Did stupid thing instead of reading docs.

I had the following config: disk0 - parity, disk1 and disk2 in array

disk2 failed. Disk2 was emulated and I used it that way for some time.

Bought and installed new disk (let's call it disk3).

Then I stopped the array and started New Config, ticked preserve all assignments. Yeah I read "DO NOT USE THIS UTILITY THINKING IT WILL REBUILD A FAILED DRIVE - it will have the opposite effect of making it impossible to rebuild an existing failed drive - you have been warned!" and still did that. 

So now I have disk0 (assigned as parity in config) and disk1 (in array) as new drives (marked blue).

Is it possible to return to the previous state with emulated disk2 and do normal replacement or the data from drive2 is lost? 

What happens if I tick "Parity is already valid" and start the array?

2 hours ago, Trustable1202 said:

Bought and installed new disk (let's call it disk3).

Don't follow disk part, were you installing a new disk or replacing disk2?

I would like to replace disk2. Currently disk3 is pre-cleared and unassigned.

Edited December 2, 20232 yr by Trustable1202

If disk3 was never added to the array you can try this (leave disk3 unassigned), it will only work if parity is still valid:

 

 

-assign the new disk2, replacement disk should be same size or larger than the old one
-IMPORTANT - Check both "parity is already valid" and "maintenance mode" and start the array (note that the GUI will still show that data on parity disk(s) will be overwritten, this is normal as it doesn't account for the checkbox, but it won't be as long as it's checked)
-Stop array
-Unassign disk2
-Start array (in normal mode now), ideally the emulated disk will now mount and contents look correct, if it doesn't post the diags
-If the emulated disk mounts and contents look correct stop the array
-Re-assign disk2 and start array to begin.