It is one device. We have 2 luns for 2 different ocfs2 filesystems mounted on all servers (6) in the cluster. It is presented via fiber channel from our SAN.
I think the issue is that if you run fstrim from all servers which are mounting the same ocfs2 filesystem at the same time, bad stuff happens. We are using multipth: WWPN-THINGEE-HERE dm-3 TEGILE,INTELLIFLASH size=2.0T features='1 queue_if_no_path' hwhandler='1 alua' wp=rw |-+- policy='round-robin 0' prio=50 status=active | |- 0:0:0:16 sdb 8:16 active ready running | `- 1:0:0:16 sdf 8:80 active ready running `-+- policy='round-robin 0' prio=1 status=enabled |- 0:0:1:16 sdd 8:48 active ready running `- 1:0:1:16 sdh 8:112 active ready running WWPN-THINGEE-HERE dm-2 TEGILE,INTELLIFLASH size=2.0T features='1 queue_if_no_path' hwhandler='1 alua' wp=rw |-+- policy='round-robin 0' prio=50 status=active | |- 0:0:1:15 sdc 8:32 active ready running | `- 1:0:1:15 sdg 8:96 active ready running `-+- policy='round-robin 0' prio=1 status=enabled |- 0:0:0:15 sda 8:0 active ready running `- 1:0:0:15 sde 8:64 active ready running -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1681410 Title: fstrim corrupts ocfs2 filesystems when clustered To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1681410/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs