Greetings, (This my second try at getting this post to the list; hope this one goes through ;-) Next week I''ll start installation of our test lustre cluster. If everything goes well it will eventually hold all our data (we have about 350 TB). Would it be unwise to use Centos rather than RHEL? In my pre-tests (running with vmware) it seems to run fine with CentOS 5. Management, however, is concerned. Do they have reason to be? thanks much, JR
CentOS is a de-branded version of Redhat enterprise, so they are effectively binary-compatible. CentOS does not provide commercial support. Our clusters use it exclusively with no issues, and I frequently mix RPMs from both. Klaus ----- Original Message ----- From: lustre-discuss-bounces at lists.lustre.org <lustre-discuss-bounces at lists.lustre.org> To: lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org> Sent: Thu Feb 14 12:37:02 2008 Subject: [Lustre-discuss] Centos 5 with Lustre Greetings, (This my second try at getting this post to the list; hope this one goes through ;-) Next week I''ll start installation of our test lustre cluster. If everything goes well it will eventually hold all our data (we have about 350 TB). Would it be unwise to use Centos rather than RHEL? In my pre-tests (running with vmware) it seems to run fine with CentOS 5. Management, however, is concerned. Do they have reason to be? thanks much, JR _______________________________________________ Lustre-discuss mailing list Lustre-discuss at lists.lustre.org http://lists.lustre.org/mailman/listinfo/lustre-discuss
Your management doesn''t really have reason to be concerned. If something horrific happens to CentOS you could pretty much migrate to RHEL with minimal effort. -Aaron On Feb 14, 2008, at 3:42 PM, Steden Klaus wrote:> > CentOS is a de-branded version of Redhat enterprise, so they are > effectively binary-compatible. CentOS does not provide commercial > support. > > Our clusters use it exclusively with no issues, and I frequently mix > RPMs from both. > > Klaus > > > ----- Original Message ----- > From: lustre-discuss-bounces at lists.lustre.org <lustre-discuss-bounces at lists.lustre.org > > > To: lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org> > Sent: Thu Feb 14 12:37:02 2008 > Subject: [Lustre-discuss] Centos 5 with Lustre > > Greetings, > > (This my second try at getting this post to the list; > hope this one goes through ;-) > > Next week I''ll start installation of our test lustre > cluster. If everything goes well it will eventually > hold all our data (we have about 350 TB). > > Would it be unwise to use Centos rather than RHEL? > > In my pre-tests (running with vmware) it seems to > run fine with CentOS 5. > > Management, however, is concerned. Do they have > reason to be? > > thanks much, > JR > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discussAaron Knister Associate Systems Analyst Center for Ocean-Land-Atmosphere Studies (301) 595-7000 aaron at iges.org
Thanks for the reassurance, guys ;-) JR Aaron Knister wrote:> Your management doesn''t really have reason to be concerned. If something > horrific happens to CentOS you could pretty much migrate to RHEL with > minimal effort. > > -Aaron > > On Feb 14, 2008, at 3:42 PM, Steden Klaus wrote: > >> >> CentOS is a de-branded version of Redhat enterprise, so they are >> effectively binary-compatible. CentOS does not provide commercial >> support. >> >> Our clusters use it exclusively with no issues, and I frequently mix >> RPMs from both. >> >> Klaus
On Thu, 14 Feb 2008, jrs wrote: I have two hpc clusters with centos and lustre and most of my important infrastructure servers like email servers run centos. So far i have no issues really centos specific that the upstream rhel didn''t have and is a stable solution. But if you intend to switch over to rhel with a support contract at some point, i am not so sure it is just a matter of pointing your yum repositories to that of redhat from centos repositories and do an update. It might need a fresh install of rhel. I have only good experiences with centos, their forum is also quite active. But if there will be a tomorrow with no free redhat srpms like suse enterprise linux, redhat gets bought by some other company with different policies and priorities etc etc, who knows what future looks for Centos ! In a university setup i am happy with centos with its compatibility with rhel and stability and no annual subscription fees for updates. But if i was in another situation like government, big businesses etc who can afford to pay for subsciptions with redhat or novell and if software subscriptions like these make a negligible part of the IT budget, i am not so sure i would have still gone with centos and not rhel. In my case in the university job, if centos ceases to exist, i would most likely be a debian fan. Ultimately its your choice and you are responsible for the consequences, good or bad. Hope it helps. Balagopal> Thanks for the reassurance, guys ;-) > > JR > > > Aaron Knister wrote: > > Your management doesn''t really have reason to be concerned. If something > > horrific happens to CentOS you could pretty much migrate to RHEL with > > minimal effort. > > > > -Aaron > > > > On Feb 14, 2008, at 3:42 PM, Steden Klaus wrote: > > > >> > >> CentOS is a de-branded version of Redhat enterprise, so they are > >> effectively binary-compatible. CentOS does not provide commercial > >> support. > >> > >> Our clusters use it exclusively with no issues, and I frequently mix > >> RPMs from both. > >> > >> Klaus > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss >
On Thu, 2008-02-14 at 20:16 -0400, Balagopal Pillai wrote:> I have only good > experiences with centos, their forum is also quite active. But if there > will be a tomorrow with no free redhat srpms like suse enterprise linux,First hit on a Google search for "SLES RPMS" http://opsamericas.com/?p=497 SLED 10 x86_64 architecture source RPMs here http://forgeftp.novell.com/sledsource/SLED-10-SP1-x86_64-srpms/
On Fri, 15 Feb 2008, John Hearns wrote:> > First hit on a Google search for "SLES RPMS" > http://opsamericas.com/?p=497 > > SLED 10 x86_64 architecture source RPMs here > http://forgeftp.novell.com/sledsource/SLED-10-SP1-x86_64-srpms/ >Very nice! I didn''t know that novell released the srpms for enterprise linux for free. How about the updates srpms? It is not viable for an equivalent distribution of centos to exist in the suse world without a timely release of updates srpms too. Normally when redhat releases the security or other updates with public srpms, it appears on the centos mirrors soon after that. Essentially centos user base are all potential redhat customers when they would want to run something in a vendor certified and supported environment like a business critical oracle box for example. Most of these current centos users like myself are ones who would have gone with another stable and free distribution like debian if there was no centos and who can''t afford big linux support fees at the moment (or don''t need that much support from the vendor). On the other hand, with the very good experience with centos over the years, if i have to choose between RHEL and suse in future with offical support contracts, i would most likely choose rhel. So its not all that bad a deal for redhat either, eventhough some of the centos users might be able to afford rhel. Balagopal