Olaf Faaland 7088545d01 Report duration and error in mmp_history entries
After an MMP write completes, update the relevant mmp_history entry
with the time between submission and completion, and the error
status of the write.

[faaland1@toss3a zfs]$ cat /proc/spl/kstat/zfs/pool/multihost
39 0 0x01 100 8800 69147946270893 72723903122926
id       txg     timestamp  error  duration   mmp_delay    vdev_guid
10607    1166    1518985089 0      138301     637785455    4882...
10608    1166    1518985089 0      136154     635407747    1151...
10609    1166    1518985089 0      803618560  633048078    9740...
10610    1166    1518985090 0      144826     633048078    4882...
10611    1166    1518985090 0      164527     666187671    1151...

Where duration = gethrtime_in_done_fn - gethrtime_at_submission, and
error = zio->io_error.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes 
2018-02-22 15:34:34 -08:00
2018-01-09 11:15:55 -08:00
2018-02-21 13:52:47 -08:00
2018-02-21 12:32:06 -08:00
2018-02-21 12:32:06 -08:00
2018-02-21 12:32:06 -08:00
2017-01-03 11:31:18 -06:00
2017-11-13 09:18:18 -08:00
2014-09-02 14:18:53 -07:00
2018-02-13 14:54:54 -08:00
2017-10-11 16:54:48 -04:00
2017-07-26 10:13:25 -07:00
2008-12-01 14:49:34 -08:00

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ZFS on Linux is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community.

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Full documentation for installing ZoL on your favorite Linux distribution can be found at our site.

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