Re: great big gobs of RAM and piles of cores to boot
Just an FYI, I've experienced some unpleasant problems with local serial consoles breaking with Ubuntu Hardy under Xen 3.2 (xen-tools debootstrap). It may have a lot to do with the Debian Lenny host system I was using though. If it's certified by Canonical and you can get support you should be fine on the distro front. I think your most worrying concern should be the xen network bridges. Eric Alan Johnson wrote: On Tue, Sep 8, 2009 at 6:33 PM, Eric Stein t...@des.truct.org mailto:t...@des.truct.org wrote: What is Unbuntu Hardy server going to be running as? Dom0 or DomU? Both? Both. Probably one or 2 Jaunty guests as well. If DomU, how are you planning to bootstrap? I forget the default in Ubuntu xen-tools, but dbootstrap perhaps? I typically make some template images and copy them around, editing config, so I forget the boot strap options after a bit. What CPUs are you racking? By racking you mean putting in the rack? If so, these are Opterons. 8000 series in the 685s and 2435s in the 465s, if I get any of those. -- Alan Johnson a...@datdec.com mailto:a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On 09/08/2009 05:01 PM, Alan Johnson wrote: I'm spec-ing some blades for virtualization of our production systems and I just want to check with the masses (that's you all) about any known issues with Linux, Xen, or Ubuntu Hardy Server when it comes to up to 24 cores and as much as 256GB of RAM on the host. These are HP C-class blades, BL685s and BL465s to be exact. How many DomU's? At some point you might stretch the Xen network bridge (before you have any core# issues). -Bill -- Bill McGonigle, Owner BFC Computing, LLC http://bfccomputing.com/ Telephone: +1.603.448.4440 Email, IM, VOIP: b...@bfccomputing.com VCard: http://bfccomputing.com/vcard/bill.vcf Social networks: bill_mcgonigle/bill.mcgonigle ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On Wed, Sep 9, 2009 at 1:23 PM, Bill McGonigle b...@bfccomputing.comwrote: How many DomU's? At some point you might stretch the Xen network bridge (before you have any core# issues). Good thought, but I don't think I'll have an issue there. I'm looking at less than 50 DomUs spread across 3-5 Dom0s. Still, it would be good to tuck that limit in the back of my head. Do you have it handy, or should I look it up? -- Alan Johnson a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On Tue, Sep 8, 2009 at 5:01 PM, Alan Johnsona...@datdec.com wrote: I just want to check with the masses ... about any known issues ... ... up to 24 cores and as much as 256GB of RAM on the host. I can't answer your question directly (hopefully others here can speak to it), but I wanted to point out some additional approaches which I would suggest pursuing in parallel to the community: Contact the hardware manufacturer and make sure you'll be supported. For the money you'll be spending, they should be willing to help you pre-sales. Of course, vendors are not to be trusted pre-sales, but getting their story is still a good idea. Check with Canonical (the company behind Ubuntu) for their take. If needed, I would think a phone consult fee would be easy to arrange, for a project of this size. -- Ben ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
Have you seen http://www.hp.com/go/communitylinux ? -marc On Tue, Sep 8, 2009 at 5:01 PM, Alan Johnson a...@datdec.com wrote: I'm spec-ing some blades for virtualization of our production systems and I just want to check with the masses (that's you all) about any known issues with Linux, Xen, or Ubuntu Hardy Server when it comes to up to 24 cores and as much as 256GB of RAM on the host. These are HP C-class blades, BL685s and BL465s to be exact. I have no reason to think I will have any issues, but I'm just paranoid about spending this much of my employer's money. I've have plenty of experience with these technologies on various lesser boxes and have no issues, but without having actually installed this stuff myself on machines of quite this scale... =) Sorry to waste all your time with my wussiness. I appreciate any advise and will happily accept any abuse off-list. ;-p [For you Caddy Shack fans out there, I rearranged the words in the subject to match the rhythm of great big gobs of greasy grimy golfer guts.] -- Alan Johnson a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ -- Marc Nozell (m...@nozell.com) http://www.nozell.com/blog ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
What is Unbuntu Hardy server going to be running as? Dom0 or DomU? Both? If DomU, how are you planning to bootstrap? What CPUs are you racking? Eric Stein Alan Johnson wrote: I'm spec-ing some blades for virtualization of our production systems and I just want to check with the masses (that's you all) about any known issues with Linux, Xen, or Ubuntu Hardy Server when it comes to up to 24 cores and as much as 256GB of RAM on the host. These are HP C-class blades, BL685s and BL465s to be exact. I have no reason to think I will have any issues, but I'm just paranoid about spending this much of my employer's money. I've have plenty of experience with these technologies on various lesser boxes and have no issues, but without having actually installed this stuff myself on machines of quite this scale... =) Sorry to waste all your time with my wussiness. I appreciate any advise and will happily accept any abuse off-list. ;-p [For you Caddy Shack fans out there, I rearranged the words in the subject to match the rhythm of great big gobs of greasy grimy golfer guts.] -- Alan Johnson a...@datdec.com mailto:a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On Tue, Sep 8, 2009 at 6:33 PM, Eric Stein t...@des.truct.org wrote: What is Unbuntu Hardy server going to be running as? Dom0 or DomU? Both? Both. Probably one or 2 Jaunty guests as well. If DomU, how are you planning to bootstrap? I forget the default in Ubuntu xen-tools, but dbootstrap perhaps? I typically make some template images and copy them around, editing config, so I forget the boot strap options after a bit. What CPUs are you racking? By racking you mean putting in the rack? If so, these are Opterons. 8000 series in the 685s and 2435s in the 465s, if I get any of those. -- Alan Johnson a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On Tue, Sep 8, 2009 at 7:04 PM, Marc Nozell (m...@nozell.com) noz...@gmail.com wrote: Have you seen http://www.hp.com/go/communitylinux ? From the Ubuntu link on that page: Ubuntu Server Edition is now certified by Canonical for use on HP ProLiant servers, including the latest HP ProLiant G6 servers. Canonical Labs performs a series of rigorous tests leading up to certification, giving customers the confidence that Ubuntu Server Edition runs well on HP ProLiant servers. That probably covers it, but if any one knows of any specific pitfalls, I'd certainly be glad to hear it. =) Thanks! -- Alan Johnson a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
Re: great big gobs of RAM and piles of cores to boot
On Tue, Sep 8, 2009 at 6:17 PM, Ben Scott dragonh...@gmail.com wrote: Contact the hardware manufacturer and make sure you'll be supported. For the money you'll be spending, they should be willing to help you pre-sales. Of course, vendors are not to be trusted pre-sales, but getting their story is still a good idea. Yep, check that one. Looking for more opinions here. Of course, neigher PC Connection nor HP officially support Ubuntu and are happy to try to sell you some windows licenses instead. ;-) Check with Canonical (the company behind Ubuntu) for their take. If needed, I would think a phone consult fee would be easy to arrange, for a project of this size. Good thought. I'm not sure I'm so paranoid as to get some authorization on some pay-answers from Canonical, but I didn't think of their forums for some reason. -- Alan Johnson a...@datdec.com ___ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
