joerawr
Dabbler
- Joined
- Sep 14, 2014
- Messages
- 20
I've got a 3TB x 6 disk RaidZ2. I've added a 7th 3TB drive and I want to use it to replace one of the six in the RaidZ2 (I'm slowly replacing a few hot running Seagate Constellations with Reds and Greens).
Let's say ADA4 is the disk I want to replace, and ADA0 is the new disk. ADA4 hasn't failed. Is there a way to tell the system that ADA0 is going to replace ADA4, so mirror all content to it and keep it in sync until 'replaced', without losing the 2 disk redundancy? That makes sense I hope. I've tried googling this, and maybe I'm getting my terminology wrong, but I've had no luck in finding if this is or isn't possible (or reasonable).
I think the standard way of approaching this is to stop all writes to the system (turning off services, etc) and then choose "replace" in the gui for ADA4, selecting ADA0 as the replacement. That sure sounds like I have dropped to just one disk of redundancy during the rebuilding process and seems unsafe/unwise. If ADA0, the new drive, decides to fail midway through the resilver, can I add ADA4 back in without resilvering?
Let's say ADA4 is the disk I want to replace, and ADA0 is the new disk. ADA4 hasn't failed. Is there a way to tell the system that ADA0 is going to replace ADA4, so mirror all content to it and keep it in sync until 'replaced', without losing the 2 disk redundancy? That makes sense I hope. I've tried googling this, and maybe I'm getting my terminology wrong, but I've had no luck in finding if this is or isn't possible (or reasonable).
I think the standard way of approaching this is to stop all writes to the system (turning off services, etc) and then choose "replace" in the gui for ADA4, selecting ADA0 as the replacement. That sure sounds like I have dropped to just one disk of redundancy during the rebuilding process and seems unsafe/unwise. If ADA0, the new drive, decides to fail midway through the resilver, can I add ADA4 back in without resilvering?