diff options
| author | kpande <[email protected]> | 2019-02-21 14:00:48 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2019-02-21 14:00:48 -0800 |
| commit | f8bb2a7e0c889d6c5cf7655d698869b3a32c2bb0 (patch) | |
| tree | e262994b516fcb32d69ed17acec228be34c6dcca /man/man8 | |
| parent | f23b0242b68723d7ca998cd6cfa5ff9e8c98c985 (diff) | |
Clarify zpool iostat statistics reporting
Document expected behavior for zpool iostat statistics reporting.
Reviewed by: Matt Ahrens <[email protected]>
Reviewed-by: Alek Pinchuk <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed by: Allan Jude <[email protected]>
Signed-off-by: Kash Pande <[email protected]>
Closes #2888
Closes #8417
Diffstat (limited to 'man/man8')
| -rw-r--r-- | man/man8/zpool.8 | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/man/man8/zpool.8 b/man/man8/zpool.8 index 800ada566..6dbd6c556 100644 --- a/man/man8/zpool.8 +++ b/man/man8/zpool.8 @@ -1635,10 +1635,15 @@ with no flags on the relevant target devices. .Oo Oo Ar pool Ns ... Oc Ns | Ns Oo Ar pool vdev Ns ... Oc Ns | Ns Oo Ar vdev Ns ... Oc Oc .Op Ar interval Op Ar count .Xc -Displays I/O statistics for the given pools/vdevs. You can pass in a -list of pools, a pool and list of vdevs in that pool, or a list of any -vdevs from any pool. If no items are specified, statistics for every -pool in the system are shown. +Displays logical I/O statistics for the given pools/vdevs. Physical I/Os may +be observed via +.Xr iostat 1 . +If writes are located nearby, they may be merged into a single +larger operation. Additional I/O may be generated depending on the level of +vdev redundancy. +To filter output, you may pass in a list of pools, a pool and list of vdevs +in that pool, or a list of any vdevs from any pool. If no items are specified, +statistics for every pool in the system are shown. When given an .Ar interval , the statistics are printed every |