From joseph.bishay at gmail.com Tue Jul 5 03:31:39 2011 From: joseph.bishay at gmail.com (Joseph Bishay) Date: Mon, 4 Jul 2011 23:31:39 -0400 Subject: [K12OSN] Laser Printer super-slow? [SOLVED] Message-ID: Hello everyone. So as per people's recommendations, I upgraded the driver from the existing foomatic to the HPlip driver and like magic it started working at regular speed. I tested that same PDF and it was able to print 98 pages in about 15 minutes as opposed to 18 hours (no joke!). It is very strange that the recommended driver performed so poorly! My sincere thanks to everyone who helped! Joseph On Mon, Jun 27, 2011 at 8:49 AM, Barry Cisna wrote: > Joseph, > > I just happened to look at your initial post here in regards to your > Laserjet printer being so slow. I did not pay close enough attention the > first time i read it, I guess. > Seeing now that you have this printer attached via an parallel port > cable this is probably almost to be expected in regards to print out > speed of pdf's. > Does this old printer provide an usb port by chance? If so,,this would > speed up the print spool considerably. I am guessing the printer is old > enough an usb interface was not thought of..:) > You should try upgrading the printer driver to the hplip driver (from > the foomatic you have listed) and you ?would see a tiny bit of > performance increase as the printer sits now. > Let us know your findings. > > Take Care, > Barry > > > > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From joseph.bishay at gmail.com Tue Jul 5 04:28:29 2011 From: joseph.bishay at gmail.com (Joseph Bishay) Date: Tue, 5 Jul 2011 00:28:29 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE Message-ID: Hello everyone, I hope you are all doing well and had an enjoyable long weekend. A few weeks back I received some excellent advice with regards to setting up a new LTSP network in our new elementary school building. I had already sourced out the parts and was just about to order them when a donation arrived at my door! I received 5 servers with the following specifications: 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads total) running at 3 Ghz. 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. So I wanted to mention these machines to see if I can utilize them for our LTSP network if possible, or should I stick with my original plan which was using another machine that we have: Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for /home Granted the newly donated machines are all server-grade, with redundant power supplies, etc as compared to the i5 which is a custom desktop build. We need to power about 65 thin clients in the new building -- and for many in the building this will be the first foray into Linux (which they are nervous about) so I want the setup to wow them. Thanks very much! Joseph From jim.kinney at gmail.com Tue Jul 5 12:48:19 2011 From: jim.kinney at gmail.com (Jim Kinney) Date: Tue, 5 Jul 2011 08:48:19 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: References: Message-ID: More hardware is (almost) ALWAYS a good thing!! When I did the APS 7 school project, a single Proliant DL385 G1 was used for 100 clients. two dual core Opteron and 8 GB RAM per application server plus a separate RAID5 SAS drive system for /home. See here for some specs: Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools<%20http://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools> The only issues we really hit was flash eating up all resources (as flash is so good at doing) when 3-4 classrooms would all hit the same web pages with a zillion flash blinkies all over. Streaming flash video was a nightmare. This was before local apps were developed. You don't specify RAM for the newly donated machines so I can't offer advice on specific designs. But you appear to have a powerful enough stack of servers in the donated batch to be quite successful. I do suggest to disable hyperthreading in the bios on those Xeons as cache thrashing becomes an issue under any load. On Tue, Jul 5, 2011 at 12:28 AM, Joseph Bishay wrote: > Hello everyone, > > I hope you are all doing well and had an enjoyable long weekend. > > A few weeks back I received some excellent advice with regards to > setting up a new LTSP network in our new elementary school building. > I had already sourced out the parts and was just about to order them > when a donation arrived at my door! I received 5 servers with the > following specifications: > > 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads > total) running at 3 Ghz. > 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon > (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is > 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. > > So I wanted to mention these machines to see if I can utilize them for > our LTSP network if possible, or should I stick with my original plan > which was using another machine that we have: > > Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for /home > > Granted the newly donated machines are all server-grade, with > redundant power supplies, etc as compared to the i5 which is a custom > desktop build. > > We need to power about 65 thin clients in the new building -- and for > many in the building this will be the first foray into Linux (which > they are nervous about) so I want the setup to wow them. > > Thanks very much! > > Joseph > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -- -- James P. Kinney III As long as the general population is passive, apathetic, diverted to consumerism or hatred of the vulnerable, then the powerful can do as they please, and those who survive will be left to contemplate the outcome. - *2011 Noam Chomsky http://heretothereideas.blogspot.com/ * -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Tue Jul 5 12:48:34 2011 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Tue, 05 Jul 2011 08:48:34 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: References: Message-ID: <4E130822.60009@cmosnetworks.com> Depends on which apps you're running. A few years back before all the EDU Web sites started infecting themselves with Adobe Flash, I'd have said HECK YEAH! For the standard office-type stuff (OpenOffice.org, programming classes, "normal" Web surfing, etc.), any of those machines would be great. Also, for stuff like TuxType/Math, ChildsPlay, and similar games, you're golden with such servers. OTOH, if you're talking about doing streaming multimedia, and *especially* Adobe Flash, you might need something a bit beefier, CPU-wise. The ProLiant DL580 G3 is a Pentium-4 architecture, which of course is not as fast as the "Core 2" architecture, clock for clock. The same applies for the SuperMicro P4DP8-G2 motherboards. Both of these motherboards have Gigabit Ethernet, which is very important. It's worth it to try a server and see. What you could do is try a pilot test with, say, 5 thin clients, then bump up to 10, and see how things go. With Gigabit Ethernet, if you're doing a class full of TuxType or TuxMath sessions, understand that you'll get about 14 client sessions before you saturate the Gig-E link. Be sure to do multiple types of tests with whatever the kids are expected to be doing. If they don't have enough oomph, then they'd likely make great file/print/Web/etc. servers. Depending on your thin clients, K12LTSP 5.0EL might be a very good choice at this point, since it's battle tested and proven over several years and has relatively low server CPU requirements. --TP Joseph Bishay wrote: > Hello everyone, > > I hope you are all doing well and had an enjoyable long weekend. > > A few weeks back I received some excellent advice with regards to > setting up a new LTSP network in our new elementary school building. > I had already sourced out the parts and was just about to order them > when a donation arrived at my door! I received 5 servers with the > following specifications: > > 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads > total) running at 3 Ghz. > 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon > (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is > 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. > > So I wanted to mention these machines to see if I can utilize them for > our LTSP network if possible, or should I stick with my original plan > which was using another machine that we have: > > Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for /home > > Granted the newly donated machines are all server-grade, with > redundant power supplies, etc as compared to the i5 which is a custom > desktop build. > > We need to power about 65 thin clients in the new building -- and for > many in the building this will be the first foray into Linux (which > they are nervous about) so I want the setup to wow them. > > Thanks very much! > > Joseph > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From jim.kinney at gmail.com Tue Jul 5 13:06:47 2011 From: jim.kinney at gmail.com (Jim Kinney) Date: Tue, 5 Jul 2011 09:06:47 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: <4E130822.60009@cmosnetworks.com> References: <4E130822.60009@cmosnetworks.com> Message-ID: Agreed! The testing of proposed apps is vital. TuxMath is fantastic for all school ages but it's a serious bandwidth hog. ditto for TuxType (both are raw pixmaps at full screen resolution running 30 fps over a network connection! Poor client video performance can impact these as well as resource starvation on the server.) A major factor is LTSP servers is RAM. There's no such thing as too much RAM! On Tue, Jul 5, 2011 at 8:48 AM, Terrell Prude' Jr. < microman at cmosnetworks.com> wrote: > Depends on which apps you're running. A few years back before all the EDU > Web sites started infecting themselves with Adobe Flash, I'd have said HECK > YEAH! For the standard office-type stuff (OpenOffice.org, programming > classes, "normal" Web surfing, etc.), any of those machines would be great. > Also, for stuff like TuxType/Math, ChildsPlay, and similar games, you're > golden with such servers. > > OTOH, if you're talking about doing streaming multimedia, and *especially* > Adobe Flash, you might need something a bit beefier, CPU-wise. The ProLiant > DL580 G3 is a Pentium-4 architecture, which of course is not as fast as the > "Core 2" architecture, clock for clock. The same applies for the SuperMicro > P4DP8-G2 motherboards. Both of these motherboards have Gigabit Ethernet, > which is very important. > > It's worth it to try a server and see. What you could do is try a pilot > test with, say, 5 thin clients, then bump up to 10, and see how things go. > With Gigabit Ethernet, if you're doing a class full of TuxType or TuxMath > sessions, understand that you'll get about 14 client sessions before you > saturate the Gig-E link. Be sure to do multiple types of tests with whatever > the kids are expected to be doing. If they don't have enough oomph, then > they'd likely make great file/print/Web/etc. servers. > > Depending on your thin clients, K12LTSP 5.0EL might be a very good choice > at this point, since it's battle tested and proven over several years and > has relatively low server CPU requirements. > > --TP > > > > Joseph Bishay wrote: > >> Hello everyone, >> >> I hope you are all doing well and had an enjoyable long weekend. >> >> A few weeks back I received some excellent advice with regards to >> setting up a new LTSP network in our new elementary school building. >> I had already sourced out the parts and was just about to order them >> when a donation arrived at my door! I received 5 servers with the >> following specifications: >> >> 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads >> total) running at 3 Ghz. >> 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon >> (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is >> 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. >> >> So I wanted to mention these machines to see if I can utilize them for >> our LTSP network if possible, or should I stick with my original plan >> which was using another machine that we have: >> >> Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for >> /home >> >> Granted the newly donated machines are all server-grade, with >> redundant power supplies, etc as compared to the i5 which is a custom >> desktop build. >> >> We need to power about 65 thin clients in the new building -- and for >> many in the building this will be the first foray into Linux (which >> they are nervous about) so I want the setup to wow them. >> >> Thanks very much! >> >> Joseph >> >> ______________________________**_________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/**mailman/listinfo/k12osn >> For more info see >> >> > > ______________________________**_________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/**mailman/listinfo/k12osn > For more info see > -- -- James P. Kinney III As long as the general population is passive, apathetic, diverted to consumerism or hatred of the vulnerable, then the powerful can do as they please, and those who survive will be left to contemplate the outcome. - *2011 Noam Chomsky http://heretothereideas.blogspot.com/ * -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Tue Jul 5 13:43:59 2011 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Tue, 05 Jul 2011 09:43:59 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: References: Message-ID: <4E13151F.5090304@cmosnetworks.com> +1 to Jim's advice. Unfortunately, the link to the LTSP_Pilot_for_Atlanta_Public_Schools doesn't seem to work too well in my mail client (Thunderbird 2.0.0.24-CentOS). Here's the full URL. It may get wrapped, because it's long. http://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools Note that in this project, in addition to lots of DRAM, Jim used a 4 or 6 (not sure which) GB network pipe to the thin clients. He also had four full cores at 2.6GHz, and they were Opterons, which are not exactly slow in the first place. --TP Jim Kinney wrote: > More hardware is (almost) ALWAYS a good thing!! > > When I did the APS 7 school project, a single Proliant DL385 G1 was > used for 100 clients. two dual core Opteron and 8 GB RAM per > application server plus a separate RAID5 SAS drive system for /home. > See here for some specs: > Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools > <%20http://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools> > > The only issues we really hit was flash eating up all resources (as > flash is so good at doing) when 3-4 classrooms would all hit the same > web pages with a zillion flash blinkies all over. Streaming flash > video was a nightmare. This was before local apps were developed. > > You don't specify RAM for the newly donated machines so I can't offer > advice on specific designs. But you appear to have a powerful enough > stack of servers in the donated batch to be quite successful. I do > suggest to disable hyperthreading in the bios on those Xeons as cache > thrashing becomes an issue under any load. > > On Tue, Jul 5, 2011 at 12:28 AM, Joseph Bishay > > wrote: > > Hello everyone, > > I hope you are all doing well and had an enjoyable long weekend. > > A few weeks back I received some excellent advice with regards to > setting up a new LTSP network in our new elementary school building. > I had already sourced out the parts and was just about to order them > when a donation arrived at my door! I received 5 servers with the > following specifications: > > 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads > total) running at 3 Ghz. > 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon > (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is > 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. > > So I wanted to mention these machines to see if I can utilize them for > our LTSP network if possible, or should I stick with my original plan > which was using another machine that we have: > > Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives > for /home > > Granted the newly donated machines are all server-grade, with > redundant power supplies, etc as compared to the i5 which is a custom > desktop build. > > We need to power about 65 thin clients in the new building -- and for > many in the building this will be the first foray into Linux (which > they are nervous about) so I want the setup to wow them. > > Thanks very much! > > Joseph > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > > > > -- > -- > James P. Kinney III > > As long as the general population is passive, apathetic, diverted to > consumerism or hatred of the vulnerable, then the powerful can do as > they please, and those who survive will be left to contemplate the > outcome. > - ////2011 Noam Chomsky > > http://heretothereideas.blogspot.com/ > //// > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see -------------- next part -------------- An HTML attachment was scrubbed... URL: From lesmikesell at gmail.com Tue Jul 5 15:16:25 2011 From: lesmikesell at gmail.com (Les Mikesell) Date: Tue, 05 Jul 2011 10:16:25 -0500 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: References: Message-ID: <4E132AC9.8020300@gmail.com> On 7/4/2011 11:28 PM, Joseph Bishay wrote: > Hello everyone, > > I hope you are all doing well and had an enjoyable long weekend. > > A few weeks back I received some excellent advice with regards to > setting up a new LTSP network in our new elementary school building. > I had already sourced out the parts and was just about to order them > when a donation arrived at my door! I received 5 servers with the > following specifications: > > 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads > total) running at 3 Ghz. > 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon > (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is > 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. > > So I wanted to mention these machines to see if I can utilize them for > our LTSP network if possible, or should I stick with my original plan > which was using another machine that we have: > > Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for /home > > Granted the newly donated machines are all server-grade, with > redundant power supplies, etc as compared to the i5 which is a custom > desktop build. > > We need to power about 65 thin clients in the new building -- and for > many in the building this will be the first foray into Linux (which > they are nervous about) so I want the setup to wow them. I've forgotten the topology you need, but that sounds like a nice match for running one box as a home directory and LDAP server and a set of desktop servers each with a smaller number of clients. The desktop servers can either be dedicated per-classroom with a 2-NIC arrangement (simple, but no failover) or a flat network where the dhcp service balances the connections (but you'd have more bandwidth contention). If you do it right the desktop servers would all be interchangeable and even in the 2-NIC scenario you could keep one as a spare that could be swapped in to replace any of the others. Not sure if anyone has tried it, but I'd think ClearOS would make a good home directory/LDAP server without much extra setup work, and it could also provide email and web services if you want them. -- Les Mikesell lesmikesell at gmail.com From jobrien at meridian.wednet.edu Tue Jul 5 22:49:23 2011 From: jobrien at meridian.wednet.edu (JOSEPH O'BRIEN) Date: Tue, 5 Jul 2011 15:49:23 -0700 Subject: [K12OSN] Final Matching Challenge: $185 by July 7th, 2011 In-Reply-To: <4E0C63C4.3020901@togami.com> References: <4E0C63C4.3020901@togami.com> Message-ID: Warren, Thanks for all your hard work, put me in for $50. --joe o'brien --Meridian School District --Bellingham WA On Thu, Jun 30, 2011 at 4:53 AM, Warren Togami Jr. wrote: > http://www.youtube.com/watch?v=M6nlsElmEJ0 > Youtube: K12Linux EL6 Tech Demo > > https://www.facebook.com/k12linux.org > Please show your support of K12Linux by following the project on Facebook. > It helps to demonstrate to the global community the diverse geography and > people who benefit from K12Linux. > > https://fedorahosted.org/k12linux/wiki/2011FundDrive > Currently we have pledges of $2,630.79 from 24 Donors in 9 Countries. > > James Bergsten has issued a new matching challenge to the K12Linux > community. > > If four NEW contributors pledge a maximum of $50 each totaling a minimum of > $185 by July 7th, then he will contribute a matching $185 in support of > K12Linux development. This means we will reach our $3,000 goal for the 2011 > year, and this fund drive will be completed. > > Please write to me directly if you would like to make a contribution. > > Thanks, > Warren Togami > warren at togami.com > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From warren at togami.com Wed Jul 6 01:13:48 2011 From: warren at togami.com (Warren Togami Jr.) Date: Tue, 05 Jul 2011 15:13:48 -1000 Subject: [K12OSN] Private Beta: Download Server Down Message-ID: <4E13B6CC.4090403@togami.com> This notice is for K12Linux EL6 Private Beta members. The download server for K12Linux EL6 went down early July 4th. Apparently the RAID controller died. The University has a next business day service contract on the server, so it should theoretically be fixed tomorrow. Warren From joseph.bishay at gmail.com Wed Jul 6 12:30:21 2011 From: joseph.bishay at gmail.com (Joseph Bishay) Date: Wed, 6 Jul 2011 08:30:21 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: <4E13151F.5090304@cmosnetworks.com> References: <4E13151F.5090304@cmosnetworks.com> Message-ID: Good day, Thanks for the fixed link. I certainly will load up the RAM as much as I can in the machines as I test them. With respect to the network cards, I am lucky as these donated machines came with dual NICs on the motherboard plus a PCI-E Intel Dual-NIC card so 4 gigabit NICs total on each. I will spend some time doing some tests to determine how many clients these machines can handle, etc. I wonder is there a benchmark tool I can use to give me a way to compare the different machines' capability? I didn't want to run around logging into the different thin clients and running all the different applications (hmm..maybe I should start a new thread about benchmarking?). Thanks! Joseph On Tue, Jul 5, 2011 at 9:43 AM, Terrell Prude' Jr. wrote: > +1 to Jim's advice.? Unfortunately, the link to the > LTSP_Pilot_for_Atlanta_Public_Schools doesn't seem to work too well in my > mail client (Thunderbird 2.0.0.24-CentOS).? Here's the full URL.? It may get > wrapped, because it's long. > > http://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools > > Note that in this project, in addition to lots of DRAM, Jim used a 4 or 6 > (not sure which) GB network pipe to the thin clients.? He also had four full > cores at 2.6GHz, and they were Opterons, which are not exactly slow in the > first place. > > --TP > > Jim Kinney wrote: > > More hardware is (almost) ALWAYS a good thing!! > > When I did the APS 7 school project, a single Proliant DL385 G1 was used for > 100 clients. two dual core Opteron and 8 GB RAM per application server plus > a separate RAID5 SAS drive system for /home. See here for some specs: > Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools > > The only issues we really hit was flash eating up all resources (as flash is > so good at doing) when 3-4 classrooms would all hit the same web pages with > a zillion flash blinkies all over. Streaming flash video was a nightmare. > This was before local apps were developed. > > You don't specify RAM for the newly donated machines so I can't offer advice > on specific designs. But you appear to have a powerful enough stack of > servers in the donated batch to be quite successful. I do suggest to disable > hyperthreading in the bios on those Xeons as cache thrashing becomes an > issue under any load. > > On Tue, Jul 5, 2011 at 12:28 AM, Joseph Bishay > wrote: >> >> Hello everyone, >> >> I hope you are all doing well and had an enjoyable long weekend. >> >> A few weeks back I received some excellent advice with regards to >> setting up a new LTSP network in our new elementary school building. >> I had already sourced out the parts and was just about to order them >> when a donation arrived at my door! ?I received 5 servers with the >> following specifications: >> >> 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads >> total) running at 3 Ghz. >> 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon >> (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is >> 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. >> >> So I wanted to mention these machines to see if I can utilize them for >> our LTSP network if possible, or should I stick with my original plan >> which was using another machine that we have: >> >> Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for >> /home >> >> Granted the newly donated machines are all server-grade, with >> redundant power supplies, etc as compared to the i5 which is a custom >> desktop build. >> >> We need to power about 65 thin clients in the new building -- and for >> many in the building this will be the first foray into Linux (which >> they are nervous about) so I want the setup to wow them. >> >> Thanks very much! >> >> Joseph >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see > > > > -- > -- > James P. Kinney III > > As long as the general population is passive, apathetic, diverted to > consumerism or hatred of the vulnerable, then the powerful can do as they > please, and those who survive will be left to contemplate the outcome. > - 2011 Noam Chomsky > > http://heretothereideas.blogspot.com/ > > ________________________________ > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From microman at cmosnetworks.com Wed Jul 6 14:24:41 2011 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Wed, 06 Jul 2011 10:24:41 -0400 Subject: [K12OSN] New Building's LTSP Server -- NEW WRINKLE In-Reply-To: References: <4E13151F.5090304@cmosnetworks.com> Message-ID: <4E147029.4060403@cmosnetworks.com> One good benchmark would be to fire up a bunch of simultaneous TuxType and/or TuxMath sessions until things start slowing down. This'll test your real-world network throughput. Another would require the help of the kids, but it would be easy. Since Firefox can be a DRAM hog, have the kids sit at a bunch of thin clients, and the top three who can surf to the most Web sites gets extra-credit, a chocolate bar, or whatever. While the kids are doing this, check out not just CPU, but also your DRAM and swap space usage. The more kids doing it, the better. Three very important questions: 1.) Do you have a switch that supports multi-linked ("ganged") interfaces? 2.) Are the kids expected to use these Flash-infected "edu" Web sites, e. g. Tumblebooks? 3.) Will this computer lab be doing streaming video? --TP Joseph Bishay wrote: > Good day, > > Thanks for the fixed link. > > I certainly will load up the RAM as much as I can in the machines as I > test them. With respect to the network cards, I am lucky as these > donated machines came with dual NICs on the motherboard plus a PCI-E > Intel Dual-NIC card so 4 gigabit NICs total on each. > > I will spend some time doing some tests to determine how many clients > these machines can handle, etc. I wonder is there a benchmark tool I > can use to give me a way to compare the different machines' > capability? I didn't want to run around logging into the different > thin clients and running all the different applications (hmm..maybe I > should start a new thread about benchmarking?). > > Thanks! > Joseph > > On Tue, Jul 5, 2011 at 9:43 AM, Terrell Prude' Jr. > wrote: > >> +1 to Jim's advice. Unfortunately, the link to the >> LTSP_Pilot_for_Atlanta_Public_Schools doesn't seem to work too well in my >> mail client (Thunderbird 2.0.0.24-CentOS). Here's the full URL. It may get >> wrapped, because it's long. >> >> http://sourceforge.net/apps/mediawiki/ltsp/index.php?title=Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools >> >> Note that in this project, in addition to lots of DRAM, Jim used a 4 or 6 >> (not sure which) GB network pipe to the thin clients. He also had four full >> cores at 2.6GHz, and they were Opterons, which are not exactly slow in the >> first place. >> >> --TP >> >> Jim Kinney wrote: >> >> More hardware is (almost) ALWAYS a good thing!! >> >> When I did the APS 7 school project, a single Proliant DL385 G1 was used for >> 100 clients. two dual core Opteron and 8 GB RAM per application server plus >> a separate RAID5 SAS drive system for /home. See here for some specs: >> Ltsp_SuccessStories#Local_Net_Solutions_installs_7_school_LTSP_pilot_for_Atlanta_Public_Schools >> >> The only issues we really hit was flash eating up all resources (as flash is >> so good at doing) when 3-4 classrooms would all hit the same web pages with >> a zillion flash blinkies all over. Streaming flash video was a nightmare. >> This was before local apps were developed. >> >> You don't specify RAM for the newly donated machines so I can't offer advice >> on specific designs. But you appear to have a powerful enough stack of >> servers in the donated batch to be quite successful. I do suggest to disable >> hyperthreading in the bios on those Xeons as cache thrashing becomes an >> issue under any load. >> >> On Tue, Jul 5, 2011 at 12:28 AM, Joseph Bishay >> wrote: >> >>> Hello everyone, >>> >>> I hope you are all doing well and had an enjoyable long weekend. >>> >>> A few weeks back I received some excellent advice with regards to >>> setting up a new LTSP network in our new elementary school building. >>> I had already sourced out the parts and was just about to order them >>> when a donation arrived at my door! I received 5 servers with the >>> following specifications: >>> >>> 1) One Proliant DL580 G3 4U rackmount server (2 Dual-Xeon (4 threads >>> total) running at 3 Ghz. >>> 2) FOUR Super p4DP8-G2 2U rackmount servers (Each has 2 Dual-core Xeon >>> (4 threads total) running at 2.40 Ghz, 512 KB cache, 4 GB RAM (max is >>> 64 GB) with Adaptec 2010s RAID controller and hot-swappable drives. >>> >>> So I wanted to mention these machines to see if I can utilize them for >>> our LTSP network if possible, or should I stick with my original plan >>> which was using another machine that we have: >>> >>> Intel i5 with 12 GB RAM, PCI-E SSD boot drive, Raid 1 SATA drives for >>> /home >>> >>> Granted the newly donated machines are all server-grade, with >>> redundant power supplies, etc as compared to the i5 which is a custom >>> desktop build. >>> >>> We need to power about 65 thin clients in the new building -- and for >>> many in the building this will be the first foray into Linux (which >>> they are nervous about) so I want the setup to wow them. >>> >>> Thanks very much! >>> >>> Joseph >>> >>> _______________________________________________ >>> K12OSN mailing list >>> K12OSN at redhat.com >>> https://www.redhat.com/mailman/listinfo/k12osn >>> For more info see >>> >> >> -- >> -- >> James P. Kinney III >> >> As long as the general population is passive, apathetic, diverted to >> consumerism or hatred of the vulnerable, then the powerful can do as they >> please, and those who survive will be left to contemplate the outcome. >> - 2011 Noam Chomsky >> >> http://heretothereideas.blogspot.com/ >> >> ________________________________ >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> >> _______________________________________________ >> K12OSN mailing list >> K12OSN at redhat.com >> https://www.redhat.com/mailman/listinfo/k12osn >> For more info see >> >> > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > -------------- next part -------------- An HTML attachment was scrubbed... URL: From warren at togami.com Thu Jul 7 02:45:50 2011 From: warren at togami.com (Warren Togami Jr.) Date: Wed, 06 Jul 2011 16:45:50 -1000 Subject: [K12OSN] Thanks to 2011 Fund Drive Donors Message-ID: <4E151DDE.8000800@togami.com> https://fedorahosted.org/k12linux/wiki/2011FundDrive#Thanksto2011FundDriveDonors I have listed all donors of the 2011 Fund Drive. If I have received money, you should be listed. I have errors in my records, so please contact me privately if you sent your donation but you are not listed. I didn't know where some of the USA donors live. Please contact me directly if you would like to make any corrections to names, links, locations, or to change the credit to your company or school. https://www.facebook.com/k12linux.org Follow K12Linux News on Facebook, click "Like" https://www.facebook.com/feeds/page.php?id=126118240801359&format=rss20 Follow K12Linux News via RSS Warren Togami warren at togami.com From warren at togami.com Thu Jul 7 03:17:49 2011 From: warren at togami.com (Warren Togami Jr.) Date: Wed, 06 Jul 2011 17:17:49 -1000 Subject: [K12OSN] Thanks to 2011 Fund Drive Donors In-Reply-To: <4E151DDE.8000800@togami.com> References: <4E151DDE.8000800@togami.com> Message-ID: <4E15255D.7040508@togami.com> On 7/6/2011 4:45 PM, Warren Togami Jr. wrote: > https://fedorahosted.org/k12linux/wiki/2011FundDrive#Thanksto2011FundDriveDonors > > I have listed all donors of the 2011 Fund Drive. If I have received > money, you should be listed. I have errors in my records, so please I meant "I *may* have errors in my records" but probably not. In any case please contact me directly if you have corrections. =) Warren From Steven at simplycircus.com Sun Jul 10 23:08:55 2011 From: Steven at simplycircus.com (Steven Santos) Date: Sun, 10 Jul 2011 19:08:55 -0400 Subject: [K12OSN] Centros 6 Message-ID: http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.0 --- Steven Santos Director P: 617-527-0667 F: 617-934-1870 E: Steven at SimplyCircus.com Simply Circus, Inc. 86 Los Angeles Street Newton, MA 02462 -------------- next part -------------- An HTML attachment was scrubbed... URL: From microman at cmosnetworks.com Mon Jul 11 03:13:00 2011 From: microman at cmosnetworks.com (Terrell Prude' Jr.) Date: Sun, 10 Jul 2011 23:13:00 -0400 Subject: [K12OSN] Centros 6 In-Reply-To: References: Message-ID: <4E1A6A3C.7000908@cmosnetworks.com> YEE-HA!! This is good news, indeed! Downloading this now. Please, folks, if you can, use Bittorrent so as not to overload the servers. --TP Steven Santos wrote: > http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.0 > --- > Steven Santos > Director > P: 617-527-0667 > F: 617-934-1870 > E: Steven at SimplyCircus.com > > Simply Circus, Inc. > 86 Los Angeles Street > Newton, MA 02462 > > ------------------------------------------------------------------------ > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From cisna-barry at wc235.k12.il.us Thu Jul 14 13:45:16 2011 From: cisna-barry at wc235.k12.il.us (Barry Cisna) Date: Thu, 14 Jul 2011 08:45:16 -0500 Subject: [K12OSN] web browser crashing Message-ID: <1310651116.6997.17.camel@hi2.wc235.k12.il.us> Hello All, Wanted to get feedback on if anyone has found a thin client that can run a web browser that NEVER crashes? It seems that the web browser crashing has no effect as to what the version number is of FF or even Konquer,etc. As long as this has been happening, I am guessing this is just one of those snaffoo's," you just have to live with " running a TC scenario? Anyone have a rock solid solution? Thanks, Barry From jan at recreatie-zorg.nl Thu Jul 14 14:53:06 2011 From: jan at recreatie-zorg.nl (Jan Middelkoop) Date: Thu, 14 Jul 2011 16:53:06 +0200 Subject: [K12OSN] web browser crashing In-Reply-To: <1310651116.6997.17.camel@hi2.wc235.k12.il.us> References: <1310651116.6997.17.camel@hi2.wc235.k12.il.us> Message-ID: <4E1F02D2.7090702@recreatie-zorg.nl> Hi, My first guess would be that your thin client runs out of memory. Either way, running firefox from an xterm and seeing what error messages it spits out when it crashes, will help you a lot in finding the problem. Kindest regards, Jan Middelkoop ICT manager Recreatie& Zorg Groep Website: http://www.recreatie-zorg.nl/ E-mail: jan at recreatie-zorg.nl Telephone: +31 10 714 2297 Op 14-7-2011 15:45, Barry Cisna schreef: > Hello All, > > Wanted to get feedback on if anyone has found a thin client that can run > a web browser that NEVER crashes? > It seems that the web browser crashing has no effect as to what the > version number is of FF or even Konquer,etc. > As long as this has been happening, I am guessing this is just one of > those snaffoo's," you just have to live with " running a TC scenario? > Anyone have a rock solid solution? > > Thanks, > Barry > > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see From carl at snarlnet.com Mon Jul 25 21:27:37 2011 From: carl at snarlnet.com (Carl Keil) Date: Mon, 25 Jul 2011 14:27:37 -0700 Subject: [K12OSN] What repos should I use and how should I change them? Message-ID: <4E2DDFC9.6010806@snarlnet.com> Hey, I'm starting to have issues with dependencies for things like php, where, when I run it in certain ways I get messages that certain modules are not the right version for the version of php I'm running. I have no idea what else might be mismatched beyond PHP. From this: > [root at kitkat ~]# rpm -qa \*-release\* > centos-release-5-6.el5.centos.1 > k12ltsp-release-5.0.0EL-0.2 > adobe-release-i386-1.0-1 > atomic-release-1.0-13.el5.art > centos-release-notes-5.6-0 It looks to me like the k12ltsp repo is for version 5.0, but my kernel, etc. is for 5.6. Am I right that I have a mismatch? How should I make sure this is all working correctly together? I don't even use this server for thin clients anymore, but it started off that way, so I could ditch k12ltsp updates all together if there's a safe way to do that. Now it's basically a Samba/Mythtv server for my house with a LAMP stack for web development. Thanks so much, ck From k12ltsp at rwcinc.net Wed Jul 27 03:25:50 2011 From: k12ltsp at rwcinc.net (Patrick Fleming) Date: Tue, 26 Jul 2011 20:25:50 -0700 Subject: [K12OSN] What repos should I use and how should I change them? In-Reply-To: <4E2DDFC9.6010806@snarlnet.com> References: <4E2DDFC9.6010806@snarlnet.com> Message-ID: <4E2F853E.1080206@rwcinc.net> You should be able to modify the repos that you are using. Uninstall k12ltsp-release. I've had mismatches that I had to force install packages to overcome when moving from k12ltsp(Fedora) based packages to CentOS based packages. One package at a time is what it takes sometimes. On 07/25/11 14:27, Carl Keil wrote: > Hey, > > I'm starting to have issues with dependencies for things like php, > where, when I run it in certain ways I get messages that certain modules > are not the right version for the version of php I'm running. I have no > idea what else might be mismatched beyond PHP. > > From this: >> [root at kitkat ~]# rpm -qa \*-release\* >> centos-release-5-6.el5.centos.1 >> k12ltsp-release-5.0.0EL-0.2 >> adobe-release-i386-1.0-1 >> atomic-release-1.0-13.el5.art >> centos-release-notes-5.6-0 > It looks to me like the k12ltsp repo is for version 5.0, but my kernel, > etc. is for 5.6. Am I right that I have a mismatch? How should I make > sure this is all working correctly together? I don't even use this > server for thin clients anymore, but it started off that way, so I could > ditch k12ltsp updates all together if there's a safe way to do that. > Now it's basically a Samba/Mythtv server for my house with a LAMP stack > for web development. > > Thanks so much, > > ck > > _______________________________________________ > K12OSN mailing list > K12OSN at redhat.com > https://www.redhat.com/mailman/listinfo/k12osn > For more info see > From atul.bairagi at gmail.com Wed Jul 27 05:35:57 2011 From: atul.bairagi at gmail.com (Atul Bairagi) Date: Wed, 27 Jul 2011 05:35:57 +0000 (UTC) Subject: [K12OSN] Invitation to connect on LinkedIn Message-ID: <402168270.587805.1311744957155.JavaMail.app@ela4-bed33.prod> LinkedIn ------------ Support, I'd like to add you to my professional network on LinkedIn. - Atul Atul Bairagi Admin at Rescue Mode Infotech Nasik Area, India Confirm that you know Atul Bairagi https://www.linkedin.com/e/4uridb-gqlv2uow-v/isd/3667508164/jHUB4FgS/ -- (c) 2011, LinkedIn Corporation -------------- next part -------------- An HTML attachment was scrubbed... URL: From warren at togami.com Fri Jul 29 11:08:05 2011 From: warren at togami.com (Warren Togami Jr.) Date: Fri, 29 Jul 2011 01:08:05 -1000 Subject: [K12OSN] K12Linux EL6 Language/Keyboard Configuration Message-ID: <4E329495.2010504@togami.com> Hey folks, Since donations came from 10 countries that speak many different languages, I have been focusing on fixing the LDM login screen and language/keyboard selection. http://people.fedoraproject.org/~wtogami/archive/2011/k12linux-language-config.png I made some progress fixing the configuration of a default language for all thin clients. However, I am currently lacking hardware in order to test non-US layout keyboards. Any private beta members with a non-US keyboard can help me test this? Hopefully with this and a few minor issues fixed, we should be ready for Public Beta soon. Warren