[Lustre-devel] Lustre 2.4 Release

White, Cliff cliff.white at intel.com
Thu Jun 20 14:15:25 PDT 2013

From: Indivar Nair <indivar.nair at techterra.in<mailto:indivar.nair at techterra.in>>
Date: Thursday, June 20, 2013 10:38 AM
To: "Dilger, Andreas" <andreas.dilger at intel.com<mailto:andreas.dilger at intel.com>>
Cc: "lustre-devel at lists.lustre.org<mailto:lustre-devel at lists.lustre.org>" <lustre-devel at lists.lustre.org<mailto:lustre-devel at lists.lustre.org>>
Subject: Re: [Lustre-devel] Lustre 2.4 Release

Ok. The diagram seems to suggest that 2.4.0 would be first maintenance release.


So I will be able to make an inplace upgrade from 2.4.0 to 2.4.1 when it is released.
i.e. no re-installation of OS or reformatting OSTs when I move to 2.4.1.
Just upgrading the Lustre Kernel and Lustre Packages to 2.4.1 should do. right?

Yes, that is the meaning of a maintenance release. Any upgrade from Lustre X.Y.N to X.Y.N+1  will not require re-formatting.
However, we track vendor kernel bug fixes in our kernels, so a maintenance release will require a kernel change, but should not impact the OS install otherwise.


Indivar Nair

On Thu, Jun 20, 2013 at 9:54 PM, Dilger, Andreas <andreas.dilger at intel.com<mailto:andreas.dilger at intel.com>> wrote:
On 2013/20/06 6:21 AM, "Indivar Nair" <indivar.nair at techterra.in<mailto:indivar.nair at techterra.in>> wrote:

>Hi ...,
>Lustre 2.4 was supposed to be released as a "Maintenance Release' -
>  https://wiki.hpdd.intel.com/display/PUB/Community+Lustre+Roadmap
>so how come it has been released as a 'Feature Release'?
>  https://wiki.hpdd.intel.com/display/PUB/Lustre+Releases
>Will it be moved to 'Maintenance Release' later?

The 2.4.0 release is one of the 6-month feature releases.
2.4.1 will be the first maintenance release on that branch.

Cheers, Andreas
Andreas Dilger

Lustre Software Architect
Intel High Performance Data Division

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