diff options
| author | NeilBrown <neilb@suse.de> | 2014-07-29 13:37:42 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2014-07-29 13:37:42 +1000 |
| commit | 46643e1ad5ece5f1257b2d827e36231df44929a2 (patch) | |
| tree | 09ed3faf0da9ab6b7fcd3241b1f3b1b7df69475b | |
| parent | 4e9a3dd16d656b269f5602624ac4f7109a571368 (diff) | |
Grow: improve error message is "--grow -n2" used on Linear arrays.
Linear arrays don't respond to setting raid-disks, only to
adding a device.
Reported-by: mulhern
Reported-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1122146
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | Grow.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -1028,7 +1028,12 @@ char *analyse_change(char *devname, struct mdinfo *info, struct reshape *re) switch (info->array.level) { default: - return "Cannot understand this RAID level"; + return "No reshape is possibly for this RAID level"; + case LEVEL_LINEAR: + if (info->delta_disks != UnSet) + return "Only --add is supported for LINEAR, setting --raid-disks is not needed"; + else + return "Only --add is supported for LINEAR, other --grow options are not meaningful"; case 1: /* RAID1 can convert to RAID1 with different disks, or * raid5 with 2 disks, or |