CarlB
Dabbler
- Joined
- Jan 30, 2018
- Messages
- 40
Hey guys, you help dumb down the metadata vdev? I read some other threads and it isn't really clicking for me.
I've got a pool of 8 disks in RAIDZ1. There is an old intel 400GB PCIe SSD in my server. This thing is basically 4x100GB. So I used 1x for cache and 1x for log, which these added without issue to the existing pool. (If curious this did massive performance increases for iSCSI performance. Reads and writes were bogged way down for me over 10gig.)
If I try to add a metadata vdev, I get the following warning. "Metadata vdev must be the same type as the data vdevs." This sounds like it wants me to have a raidz set of SSD's for the metadata, but is that actually necessary? Just want to make sure that these 2x100GB SSD's are not usable. I don't mind buying enough SSDs to have raidz for metadata, but trying to understand the distinction and use the SSDs I have if possible.
Thanks!
I've got a pool of 8 disks in RAIDZ1. There is an old intel 400GB PCIe SSD in my server. This thing is basically 4x100GB. So I used 1x for cache and 1x for log, which these added without issue to the existing pool. (If curious this did massive performance increases for iSCSI performance. Reads and writes were bogged way down for me over 10gig.)
If I try to add a metadata vdev, I get the following warning. "Metadata vdev must be the same type as the data vdevs." This sounds like it wants me to have a raidz set of SSD's for the metadata, but is that actually necessary? Just want to make sure that these 2x100GB SSD's are not usable. I don't mind buying enough SSDs to have raidz for metadata, but trying to understand the distinction and use the SSDs I have if possible.
Thanks!