Hi all,
I have been looking through many forum posts on this topic but want clarity (peace of mind!) before I begin (measure twice, cut once).
I run a Dell T20 with 4x4TB WD Reds as mirrored vdevs. The motherboard only supports 4 SATA drives. Reaching exhaustion, I picked up 2 additional 4TB Reds and an LSI 9211-8i flashed to IT (P20). I want to move my current setup to 6x4 RaidZ2.
I am borrowing two additional 4TB reds from a friend in order to create a second pool (striped) for enough capacity. This will allow me to snapshot & zfs send my ~5.6TB to it, destroy the mirrored vdevs, create the RaidZ2 pool, and zfs send back. So the data will move twice.
Does this process sound correct? I am using this thread as my guide. I am wondering if I should go through the whole process twice by migrating data, rename, and re-import pool, before destroying my mirrored vdevs just to be sure. Then complete the process in the reverse. Or is that overkill?
Also, using the raid calculator from here, I notice that 2x4TB in stripe may only yeild ~5.7TB of storage. If I migrate 5.6TB to it, I will cross the 80% threshold, almost maxed! Is this going to be an issue if its merely for transfer?
Thanks
I have been looking through many forum posts on this topic but want clarity (peace of mind!) before I begin (measure twice, cut once).
I run a Dell T20 with 4x4TB WD Reds as mirrored vdevs. The motherboard only supports 4 SATA drives. Reaching exhaustion, I picked up 2 additional 4TB Reds and an LSI 9211-8i flashed to IT (P20). I want to move my current setup to 6x4 RaidZ2.
I am borrowing two additional 4TB reds from a friend in order to create a second pool (striped) for enough capacity. This will allow me to snapshot & zfs send my ~5.6TB to it, destroy the mirrored vdevs, create the RaidZ2 pool, and zfs send back. So the data will move twice.
Does this process sound correct? I am using this thread as my guide. I am wondering if I should go through the whole process twice by migrating data, rename, and re-import pool, before destroying my mirrored vdevs just to be sure. Then complete the process in the reverse. Or is that overkill?
Also, using the raid calculator from here, I notice that 2x4TB in stripe may only yeild ~5.7TB of storage. If I migrate 5.6TB to it, I will cross the 80% threshold, almost maxed! Is this going to be an issue if its merely for transfer?
Thanks