[lustre-discuss] which zfs for lustre 2.12.3?

Alexander I Kulyavtsev aik at fnal.gov
Fri Sep 27 11:23:35 PDT 2019


What are plans supporting zfs 0.8.x in lustre 2.12.x ?
2.13 is feature branch and 2.12.x is LTS.


IIRC there was note to have a possibility to enable zfs 0.8 for tests in lustre.

How to enable 0.8.2 (when it will be released) in 2.12.3 ? I guess I will need to rebuild lustre pointing to proper zfs distro. Will it build? Do I need anything else?

I would like to try zfs metadata on SSD vdev on lustre OST.

Best regards, Alex.
________________________________
From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Degremont, Aurelien <degremoa at amazon.com>
Sent: Friday, September 27, 2019 4:52 AM
To: Bernd Melchers <melchers at zedat.fu-berlin.de>; lustre-discuss at lists.lustre.org <lustre-discuss at lists.lustre.org>
Subject: Re: [lustre-discuss] which zfs for lustre 2.12.3?

Hi Bernd,

Lustre is trying to update to support by default ZFS 0.8.1. During the tests of Lustre 2.13 development branch, there was an increase of test failures. Default ZFS version was reverted to 0.7.13 until this is clear if the problem comes from that or something else. Based on that, the official ZFS version for 2.13 is not yet decided and could or could not be 0.8.1.
If you can wait this is sorted out, you will see what's the conclusion.

If you don't want to wait, 0.7.13 is probably the safest choice for now.
Lustre will move to 0.8 eventually anyway. This is just that this could be delayed a bit at short term.


Aurélien

Le 27/09/2019 11:45, « lustre-discuss au nom de Bernd Melchers » <lustre-discuss-bounces at lists.lustre.org au nom de melchers at zedat.fu-berlin.de> a écrit :

    Hi all,
    is there already a recommendation for the zfs-on-linux version for the
    upcoming lustre 2.12.3? zfs 0.8.x includes the spl part of zfs 0.7.x
    and i am not sure how to migrate from 0.7.x to 0.8.x  and if this is the
    right choice...

    Mit freundlichen Grüßen
    Bernd Melchers

    --
    Archiv- und Backup-Service | fab-service at zedat.fu-berlin.de
    Freie Universität Berlin   | Tel. +49-30-838-55905
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