Shrinking Array with Dual Parity


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If you mean the "Remove Drives Then Rebuild Parity" Method no, both parity drives will need to be re-sync, array is unprotected until it's finished.

 

Power outage during a rebuild is usually fine, though there could always be some filesystem corruption, to avoid that you can do it in maintenance mode, will still need to start over if the power fails for no risk of fs corruption.

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I think I miss read something there the first time around (prepping to switch to unRAID from LizardFS).

 

What I was hoping for was a way to remove a disk while maintaining parity. I think the clean drive and remove thing would do this.  Sorry for burning time.

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44 minutes ago, BloodBlight said:

 

What I was hoping for was a way to remove a disk while maintaining parity. I think the clean drive and remove thing would do this. 

It will, but for reasons unknown to me the process of writing zeroes to a disk in the array takes ages. On the order of probably 10x or more the time required to just rebuild parity.

 

Because the situations where the advantages of clearing a drive to remove it are extremely limited, no effort has been put into figuring it out AFAIK.

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