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  1. Lustre
  2. LU-9772

enable ZFS MMP feature on new zpools

Details

    • Bug
    • Resolution: Fixed
    • Major
    • Lustre 2.10.1, Lustre 2.11.0
    • Lustre 2.10.1, Lustre 2.11.0
    • None
    • 3
    • 9223372036854775807

    Description

      With the ZFS MMP feature landing in 0.7.0-rc5, we should look at enabling this feature for new ZFS pools, if Lustre is formatting the pool or creating a failover OST or MDT dataset there. Originally, I thought this feature would be enabled on all pools, but instead it requires that the multimount property be set on the pool before it is active.

      Similar to how mount_utils_ldiskfs.c enables the mmp feature if failover is enabled on the pool, mount_utils_zfs.c should set the multimount property. I believe that this property would be ignored on ZFS 0.6.5 pools, so it is not harmful to always set it for Lustre filesystems.

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        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. LU-976 Test failure for mmp on ZFS filesystems

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Activity

            [LU-9772] enable ZFS MMP feature on new zpools
            gerrit Gerrit Updater added a comment -

            John L. Hammond (john.hammond@intel.com) merged in patch https://review.whamcloud.com/28652/
            Subject: LU-9772 utils: Enable new ZFS MMP on mkfs
            Project: fs/lustre-release
            Branch: b2_10
            Current Patch Set:
            Commit: f64a4508cdbf5af6c90977b7ab3bf9f103489236

            gerrit Gerrit Updater added a comment - John L. Hammond (john.hammond@intel.com) merged in patch https://review.whamcloud.com/28652/ Subject: LU-9772 utils: Enable new ZFS MMP on mkfs Project: fs/lustre-release Branch: b2_10 Current Patch Set: Commit: f64a4508cdbf5af6c90977b7ab3bf9f103489236
            gerrit Gerrit Updater added a comment -

            Andreas Dilger (andreas.dilger@intel.com) uploaded a new patch: https://review.whamcloud.com/28652
            Subject: LU-9772 utils: Enable new ZFS MMP on mkfs
            Project: fs/lustre-release
            Branch: b2_10
            Current Patch Set: 1
            Commit: 7c712e2c9461bb410e4ce6c2e7c9ced5d75c9d7d

            gerrit Gerrit Updater added a comment - Andreas Dilger (andreas.dilger@intel.com) uploaded a new patch: https://review.whamcloud.com/28652 Subject: LU-9772 utils: Enable new ZFS MMP on mkfs Project: fs/lustre-release Branch: b2_10 Current Patch Set: 1 Commit: 7c712e2c9461bb410e4ce6c2e7c9ced5d75c9d7d
            mdiep Minh Diep added a comment -

            l

            mdiep Minh Diep added a comment - l
            gerrit Gerrit Updater added a comment -

            Oleg Drokin (oleg.drokin@intel.com) merged in patch https://review.whamcloud.com/28051/
            Subject: LU-9772 utils: Enable new ZFS MMP on mkfs
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: 25e1cea871abd3c08dffb06ea62046ad84a822c1

            gerrit Gerrit Updater added a comment - Oleg Drokin (oleg.drokin@intel.com) merged in patch https://review.whamcloud.com/28051/ Subject: LU-9772 utils: Enable new ZFS MMP on mkfs Project: fs/lustre-release Branch: master Current Patch Set: Commit: 25e1cea871abd3c08dffb06ea62046ad84a822c1
            gerrit Gerrit Updater added a comment -

            Nathaniel Clark (nathaniel.l.clark@intel.com) uploaded a new patch: https://review.whamcloud.com/28051
            Subject: LU-9772 utils: Enable new ZFS MMP on mkfs
            Project: fs/lustre-release
            Branch: master
            Current Patch Set: 1
            Commit: 6242cba3740cf3a0d8e8789c278720dc2fee6bce

            gerrit Gerrit Updater added a comment - Nathaniel Clark (nathaniel.l.clark@intel.com) uploaded a new patch: https://review.whamcloud.com/28051 Subject: LU-9772 utils: Enable new ZFS MMP on mkfs Project: fs/lustre-release Branch: master Current Patch Set: 1 Commit: 6242cba3740cf3a0d8e8789c278720dc2fee6bce

            People

              utopiabound Nathaniel Clark
              adilger Andreas Dilger
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              Dates

                Created:
                Updated:
                Resolved: