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Managing Disks - Certify, Verify, Initialize
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I had a drobo 5D with 5 8TB drives. It died and Drobo is out of business, so I bought an OWC Flex-8. I put in the 5 8TB drives, a 10TB drive and a 6TB. the OWC enclosure had a major cow with dozens of smart errors per drive. I took each drive and put them in a cheap enclosure and they all pass smart tests. So I don't know what OWC is testing. I turned Smart Status off and tried to add them to a RAID. I could not add the 6 to the raid with the 8s and the 10. I cannot get a firm answer on whether all drives need to be the same. So, I am not certifying all drives which will take 3 days. does anyone have any experience moving drives from a drobo to an OWC and is there anything wrong with that?
Posted : 21/02/2023 3:46 pm
Enable SMART again and save a SoftRAID technical support file (Utilities menu) and attach it. Drobo does not check for SMART/predicted failure. SoftRAID does. (We use the google study of 100,0900 disks, and also Backblaze data to predict drives that are on a path to failure) I can tell you the condition, so you may have drives starting to fail and not know it.
As to the drobo, it was a hybrid RAID, kind of a hack that allows different size drives in a RAID volume. In Formal RAID, all partitions on disks must be the same size. Else you must fool the file system, or do funny stuff to get the RAID to work properly. We do not support variable stripe unit sizes, for example.
So if you have a 6 and several 8's the 6 will limit the size of the potential volume. You can still use that space for a different volume, but not in the main volume.
Lets see what is going on with your drives.
This post was modified 3 years ago by SoftRAID Support
Posted : 21/02/2023 9:05 pm
