I am wondering about the release matrix for Lustre vs. RHEL/CentOS. =============================================Lustre lustre.org whamcloud Release ------------ ------------ el5 el6 el5 el6 ---------------------------------------------- 1.8.7 client yes no yes yes 1.8.7 server yes no yes no 2.0 (discontinued) n/a 2.1 client n/a yes yes 2.1 server n/a yes yes ============================================= http://downloads.lustre.org/public/lustre/v1.8/lustre_1.8.7/ http://downloads.whamcloud.com/public/lustre/lustre-1.8.7-wc1/el6/ http://downloads.whamcloud.com/public/lustre/lustre-2.1.0/ It appears that the current recommended production release is Lustre-1.8, and, since there is no server for el6 I take that as a strong hint to stick to el5. Is there some more information public? I was planning to upgrade a cluster to el6. Ideally, I''d like to have servers and user nodes all on the same major OS release. However, stability will trump that. Best, Michael
On 2012-01-05, at 3:29 AM, Michael Sternberg wrote:> I am wondering about the release matrix for Lustre vs. RHEL/CentOS. > > =============================================> Lustre lustre.org whamcloud > Release ------------ ------------ > el5 el6 el5 el6 > ---------------------------------------------- > 1.8.7 client yes no yes yes > 1.8.7 server yes no yes no > > 2.0 (discontinued) n/a > > 2.1 client n/a yes yes > 2.1 server n/a yes yes > =============================================> > http://downloads.lustre.org/public/lustre/v1.8/lustre_1.8.7/ > http://downloads.whamcloud.com/public/lustre/lustre-1.8.7-wc1/el6/ > http://downloads.whamcloud.com/public/lustre/lustre-2.1.0/ > > > It appears that the current recommended production release is Lustre-1.8, and, since there is no server for el6 I take that as a strong hint to stick to el5.For new deployments the recommended version is 2.1.0 with RHEL6.1. We are starting work on a 2.1.1 maintenance release for the spring.> Is there some more information public? I was planning to upgrade a cluster to el6. Ideally, I''d like to have servers and user nodes all on the same major OS release. However, stability will trump that.Cheers, Andreas -- Andreas Dilger Whamcloud, Inc. Principal Engineer http://www.whamcloud.com/
inline On 12-01-05 9:21 AM, Andreas Dilger wrote:> On 2012-01-05, at 3:29 AM, Michael Sternberg wrote: >> I am wondering about the release matrix for Lustre vs. RHEL/CentOS. >> >> =============================================>> Lustre lustre.org whamcloud >> Release ------------ ------------ >> el5 el6 el5 el6 >> ---------------------------------------------- >> 1.8.7 client yes no yes yes >> 1.8.7 server yes no yes no >> >> 2.0 (discontinued) n/a >> >> 2.1 client n/a yes yes >> 2.1 server n/a yes yes >> =============================================>> >> http://downloads.lustre.org/public/lustre/v1.8/lustre_1.8.7/ >> http://downloads.whamcloud.com/public/lustre/lustre-1.8.7-wc1/el6/ >> http://downloads.whamcloud.com/public/lustre/lustre-2.1.0/ >> >> >> It appears that the current recommended production release is Lustre-1.8, and, since there is no server for el6 I take that as a strong hint to stick to el5. > For new deployments the recommended version is 2.1.0 with RHEL6.1. We are > starting work on a 2.1.1 maintenance release for the spring.While it is not often that I would disagree with Andreas, I would say that the answer on this point depends upon your timing. Right now, if stability is your primary driver (and it sounds like it is) then I would recommend 1.8.7-wc1. The early feedback from 2.1 is very encouraging, but I think that we need a little more production feedback before we could confidently assert that 2.1.x is the default option.> >> Is there some more information public? I was planning to upgrade a cluster to el6. Ideally, I''d like to have servers and user nodes all on the same major OS release. However, stability will trump that. > > Cheers, Andreas > -- > Andreas Dilger Whamcloud, Inc. > Principal Engineer http://www.whamcloud.com/ > > > > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss >-- Peter Jones Whamcloud, Inc. www.whamcloud.com
On Jan 5, 2012, at 12:12 PM, Peter Jones wrote:> On 12-01-05 9:21 AM, Andreas Dilger wrote:...>> For new deployments the recommended version is 2.1.0 with RHEL6.1. >> We are >> starting work on a 2.1.1 maintenance release for the spring. > While it is not often that I would disagree with Andreas, I would say > that the answer on this point depends upon your timing. Right now, if > stability is your primary driver (and it sounds like it is) then I > would > recommend 1.8.7-wc1. The early feedback from 2.1 is very encouraging, > but I think that we need a little more production feedback before we > could confidently assert that 2.1.x is the default option.Peter, if by some reason (features) we need to stick with 2.1.x and rebuild 2.1.0 with 2.1.1 patches to get more stability if needed, is there - separate branch for it (2.1.1) - JIRA tracker for bug fixes for 2.1.1 release Alex.
Alex There will be a note going out to wc-discuss early next week about 2.1.1. The focus is on 2.2 this week with the imminent feature freeze. Regards Peter On 12-01-05 12:18 PM, Alex Kulyavtsev wrote:> On Jan 5, 2012, at 12:12 PM, Peter Jones wrote: >> On 12-01-05 9:21 AM, Andreas Dilger wrote: > ... >>> For new deployments the recommended version is 2.1.0 with RHEL6.1. >>> We are >>> starting work on a 2.1.1 maintenance release for the spring. >> While it is not often that I would disagree with Andreas, I would say >> that the answer on this point depends upon your timing. Right now, if >> stability is your primary driver (and it sounds like it is) then I would >> recommend 1.8.7-wc1. The early feedback from 2.1 is very encouraging, >> but I think that we need a little more production feedback before we >> could confidently assert that 2.1.x is the default option. > > Peter, > if by some reason (features) we need to stick with 2.1.x and rebuild > 2.1.0 with 2.1.1 patches to get more stability if needed, > is there > - separate branch for it (2.1.1) > - JIRA tracker for bug fixes for 2.1.1 release > > Alex. > >-- Peter Jones Whamcloud, Inc. www.whamcloud.com
Peter, Andreas, Thank you both for your assessment. I decided to proceed conservatively with 1.8.7 on el5. I''ll take the opportunity to get more comfortable with 2.x on el6 in a test system on the earlier server nodes. Best, Michael On January 5, 2012, at 12:12 , Peter Jones wrote:> inline > > On 12-01-05 9:21 AM, Andreas Dilger wrote: >> On 2012-01-05, at 3:29 AM, Michael Sternberg wrote: >>> I am wondering about the release matrix for Lustre vs. RHEL/CentOS. >>> [..] >>> It appears that the current recommended production release is Lustre-1.8, and, since there is no server for el6 I take that as a strong hint to stick to el5. >> For new deployments the recommended version is 2.1.0 with RHEL6.1. We are >> starting work on a 2.1.1 maintenance release for the spring. > While it is not often that I would disagree with Andreas, I would say > that the answer on this point depends upon your timing. Right now, if > stability is your primary driver (and it sounds like it is) then I would > recommend 1.8.7-wc1. The early feedback from 2.1 is very encouraging, > but I think that we need a little more production feedback before we > could confidently assert that 2.1.x is the default option. >> >>> Is there some more information public? I was planning to upgrade a cluster to el6. Ideally, I''d like to have servers and user nodes all on the same major OS release. However, stability will trump that.