ShimadaRiku
Contributor
- Joined
- Aug 28, 2015
- Messages
- 104
Any problems with having multiple individual pools of mirrored vdev?
I want to start with a 2x4TB mirror vdev in a pool. Then add a separate pool with another mirrored vdev when I need more storage & so on. This way any vdev failure will not affect the other pools.
There is only 1 drive redundancy as oppose to raidz2, but failure is isolated per pool. I also lose the convenience of having a single large pool in terms of management, but I am okay with that. I'll be storing mostly replaceable data and some important stuff will be backed up else where.
My reasoning is to avoid the upfront cost of getting 6x4TB raidz2 & not fully utilizing it. By the time I do a 16TB drive would probably exist and cost less. In essence I am trading extra redundancy & storage of raidz2 for cheaper scalability.
I want to start with a 2x4TB mirror vdev in a pool. Then add a separate pool with another mirrored vdev when I need more storage & so on. This way any vdev failure will not affect the other pools.
There is only 1 drive redundancy as oppose to raidz2, but failure is isolated per pool. I also lose the convenience of having a single large pool in terms of management, but I am okay with that. I'll be storing mostly replaceable data and some important stuff will be backed up else where.
My reasoning is to avoid the upfront cost of getting 6x4TB raidz2 & not fully utilizing it. By the time I do a 16TB drive would probably exist and cost less. In essence I am trading extra redundancy & storage of raidz2 for cheaper scalability.