DannyG Posted March 16, 2019 Share Posted March 16, 2019 Hi, I need help/support. I previously had 4x 128GB SSD drives in UNraid as a cache drive, they were configured so they appeared as 1 large drive (480GB) (all via software in UNraid). Today I installed a new 1TB nvme drive to replace the 4 old drive. I clearly misunderstood what a cache drive did - I assumed that it only held temporary files (not all my installs Docker containers & VMs) and that those files were written off the cache drive to my array once a day on schedule. I stopped the array and changed the cache drive to my new 1TB drive. I started the array and low and behold all my Docker contains & VMs are gone. Crap! I stopped the array again, and tried to put the old drives back... but received a warning that doing so will erase the drives. So now, I need help, how can I get my stuff back online? Quote Link to comment
JorgeB Posted March 17, 2019 Share Posted March 17, 2019 If the old cache pool devices are untouched you can still recover, unassign current cache device and start the array without any cache, stop array, re-assign all the old cache devices and start the array, you can then use this to backup VM and docker services to the array, replace cache and move them back there. Quote Link to comment
DannyG Posted March 17, 2019 Author Share Posted March 17, 2019 If I stop the array, and attach the old drives, I get a warning saying that it will erase the disks. Quote Link to comment
JorgeB Posted March 18, 2019 Share Posted March 18, 2019 Not if you do this first: 23 hours ago, johnnie.black said: unassign current cache device and start the array without any cache, stop array, assuming you're on a recent release, older ones (<v6.5) might behave differently. Quote Link to comment
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