diff options
| -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 |