I had a bit of a hiccup last week with my zfs pool. It's a ten-drive raidz2 vdev. All the drives are Samsung F4s, though of two slightly different models. Two of the drives showed up one morning as "degraded". In somewhat of a panic I rushed out and bought a couple Seagate drives as replacements. When I tried to do the actual replace operation zfs told me the new drive was not compatible with the existing drive array. I don't recall the wording of the error message.
I have since learned what I thought was complete disaster was zfs being extremely cautious. I ended up clearing the errors and two subsequent scrubs have turned up no errors. Just in case, I bought some more Samsung F4 drives. Last night I installed one of them as a spare drive. No problem. Then, since it was still mounted, I designated the Seagate drive as a spare. Again, no problem. Since I know it doesn't like the Seagate drive for use with this array, this tells me mounting a drive as a spare doesn't check to see if the drive will really work as a spare. Is there any way short of actually doing a zpool replace to determine if a drive will be truly compatible with an existing vdev? _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
