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ReadyNAS 628 expansion not starting
ReadyNAS 628x running firmware 6.10.8 in RAID6 NAS has operated flawlessly for many years with eight (8) 14TB drives. A recent drive failure led me upgrade to: Four (4) 14TB drives F...
Some good if mysterious news! Since I was going to have to reformat the system to get more space, I completed upgrading from 14TB drives to 24TB drives. I added the 24TB drives (hot) one at a time letting the ReadyNAS return to redundant status after each drive was added. Adding each new drive took a couple days.
I added the eighth 24TB drive this weekend. Imagine my surprise this morning when I saw the message that it had resynced. FrontView reports that the data volume is now 130.94TB. Apparently, encrypted vertical expansion can occur but only when all drives have been upgraded to a larger size.
For what it's worth, my ReadyNAS 628 is on firmware 6.10.8.
I will take a stab at the log files, but I'm not sure what I'm looking for. I should have mentioned the volume is encrypted which means it was in Flex-RAID mode when I created it several years ago. It's possible I never changed it X-RAID until now.
I should have mentioned the volume is encrypted
Encrypted volumes can't be vertically expanded, so you'll need to destroy the volume and start over in order to use all the space.
Ouch! If I ever knew that, it is long forgotten.
If I recreate the encrypted volume, will the 4x14TB plus 4x24TB drives result in a (6x14TB) volume or a (4x14TB)+(2x24TB)volume?
If I recreate the encrypted volume, will the 4x14TB plus 4x24TB drives result in a (6x14TB) volume or a (4x14TB)+(2x24TB)volume?
First, an unencrypted RAID-6 volume would have a volume size of 104 TB (~94.6 TiB). There would be two RAID groups - 8*14TB spanning all disks, and 4*10TB using the remaining space on the 24 TB drives. So capacity would be 6*14 + 2*10.
I am not sure what would happen if you encrypted the volume. You mght get the same 104 TB, but I am thinking it is more likely that you'd end up with 84 TB instead (same as you have now).
A more predictable path would be to set up two RAID-5 volumes - 4x14TB and 4x24TB. Those could each be encrypted, and the capacities would be 42 TB and 72 TB respectively (114 TB total).
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