I have various sized hhds with a few 1 and 2 TB drives. Due to them being the oldest and the fullest i want to upgrade about 6 drives onto two 8TB drives. Removing them one at a time to do a parity rebuild seems excessive...

 

Would a better/faster way be to simply add the 8 tb drives and then just mv/rsync all the files off the old drives to the new ones.

Then remove the old 6 drives and create a new config 

Finally rebuild the pairty?

Edited December 11, 20196 yr by pyrater
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32 minutes ago, pyrater said:

Would a better/faster way be to simply add the 8 tb drives and then just mv/rsync all the files off the old drives to the new ones.

Then remove the old 6 drives and create a new config 

 This is the only way you will be able to do it.  By the way, you will have to use one of those 8TB drives as the parity disk.  It is a requirement that the parity drive be as large as or larger than the largest data drive. (From your post, it appeared that you were planning on using both 8Tb drives as data disks.)

Thanx frank I appreciate it!

I'd recommend your operation be a copy, not a move, that way if anything goes south you haven't corrupted your original data set.