source of 4th develeopers? 4D aka 4th Dimension is the platform. It's a rapid app/db IDE environment. Runs on Mac/PC/Linux.. -- Rob From deirdre at deirdre.net Tue Jul 11 16:16:53 2006 From: deirdre at deirdre.net (Deirdre Saoirse Moen) Date: Tue, 11 Jul 2006 16:16:53 -0700 (PDT) Subject: 4D devs? In-Reply-To: <97a9d8c80607111552x7b62a127i226f41af632e6177@mail.gmail.com> References: <97a9d8c80607111552x7b62a127i226f41af632e6177@mail.gmail.com> Message-ID: On Tue, 11 Jul 2006, Robi wrote: > Does anyone know of a source of 4th develeopers? 4D aka 4th Dimension > is the platform. > It's a rapid app/db IDE environment. Runs on Mac/PC/Linux.. Only if you time travel 20 years (that's what I was doing 20 years ago). -- _Deirdre web / blog: http://deirdre.net/ "Memes are a hoax! Pass it on!" From iennae at gmail.com Wed Jul 12 11:27:05 2006 From: iennae at gmail.com (Jennifer Davis) Date: Wed, 12 Jul 2006 11:27:05 -0700 Subject: Fwd: 40% Off Select Apress and friends of ED Titles at B&N--Through August 9, 2006 In-Reply-To: References: Message-ID: Discounts on Apress and Friends of ED titles ---------- Forwarded message ---------- From: Apress Newsletter Date: 12 Jul 2006 11:20:43 -0700 Subject: 40% Off Select Apress and friends of ED Titles at B&N--Through August 9, 2006 To: iennae at gmail.com Your time and money are valuable so we'll keep this short: Through August 9, 2006, you can buy select Apress and friends of ED titles at 40% off the list price at your local Barnes & Noble store. (Additional Apress and friends of ED titles at 40% off are available online only from www.bn.com/apress.) To find the closest Barnes & Noble store, and to read about featured titles, visit http://www.apress.com/promo/bnj/. Check out the promotional book display at your local Barnes & Noble and take a quick picture of yourself there. Then head over to http://www.apress.com/promo/bn/index.html and upload your image for a chance to win **an iPod nano.** Shopping has never been so rewarding! Already a fan of Apress and friends of ED books? Then you can help us spread the word about the Barnes & Noble 40% off promotion to your colleagues, peers, and friends. You can download a medallion as well as link to us here: http://www.apress.com/promo/bnj/. Thank you in advance! Apress and friends of ED -- Jennifer Davis From sigje at sigje.org Wed Jul 12 12:10:05 2006 From: sigje at sigje.org (Jennifer Davis) Date: Wed, 12 Jul 2006 12:10:05 -0700 (PDT) Subject: Quiz Show Details - July 13 - Tomorrow! Message-ID: Quiz Show Details Part of the BayLISA network social is a sysadmin/geek quiz. There's a mix of questions about sysadmin, geek culture, and one or two real life things thrown in for good measure. The quiz will start at 8pm, giving one hour beforehand to socialize and generally relax and also to form teams and enter. You do NOT need to participate in the quiz to come to the social evening. We'll try and keep the event on one side of the room so as not to disturb others in the party. TEAMS Up to 4 people per team ROUNDS ~10 rounds 10 questions per round Questions will be read out, any supporting materials played/shown. Teams/Individuals will respond on paper. After each round, papers will be collected and scored. (Hint. There is a BayLISA History Round..) PRE-REGISTER Team Name Team Members rsvp at baylisa.org (pre registering helps us plan prizes better.) PRIZES (1) BayLISA conference ticket Gift certificates to various geek friendly vendors Top scoring individual/team will be posted up to the BayLISA website. From k6dlc at arrl.net Sun Jul 16 14:17:56 2006 From: k6dlc at arrl.net (Daniel) Date: Sun, 16 Jul 2006 14:17:56 -0700 Subject: ibm thinkpad mousetab Message-ID: <44BAAD04.4000601@arrl.net> Hello, I know many of you have IBM thinkpads that are running Linux. My question to those is how do I stop the erratic applications launches with the mousetab, touchtap? I have checked on the Internet and I have found that this is a known issue , but had not found the corrective solution. When I connect a USB mouse all is ok. And my system happens is dual bootable with XP and there is no problem with the touchmouse. Thank you for reading this. -- ------------------------------------------------------ Daniel PGP: AD5A 96DC 7556 A020 B8E7 0E4D 5D5E 9BA5 C83E 8C92 From david at catwhisker.org Sun Jul 16 19:41:02 2006 From: david at catwhisker.org (David Wolfskill) Date: Sun, 16 Jul 2006 19:41:02 -0700 Subject: "ssh | dd" pipeline breaks for cron-initiated job (Solaris 2.6) Message-ID: <20060717024102.GX41150@bunrab.catwhisker.org> [Caveat: long message: about 16 kB -- dhw] OK; this is a little off-the-wall, and I realize that Solaris 2.6 is not exactly cutting-edge technology. Trust me: the SS5/170 on which it runs is also not cutting-edge technology. :-) And this is at home, rather than ${paying_job}; I'm sure we're all familiar with adages about "shoemaker's children" and all that, so there's little to be gained by rehashing that sort of thing (IMO). In the process of chasing this problem down, I have discovered a thing or two I found not-so-intuitive, and sharing them here is about the only way I have to thank those with the patience to wade through the below prose. :-} Summary: local "dd" process in an "ssh ${host} ... | dd ... >/dev/rmt/0n" pipeline: * (rarely, but) sometimes works * sometimes hangs (and may thus be killed) * often locks up, using >99% CPU so effectively that it is unkillable and "reboot" doesn't; I need to resort to forcibly power-cycling the machine to stop it and allow normal work to take place on my SPARCstation 5/170 running Solaris 2.6 -- but *only* when the process is invoked via "cron." Whenever I invoke it "by hand," it works flawlessly. I'd appreciate some help fixing the problem. Yes, I am aware that "cron" runs things with a rather restricted (and often different) environment; also, different shells tend to behave differently. More on this below. Further, this was never a problem until I migrated the OpenSSH running on the SS5 from 2.5.1p2 to 4.3p2. Yes, I've checked for reported problems with pipelines hanging under OpneSSH-4.3p2, and I've tried applying a couple of the patches I found for the PR that I found; neither appears to have had the slightest effect on the observed symptoms. Historical background: The subject process is a Perl script (that originally dates from late 1994) that runs in the wee small hours of the morning to create and store backup images and log what happens. Its design (such as it is) involves 3 categories of machine: * 1 "controller" -- this is the machine where the Perl script runs, kicked off by cron, and where logs are written. * 1 "tape host" -- this is the machine where the tape drive is. In the current scenario, the above are the same machine -- the SS5 running Solaris 2.6. * >0 "client hosts" -- the machines that house the file systems to be backed up. In the current scenario, the SS5 is one of these, as are a couple of x86-arch boxen running FreeBSD (4.11 & 6.1). The original version of the script used "rsh" for accessing the "remote" hosts; I didn't migrate to using OpenSSH until early 2002. At that time, the version of OpenSSH I installed on the SS5 was 2.5.1p2. I didn't know a huge amount about SSH at the time, and allowed nearly everything to use default values -- so protocol 1 was the protocol used. I did set things up to use PK ("public key") authentication (without a passphrase), since the exercise was intended for unattended operation. It has always used a non-root user for its execution; the name of that user in this environment is "backup." The normal mode of operation is to create level 0 "{,ufs}dump" images earlyt Monday morning; the other days of the week, it creates level 5 "{,ufs}dump" images (based on the level 0 images). In operation, the script takes a list of hosts; for each host, in the specified order, it: * Queries the host (via "uname -s -r") as to what it's running. * Based on the results of the above, determines: * A program to use to display the current capacity of each mounted file system, selecting only those file systems that are backed by disk partitions (vs. swap space, for example). * A program to use to create a backup image at the desired level, as well as any flags to use when invoking it. (FreeBSD 5.x and above, for UFS2 file systems, support "snapshots," and the -L flag for dump in such systems causes a snapshot to be created and the dump to be run from the snapshot. This is useful for file systems that are currently mounted as writable.) * For full backups, determines some commands to run (e.g. "sysinfo -level all") to run to document the hardware configuration, to the extent that that is feasible. Note that the script is generally written to use complete pathnames for the above commands, as well as most others (possibly all; I haven't checked thoroughly recently). * Queries the host to find the currently-mounted, disk-partition-backed file systems. * For each such file system found: * Create a backup image (using SSH to access the host unless the current host happens to be the "controller" host), directing the resulting stream of bytes to standard output (thus, incidentally, avoiding a lot of problems with {,ufs}dump guessing the capacity of the tape). * pipe the standard output of the above to a "dd" process on the tape host, the output of the dd process being directed to the (no rewind on close) tape device), specifying a blocksize of 32 kB. (More on this below). There are the usual reality checks on the results, with provisions for re-doing things, possibly after switching tapes. One of the "client hosts" was the box to which SSH connection requests from the Internet were being forwarded; since (at the time) I was still allowing password authentication, I restricted the allowed sources of SSH connection requests to "believed to be friendly" IP ranges on the packet filter. A few months ago, my wife drove up into Oregon & Idaho; I used this as a catalyst to suggest to her that she might be able to check her email from where she was if she were to migrate from using password authentication to using PK authentication. (Each of us reads mail by logging in to one of the boxen either directly or via SSH.) After some discussion, she agreed to do that. Once that appeared to work, I set about: * disallowiong password authentication (finally!), permitting only PK authentication; * removing the packet filter restriction on SSH requests; * upgrading the OpenSSH-2.5.1p2 on the SS5 to 4.3p2; * ensuring that the OpenSSH configuration on each machine used SSH protocol 2 (as a server, and preferred protocol 2 as a client). My (interactive) tests all appeared to work as expected; I was reasonably pleased with the outcome at this point. The following morning, I found that the backup of the first file system on the first-specified remote host had failed with a write: Invalid argument and select: Bad file number Huh??!? This script, has -- modulo a few minor tweaks here & there -- been running Just Fine for over a flaming DECADE! What could cause such breakage? I spent a couple of weeks "banging my head against" that wall, trying all kinds of evasive maneuvers -- to no avail (of course). I couldn't even determine with any semblence of assurance which program was issuing those messages, or on which machine. I finally(!) re-re-reviewed the Solaris 2.6 man page for "dd," and found something rather counter-intuitive: When dd reads from a pipe, using the ibs=X and obs=Y operands, the output will always be blocked in chunks of size Y. When bs=Z is used, the output blocks will be what- ever was available to be read from the pipe at the time. Now, the reason I noticed this is that up to the change I made after reading that passage, the "dd" invocation had used "bs=32k" with the intent to specify that both input and output block sizes were to be 32 kB. And I now realized that the whines about "write: Invalid argument" were from dd on the SS5, complaining (bitterly) when told to write to the tape device with an oddball number of bytes. Accordingly, I changed the "dd" invocation to specify "ibs=32k obs=32k," and ensured that "{,ufs}dump invocations wrote 32 kB "records." As a result, those errors stopped occurring. The problems that then surfaced, however, gave me reason to wax nostalgic for the above-described problem. Here's a cut/paste of an RCS log entry for the next salient change I made to the script; I think it expresses things fairly well: ---------------------------- revision 1.29 date: 2006/06/02 11:40:37; author: david; state: Exp; lines: +1 -1 Change the PATH to be exactly the same directories, in exactly the same order, as we get via "sudo - backup; exec tcsh; echo $path" -- because once I do that, runing the script from the command line always works, while the script (as run from cron) always fails on the first or second "remote" file system. Usually, the mode of failure involves a "dd" process on the tape host consuming CPU like there's no tomorrow, and being unkillable -- to the point that while I can issue commands (VERY slowly), a "reboot" has no effect after waiting 15 minutes. I have been resorting to physically powering off the machine, then relying on the fsck to clean things up -- and there's no polite way to express just how undesirable that is. I think I'm getting desperate. ---------------------------- That didn't help. Neither did tweaking the input block size for dd. Nor did "conv=sync." I recently augmented the "debugging" flag's output to include a dump of the %ENV hash; here's what it reports when the script is invoked via cron: Environment: HOME=/usr/local/etc/backup LOGNAME=backup PATH= /usr/local/sbin:/usr/local/bin:/usr/ucb:/usr/sbin:/usr/bin:/sbin:/bin:/usr /local/etc/backup SHELL=/usr/bin/sh TZ=US/Pacific Here's what it reports when I invoke the script interactively from the Bourne shell (which is the login shell for the user in question), via "sudo su - backup": Environment: HOME=/usr/local/etc/backup LOGNAME=backup PATH= /usr/local/sbin:/usr/local/bin:/usr/ucb:/usr/sbin:/usr/bin:/sbin:/bin:/usr /local/etc/backup SHELL=/bin/sh TERM=xterm USER=backup Finally, here's what it reports when I invoke the script interactively from tcsh, which is the way I normally invoke it for a restart (via "sudo su - backup" followed by "exec tcsh"): Environment: GROUP=nogroup HOME=/usr/local/etc/backup HOST=pogo HOSTTYPE=sun4 LOGNAME=backup MACHTYPE=sparc OSTYPE=solaris PATH= /usr/local/sbin:/usr/local/bin:/usr/ucb:/usr/sbin:/usr/bin:/sbin:/bin:/usr /local/etc/backup PWD=/usr/local/etc/backup REMOTEHOST=bunrab.catwhisker.org SHELL=/bin/sh SHLVL=1 TERM=screen USER=backup VENDOR=sun At this stage, I have been unable to re-create the failure symptoms if I invoke the script interactively. I always get a failure -- though not always on the first remote file system; sometimes it's the 2nd -- when the script is invoked via cron. There does not appear to be an issue of interactive use allowing reporting & recovery from an error condition; it Just Works. Here's a sample script output from a failing attempt: =========================================================== ##### # # # # ##### ## ##### # # # # ## # # # # # # # ##### # # # # # # # # # ##### # # # # # # # ##### ###### # # # # # # # ## # # # # # # ##### #### # # # # # # ##### bunrab runs "FreeBSD 4.11-STABLE" Using "/bin/df -kt ufs" for filesystem query on bunrab Using "/sbin/dump -" to perform the dump(s) for bunrab Backups for bunrab on Sun Jul 16 03:08:21 PDT 2006 Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ad0s2a 161262 43006 105356 29% / /dev/ad0s2e 1903014 747254 1003520 43% /usr /dev/ad0s3e 2064302 292154 1607004 15% /var /dev/ad0s3f 25286020 2633974 20629166 11% /common Dump level for bunrab: 5 /dev/ad0s2a 161262 43006 105356 29% / ... dev=/dev/ad0s2a; kb=161262; used=43006; avail=105356; cap=29%; mount=/; fudged= 51607.2 Starting dump of /dev/ad0s2a at Sun Jul 16 03:08:33 PDT 2006 Vendor 'ARCHIVE ' Product '4586XX 28887-XX' tape drive: sense key(0x0)= No Additional Sense residual= 0 retries= 0 file no= 95 block no= 0 Dumping /dev/ad0s2a on tape 1, file 95 (bunrab:/) Trying to issue "ssh bunrab /bin/df -kt ufs /" Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ad0s2a 161262 43006 105356 29% / Issuing command "ssh bunrab /sbin/dump -5uf - -b32 /dev/ad0s2a | /bin/dd of=/dev /rmt/0n conv=sync ibs=32k obs=32k" DUMP: Date of this level 5 dump: Sun Jul 16 03:08:46 2006 DUMP: Date of last level 0 dump: Mon Jul 10 04:31:12 2006 DUMP: Dumping /dev/ad0s2a (/) to standard output DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 162 tape blocks. DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: DUMP: 190 tape blocks DUMP: finished in less than a second DUMP: level 5 dump on Sun Jul 16 03:08:46 2006 DUMP: DUMP IS DONE 0+18 records in 18+0 records out [And at this point, the "dd" process on the control/tape host hung, but was killable.] I then interactively re-started the backup: Backup script restarted as /usr/local/etc/backup/script -h /usr/local/etc/backup/hostslist -vxjl /v ar/log/dumplog.incremental -r bunrab:/ on Sun Jul 16 04:27:54 PDT 2006 Capacity=7500000; density=54000; length=36000; add_fudge=0; mult_fudge=1.2 Current tape position is now 96 Saved file number is 95; current tape position is 96 Issuing /bin/mt -f /dev/rmt/0n bsf 2 Current tape position is now 95 ^L=========================================================== ##### # # # # ##### ## ##### # # # # ## # # # # # # # ##### # # # # # # # # # ##### # # # # # # # ##### ###### # # # # # # # ## # # # # # # ##### #### # # # # # # ##### bunrab runs "FreeBSD 4.11-STABLE" Using "/bin/df -kt ufs" for filesystem query on bunrab Using "/sbin/dump -" to perform the dump(s) for bunrab Dump level for bunrab: 5 /dev/ad0s2a 161262 43006 105356 29% / ... dev=/dev/ad0s2a; kb=161262; used=43006; avail=105356; cap=29%; mount=/; fudged= 51607.2 Starting dump of /dev/ad0s2a at Sun Jul 16 04:28:27 PDT 2006 Vendor 'ARCHIVE ' Product '4586XX 28887-XX' tape drive: sense key(0x0)= No Additional Sense residual= 0 retries= 0 file no= 95 block no= 0 Dumping /dev/ad0s2a on tape 1, file 95 (bunrab:/) Trying to issue "ssh bunrab /bin/df -kt ufs /" Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ad0s2a 161262 43006 105356 29% / Issuing command "ssh bunrab /sbin/dump -5uf - -b32 /dev/ad0s2a | /bin/dd of=/dev /rmt/0n conv=sync ibs=32k obs=32k" DUMP: Date of this level 5 dump: Sun Jul 16 04:28:37 2006 DUMP: Date of last level 0 dump: Mon Jul 10 04:31:12 2006 DUMP: Dumping /dev/ad0s2a (/) to standard output DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 162 tape blocks. DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: DUMP: 190 tape blocks DUMP: finished in 1 seconds, throughput 190 KBytes/sec DUMP: level 5 dump on Sun Jul 16 04:28:37 2006 DUMP: DUMP IS DONE 0+17 records in 17+0 records out Finished dump of bunrab:/dev/ad0s2a at Sun Jul 16 04:28:41 PDT 2006 (bunrab:/) [ tape 1, file 95] Current tape position is now 96 Vendor 'ARCHIVE ' Product '4586XX 28887-XX' tape drive: sense key(0x0)= No Additional Sense residual= 0 retries= 0 file no= 96 block no= 0 ... [and so the re-started backup completed normally....] Insights for diagnosing -- or even better, resolving -- this problem would be most welcome. Requests for additional information should probably be directed to me, rather than the list; I've set Reply-To accordingly, and promise to follow up with anything useful or interesting that's relevant. Thanks! Peace, david -- David H. Wolfskill david at catwhisker.org Doing business with spammers only encourages them. Please boycott spammers. See http://www.catwhisker.org/~david/publickey.gpg for my public key. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 195 bytes Desc: not available URL: From ahorn at deorth.org Wed Jul 19 16:11:28 2006 From: ahorn at deorth.org (Alan Horn) Date: Wed, 19 Jul 2006 16:11:28 -0700 (PDT) Subject: BayLISA General Meeting - Thurs 20th July at Yahoo. Message-ID: PLEASE NOTE THE VENUE LOCATION (NOT APPLE) If you know folks who attend who aren't on this list and don't look at the BayLISA website, please let them know. Statistically, despite our best efforts, a change of venue results in some folks always going to the wrong place :/ oh well. The July General BayLISA meeting will be taking place at the Yahoo Campus. Address: 701 First Avenue Sunnyvale, CA ---- Shell Best Practices Jim Dennis will be packing in his 3 day class into 3 hours of indepth shell programming. This is NOT an intro to shell. ---- How to get to Yahoo : Directions are available online at http://yhoo.client.shareholder.com/press/address.cfm Instead of turning right into the Yahoo parking lot as stated last in the directions, you should trn *LEFT* and park in the Bldg E. parking lot. This presentation will be happened in Classroom 9 of Bldg. E. Security will direct you to the right location. Thanks, Alan From asheesh at asheesh.org Thu Jul 20 20:20:13 2006 From: asheesh at asheesh.org (Asheesh Laroia) Date: Thu, 20 Jul 2006 23:20:13 -0400 (EDT) Subject: In Yahoo! lobby Message-ID: I'm in the Yahoo! lobby, but I don't know where the meeting is. I know I'm late; sorry about that. How would I find you guys? Thanks! :-) -- Asheesh. -- Yow! Did something bad happen or am I in a drive-in movie?? From bill at wards.net Tue Jul 25 15:35:29 2006 From: bill at wards.net (Bill Ward) Date: Tue, 25 Jul 2006 15:35:29 -0700 Subject: Peninsula Linux Users' Group this week - MythTV (Build your own TiVO-like box with Open Source tools) Message-ID: <3d2fe1780607251535scea76f2te25b4d42d4076fa2@mail.gmail.com> PenLUG (Peninsula Linux Users' Group) is having a meeting the day after tomorrow! You are invited. RSVP is not required, but so we can get an idea of how many people to expect please send mail to rsvp at penlug.org to let us know if you are planning to attend. For full details about the group, as well as directions to the meeting, visit www.penlug.org. Free pizza, hors d'ouvres and soft drinks, courtesy of Open Country, will be provided. Free review copies of books from O'Reilly, Prentice-Hall, and other publishers, will be given out as door prizes. Be on time for the eary bird drawing. Date: Thursday, July 27th, 2006 Time: meeting 7:00 - 9:00 PM, social/networking until 10 PM Location: Twin Pines Park, 1225 Ralston Ave, Belmont, CA 94002 Speaker: Scott Boyd Topic: MythTV MythTV is a GPL'd application that allows you to create a super digital video recorder (DVR) on top of Linux that requires no monthly subscription fees. For a reasonably complete description see: http://en.wikipedia.org/wiki/MythTV The MythTV project page is located at: http://www.mythtv.org/ A 2 tuner standard definition analog system will be demonstrated. Topics include: * How it works * Basic use demonstration * How and where to get free TV show listings * Video resolution, bit rates, file sizes and video quality * Burning DVDs of your recordings * Transcoding video files * Storing, indexing and playing your Music CD collection in the system * Controlling the system via the web * Q and A. A shopping list of components that are known to work will be provided. Scott Boyd is an freelance consultant and an owner of A-Street Internet a 10 year old store front Internet Service Provider located in San Carlos, California. Scott has consulted with many valley companies such as Sun, Oracle, Cisco, HP, and others including the infamous Kibu. Scott has worked with Unix since Unisoft Version 7 and Linux since November 1991. From dannyman at toldme.com Wed Jul 26 16:58:42 2006 From: dannyman at toldme.com (Danny Howard) Date: Wed, 26 Jul 2006 16:58:42 -0700 Subject: Spot Cooling Message-ID: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> Hello, Let's say you just started at a small company with a smallish server closet that had no climate control and was running really hot. (We'll probably max out towards 12 servers.) Let's say you wanted to get a little portable A/C unit in there to help alleviate this problem. Let's say you weren't sure how much power you could run in, and ventilation might be difficult ... And let's say you knew absolutely nothing about A/C technology. What sort of things would I be looking for in a unit, and what do I need to watch out for? It sounds like I may need to drain water, and/or ventilate the unit, and I'll have to be areful where I plug it in. Does anyone have a paticular favorite unit? Thanks, -danny -- http://dannyman.toldme.com -------------- next part -------------- An HTML attachment was scrubbed... URL: From rsr at inorganic.org Wed Jul 26 17:16:48 2006 From: rsr at inorganic.org (Roy S. Rapoport) Date: Wed, 26 Jul 2006 17:16:48 -0700 Subject: Spot Cooling In-Reply-To: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> References: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> Message-ID: <20060727001648.GA28846@puppy.inorganic.org> On Wed, Jul 26, 2006 at 04:58:42PM -0700, Danny Howard wrote: > Let's say you weren't sure how much power you could run in, and ventilation > might be difficult ... > > And let's say you knew absolutely nothing about A/C technology. > > What sort of things would I be looking for in a unit, and what do I need to > watch out for? > > It sounds like I may need to drain water, and/or ventilate the unit, and > I'll have to be areful where I plug it in. > > Does anyone have a paticular favorite unit? $500 Costco special. Sorry, did I say $500? I meant $400. http://www.costco.com/Browse/Product.aspx?Prodid=11126033&whse=&topnav=&browse=&s=1 No drain issues. From michael at halligan.org Wed Jul 26 20:56:55 2006 From: michael at halligan.org (Michael T. Halligan) Date: Wed, 26 Jul 2006 20:56:55 -0700 Subject: Spot Cooling In-Reply-To: <20060727001648.GA28846@puppy.inorganic.org> References: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> <20060727001648.GA28846@puppy.inorganic.org> Message-ID: <44C83987.8060002@halligan.org> Roy S. Rapoport wrote: > On Wed, Jul 26, 2006 at 04:58:42PM -0700, Danny Howard wrote: > >> Let's say you weren't sure how much power you could run in, and ventilation >> might be difficult ... >> >> And let's say you knew absolutely nothing about A/C technology. >> >> What sort of things would I be looking for in a unit, and what do I need to >> watch out for? >> >> It sounds like I may need to drain water, and/or ventilate the unit, and >> I'll have to be areful where I plug it in. >> >> Does anyone have a paticular favorite unit? >> > > $500 Costco special. Sorry, did I say $500? I meant $400. > > http://www.costco.com/Browse/Product.aspx?Prodid=11126033&whse=&topnav=&browse=&s=1 > > No drain issues. > And of course, you're going to buy two of them, aren't you? You're also going to hook up your servers to a UPS, when the rolling blackouts hit this summer.. And you're also going to configure your servers to shutdown immediately if power fails, because the UPS won't be able to run the inductive load of the AC, and all of a sudden 12 servers in a tiny room turns into a hardware melting oven. Or perhaps it just might make more sense to put them into a colo facility? From eric at explosive.net Wed Jul 26 23:40:55 2006 From: eric at explosive.net (Eric Sorenson) Date: Wed, 26 Jul 2006 23:40:55 -0700 (PDT) Subject: Spot Cooling In-Reply-To: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> References: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> Message-ID: On Wed, 26 Jul 2006, Danny Howard wrote: > Let's say you just started at a small company with a smallish server closet > that had no climate control and was running really hot. (We'll probably max > out towards 12 servers.) > > Let's say you wanted to get a little portable A/C unit in there to help > alleviate this problem. > > Let's say you weren't sure how much power you could run in, and ventilation > might be difficult ... > > And let's say you knew absolutely nothing about A/C technology. > > What sort of things would I be looking for in a unit, and what do I need to > watch out for? > > It sounds like I may need to drain water, and/or ventilate the unit, and > I'll have to be areful where I plug it in. > > Does anyone have a paticular favorite unit? Hi Danny. We occasionally have to augment our flaky air conditioner with these robby-the-robot units from MovinCool, which we rent by the week in times of need : http://www.movincool.com/product_cp26.shtml All we have to do to set them up is run a duct for the hot air rejection up above the room's drop ceiling. Yes, this just dislocates the problem but it is somewhat better than having the netapps crash due to overheating. If I were looking for something slightly more permanent but still on the cheap side, I would head towards what are called "package" units, the most common of which is the canonical hang-it-out-the-window box. If you don't have a window handy, a ceiling mount package unit like this guy would be a nice fit: http://www.movincool.com/product_cm12.shtml The next step up is a split system, where the 'split' is between the evaporator (room return->fan->cold refrigerant->output ducts) and condenser (hot refrigerant->fan->heat rejection exhaust) coils. The brand name with cachet here is Liebert but I have heard good things about the APC infrastruXure systems. Based on your description, this kind of system is probably more than you're after, but I mention it because there is something incomparably sweet about the sharp tang of really god-damn powerful air conditioning keeping your machines nice and comfortable, and that's something you're only going to get with an appropriately sized and datacenter-specific A/C system. In any case - for getting up to speed on datacenter power and cooling I recommend checking out APC's white paper collection. There's some very useful information in there (check out the BTU->Tons->Watts table at the end of WP-11) and you're exactly the audience for which they're intended. Hope this helps. -- - Eric Sorenson - N37 17.255 W121 55.738 - http://eric.explosive.net - - Personal colo with a professional touch - http://www.explosive.net - From ahorn at deorth.org Thu Jul 27 02:04:47 2006 From: ahorn at deorth.org (Alan Horn) Date: Thu, 27 Jul 2006 02:04:47 -0700 (PDT) Subject: Spot Cooling In-Reply-To: <44C83987.8060002@halligan.org> References: <2a5241e00607261658u45dfa134wb8d7b0b56f6fc2b@mail.gmail.com> <20060727001648.GA28846@puppy.inorganic.org> <44C83987.8060002@halligan.org> Message-ID: > Or perhaps it just might make more sense to put them into a colo facility? I can personally attest that while putting stuff into a colo is undoubtedly the smarter choice once it makes sense to your pocketbook, I've seen enough tier-1 data center cooling and power failures recently to doubt whether the risk is lower in this current heatwave. Cheers, Al From guy at extragalactic.net Fri Jul 28 09:00:27 2006 From: guy at extragalactic.net (Guy B. Purcell) Date: Fri, 28 Jul 2006 09:00:27 -0700 Subject: Happy Sysadmin Appreciation Day! Message-ID: <6BBBA2DD-7249-4DE5-971F-FD2C13CF9C7A@extragalactic.net> http://www.sysadminday.com/ -Guy From guy at extragalactic.net Mon Jul 31 11:06:29 2006 From: guy at extragalactic.net (Guy B. Purcell) Date: Mon, 31 Jul 2006 11:06:29 -0700 Subject: History of UNIX Message-ID: <2453B3E4-C0EB-4BD2-8847-3276EA637B96@extragalactic.net> I just came across this page & thought others also might find it pretty neat: . -Guy