When this issue occurs again, can you run the following command: iostat -mx
..and past the output into the bug. Thanks ** Bug watch added: Github Issue Tracker for ZFS #2934 https://github.com/zfsonlinux/zfs/issues/2934 ** Also affects: zfs via https://github.com/zfsonlinux/zfs/issues/2934 Importance: Unknown Status: Unknown ** Changed in: zfs-linux (Ubuntu) Importance: Undecided => Medium ** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) ** Changed in: zfs-linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654517 Title: ZFS I/O hangs for minutes To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/1654517/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
