[Bug 222785] [zfs] show progress of running zfs operations, zpool monitor

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Oct 4 20:38:39 UTC 2017


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222785

            Bug ID: 222785
           Summary: [zfs] show progress of running zfs operations, zpool
                    monitor
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: timf.public at gmail.com

Solaris 11.3 introduced a new zpool subcommand, 'monitor' allowing the user
to monitor the ongoing progress of long-running zfs operations, for example,
scrubs, send/recv and resilver.

More detail on what the Solaris implementation looks like is at:

https://docs.oracle.com/cd/E53394_01/html/E54801/gnheq.html

and here is one example documented in that man page:

# zpool monitor -t resilver 5 4
pool       provider  pctdone  total  speed  timeleft   other
poolA      resilver   10.7    12.0G  37.7M  4m50s      (2/2)
poolB      resilver    7.1    10.0G  31.5M  5m02s      (2/2)
poolC      resilver    1.8    10.0G  42.9M  3m54s      (2/2)
poolA      resilver   13.9    12.0G  38.0M  4m38s      (2/2)
poolB      resilver    9.0    10.0G  30.4M  5m07s      (2/2)
poolC      resilver    5.3    10.0G  41.7M  3m52s      (2/2)
poolA      resilver   14.7    12.0G  36.1M  4m50s      (2/2)
poolB      resilver   10.8    10.0G  29.2M  5m12s      (2/2)
poolC      resilver    7.2    10.0G  41.0M  3m51s      (2/2)
poolA      resilver   14.7    12.0G  32.8M  5m19s      (2/2)
poolB      resilver   10.8    10.0G  29.6M  5m08s      (2/2)
poolC      resilver    7.2    10.0G  40.7M  3m53s      (2/2)


While it's possible to script some of this today on FreeBSD using 
'zpool status -v' output, grepping for the activity that the pool is
performing, it's a little clunky.

It would be pretty useful if OpenZFS had similar functionality.

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