I agree that there are still sites running Lustre 1.8.x in production, but I don’t think that it is a reasonable assumption that 2.7 or newer isn’t safe yet – I think that most vendors (including your employer 😉 ) are shipping something based on 2.7 or newer. My gut feeling is that if the usage survey was conducted today rather than six months ago that 2.10.x would come out as the clear leader (rather than being tied with 2.5.x). It’s also still possible to get support for older releases, but the matrix was “cleaned up” recently because the volume of information there made it hard for people to find the most current info, which is what most visitors were looking for. I’m fine to alter it again if there is demand to do so.
From: lustre-discuss <[email protected]> on behalf of Patrick Farrell <[email protected]> Date: Wednesday, August 15, 2018 at 8:07 AM To: "Latham, Robert J." <[email protected]>, "[email protected]" <[email protected]> Subject: Re: [lustre-discuss] oldest lustre deployment? Oh, yes. Absolutely. Many sites are running 2.5, a few are evening running 1.8. It's not "officially supported", but that's all those matrices indicate. Sorry, assuming 2.7 or newer isn't safe yet. 2.5 may still be the largest single release by usage. Check these slides for an update from this year on what's being run: http://cdn.opensfs.org/wp-content/uploads/2018/04/Jones-Community_Release_Update_LUG_2018.pdf - Patrick ________________________________ From: lustre-discuss <[email protected]> on behalf of Latham, Robert J. <[email protected]> Sent: Wednesday, August 15, 2018 9:40:31 AM To: [email protected] Subject: [lustre-discuss] oldest lustre deployment? I am looking at the patch to ROMIO to support the new Progressive File Layout feature: https://jira.whamcloud.com/browse/LU-9657 and https://review.whamcloud.com/#/c/27869/10 This change greatly reworks ROIMIO's support for determining striping count and stripe size. I'm all for using the 'llapi_layout' routines instead of bare ioctl() calls, but llapi_layout did not show up until 2.7 I think. Is there any chance that some enviroment out there is still running a lustre from 2014 or earlier? Nothing before 2.10 shows up in the "community matrix" https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix but I do see some fairly old versions in the "intel releases" https://wiki.whamcloud.com/display/PUB/Lustre+Support+Matrix+-+Intel+Releases ==rob
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