mirror_zfs/cmd/zpool
George G eab4536081 Fix column alignment with long zpool names
`zpool status` normally aligns NAME/STATE/etc columns:

    NAME                       STATE     READ WRITE CKSUM
    dummy                      ONLINE       0     0     0
      mirror-0                 ONLINE       0     0     0
        /tmp/dummy-long-1.bin  ONLINE       0     0     0
        /tmp/dummy-long-2.bin  ONLINE       0     0     0
      mirror-1                 ONLINE       0     0     0
        /tmp/dummy-long-3.bin  ONLINE       0     0     0
        /tmp/dummy-long-4.bin  ONLINE       0     0     0

However, if the zpool name is longer than the zvol names, alignment
issues arise:

    NAME                  STATE     READ WRITE CKSUM
    dummy-very-very-long-zpool-name  ONLINE       0     0     0
      mirror-0            ONLINE       0     0     0
        /tmp/dummy-1.bin  ONLINE       0     0     0
        /tmp/dummy-2.bin  ONLINE       0     0     0
      mirror-1            ONLINE       0     0     0
        /tmp/dummy-3.bin  ONLINE       0     0     0
        /tmp/dummy-4.bin  ONLINE       0     0     0

`zpool iostat` and `zpool import` are also affected:

                  capacity     operations     bandwidth
    pool        alloc   free   read  write   read  write
    ----------  -----  -----  -----  -----  -----  -----
    dummy        104K  1.97G      0      0    152  9.84K
    dummy-very-very-long-zpool-name   152K  1.97G      0      1    144  13.1K
    ----------  -----  -----  -----  -----  -----  -----

    dummy-very-very-long-zpool-name  ONLINE
      mirror-0            ONLINE
        /tmp/dummy-1.bin  ONLINE
        /tmp/dummy-2.bin  ONLINE
      mirror-1            ONLINE
        /tmp/dummy-3.bin  ONLINE
        /tmp/dummy-4.bin  ONLINE

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Gaydarov <git@gg7.io>
Closes #6786
2017-12-04 17:21:38 -08:00
..
zpool.d zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
.gitignore Add .gitignore files to exclude build products 2010-01-08 11:35:17 -08:00
Makefile.am zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
zpool_iter.c Restrict zpool iostat/status -c to search path 2017-07-24 11:53:59 -07:00
zpool_main.c Fix column alignment with long zpool names 2017-12-04 17:21:38 -08:00
zpool_util.c codebase style improvements for OpenZFS 6459 port 2017-01-22 13:25:40 -08:00
zpool_util.h zpool iostat/status -c improvements 2017-06-05 10:52:15 -07:00
zpool_vdev.c Fix don't zero_label when replace with spare 2017-07-24 12:49:27 -07:00