Web UI request: Include information about scrubbing and spares when doing a zpool status

[gh5046]

This request is for the Web UI.

When checking on the status of a ZFS volume (zpool status) it should:

• show the status of the scrub (if there is one in progress)
• show the state of the spares

When viewing the disks in a ZFS volume (view disks):

• list spares in addition to the other disks in the pool

I upgraded from 8.0 to 8.0.2 today. I am running the latest version.

At this time I have to run 'zpool status volume_name' from the command line to find this information.

Thank you.

[gh5046]

If it helps, here is an example output of a zpool status command:

$ zpool status brisket
  pool: brisket
 state: ONLINE
 scrub: scrub in progress for 0h1m, 0.15% done, 11h56m to go
config:

        NAME          STATE     READ WRITE CKSUM
        brisket       ONLINE       0     0     0
          raidz1      ONLINE       0     0     0
            gpt/ada0  ONLINE       0     0     0
            gpt/ada1  ONLINE       0     0     0
            gpt/ada2  ONLINE       0     0     0
            gpt/ada3  ONLINE       0     0     0
        spares
          gpt/ada4    AVAIL   

errors: No known data errors

[dexter]

+1 A progress bar on the dashboard with an ETA would be nice to help schedule work or simply answer "why is this running slower?"

[dwhite]

Merging in ticket #2060 -- expose resilver status as well.

[alfred]

Moving all enhancements to 9.2.0-RELEASE