dhomas Posted March 14 Share Posted March 14 (edited) Hello all! I am having a problem that I don't know how to resolve. I had an array of 2 x 22TB parity drives and 4 data drives: 2 x 16TB, 1 x 22TB, and 1 x 20TB. I wanted to add a 5th data drive, an 18TB, to the array. I performed the preclear on the new drive, all completed successfully with no errors (pre-read, preclear, post-read). I then stopped the array, added the new drive (Disk 5) to the array and started it up again. When I started it, Disk 4 (which already has data on it) and Disk 5 showed up as "Unmountable: Unsupported partition layout". See below: I do not want to lose the data on Disk 4. Disk 5 is new, so I don't care if I need to format it again. How should I proceed? Thank you for any help you can provide. Edit: added diagnostics. Regards, Dhomas undom-diagnostics-20240314-0819.zip Edited March 14 by dhomas Added context Quote Link to comment
Solution JorgeB Posted March 14 Solution Share Posted March 14 Looks like the new parition for disk4 requires a reboot to be updated, please reboot and post new diags after array start. Quote Link to comment
dhomas Posted March 14 Author Share Posted March 14 (edited) Phew! A reboot seems to have fixed Disk 4. Disk 5 still appears as Unmountable. I suppose I should just format that one. Edited March 14 by dhomas typo Quote Link to comment
JorgeB Posted March 14 Share Posted March 14 4 minutes ago, dhomas said: I suppose I should just format that one Yep. Quote Link to comment
dhomas Posted March 14 Author Share Posted March 14 After a format, the new drive is also functional. Thanks for your help! I'm learning unraid, so these types of small issues still make me a little skittish. I'll mark your post as a solution. However, my understanding is that it should not be necessary to reboot for these types of array operations, provided my drives are already physically installed. Any clue as to what made the previously functional Disk 4 show up as Unmountable? So I can avoid these mini heart attacks in the future. Quote Link to comment
JorgeB Posted March 14 Share Posted March 14 22 minutes ago, dhomas said: However, my understanding is that it should not be necessary to reboot for these types of array operations, It should not, I've seen this before but cannot reproduce, I've been trying to, which tool did you use to preclear the disk? Quote Link to comment
dhomas Posted March 14 Author Share Posted March 14 I used the Unassigned Devices Preclear plugin to preclear my Disk 5. 1 Quote Link to comment
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