repomanz Posted March 10, 2023 Share Posted March 10, 2023 Hello - I have a single ssd drive acting as cache. It's in pre-fail now so I need to do something with it soon. I have another same size (not brand) SSD and wondering if I can convert my current single disk cache to a mirrored cache without losing data on the current drive. Possible? If so can someone provide steps to do so? Quote Link to comment
apandey Posted March 10, 2023 Share Posted March 10, 2023 See adding disks to pool https://wiki.unraid.net/Manual/Storage_Management#Adding_disks_to_a_pool Quote Link to comment
repomanz Posted March 13, 2023 Author Share Posted March 13, 2023 cybertron-diagnostics-20230309-1053.zip Quote Link to comment
JorgeB Posted March 13, 2023 Share Posted March 13, 2023 Current cache is btrfs, so you can add a device and the pool will be mirrored, of course existing device still needs to be working correctly for the mirroring to be successful. Quote Link to comment
repomanz Posted March 20, 2023 Author Share Posted March 20, 2023 @JorgeB I adding a second ssd and then rebalance happened so I believe we're good on my original request. After that was successful I pulled the bad SSD and put in the replacement. After adding the replacement into the pool I assumed rebalance would run again on the newly added drive but didn't. However didn't see that when clicking on cache drive. How can I tell if the two drives are mirrored correctly? Quote Link to comment
JorgeB Posted March 21, 2023 Share Posted March 21, 2023 Pool is in raid1 so looks correct, you can post the diags to confirm. Quote Link to comment
repomanz Posted March 21, 2023 Author Share Posted March 21, 2023 @JorgeB requested diags cybertron-diagnostics-20230321-0720.zip Quote Link to comment
JorgeB Posted March 21, 2023 Share Posted March 21, 2023 All looks OK, removed device was deleted but pool remained raid1, and data was rebalanced for the remaining devices. Quote Link to comment
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