Idolwild Posted July 31, 2020 Share Posted July 31, 2020 I just transplanted my Unraid installation from a tower to a SM-846. This is an established array with data, and came up fine in the new machine. I'll now be adding more storage. My question is, can I move the existing array members around, so their Device ID's in Unraid match the bays in the chassis I actually put them in? i.e., can I change the current "Disk 4" to empty, and move that disk to "Disk 5" - because I placed that disk in Bay 5 - without losing any data? Will Unraid keep the array intact with all data? Quote Link to comment
JorgeB Posted July 31, 2020 Share Posted July 31, 2020 You can do a new config, with single parity data device order doesn't matter, so you can check parity is already valid after the changes to avoid a parity sync (you can only change the order, all devices must remain the same). Quote Link to comment
Idolwild Posted July 31, 2020 Author Share Posted July 31, 2020 I appreciate the response, but I'm not sure I understand what you are saying. Sorry if I'm being thick - are you saying that I can change things around and because I only have one parity drive it wouldn't force a parity check? (not that I am trying to avoid that - I'll be moving that around next...) Quote Link to comment
JorgeB Posted July 31, 2020 Share Posted July 31, 2020 1 minute ago, Idolwild said: are you saying that I can change things around and because I only have one parity drive it wouldn't force a parity check? Yes, but you still need to do a new config. Quote Link to comment
Idolwild Posted July 31, 2020 Author Share Posted July 31, 2020 Ahh OK - I had to look up what you meant by New Config - I've never noticed or used this tool. So, to do what I want to do here, I want to preserve current assignments for parity and cache drives but not for data drives, correct? That should land me back at empty drive slot assignments and at that point I can reorder disks to match bays. No data should be lost, and all Docker configurations should be retained, yes? Quote Link to comment
JorgeB Posted July 31, 2020 Share Posted July 31, 2020 Yep, and after re-assigning them all check "parity is already valid" next to the array start button to avoid a parity sync. Quote Link to comment
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