Scampicfx
Contributor
- Joined
- Jul 4, 2016
- Messages
- 125
Dear Community,
I used to learn that a RAID10, or in other words "multiple mirrored vdevs", was the disk layout to choose for a zvol at a ZFS-server for deployments as ESXi datastore.
Now, time has to come to shift from hybrid pools to all flash storage pools. While I was in contact with one hardware vendor, he told that nowadays, a lot of all flahs pools (NetApp, EMC, etc.) are based on RAID5 / RAID6 techniques.
I would like to ask if there are people in here who operate an all flash RAIDZ1 or RAIDZ2 zvol as ESXi datastore? How good / bad was your experience with parity zvols at all flash pools?
From cost-perspective, it would be great to do multiple 6 disk raidz2 pools instead of mirrored vdevs. But well, when performance is back to the levels of hybrid pools, then this disk layout doesn't make any sense...
To be honest, there was one thing I didn't like about mirrored vdevs with 2 disks in them: in case of disk failure there was no redundancy left! A RAIDZ2 would solve this issue (Yes I know there are people who operate 3 disks in each mirrored vdevs ;)).
I used to learn that a RAID10, or in other words "multiple mirrored vdevs", was the disk layout to choose for a zvol at a ZFS-server for deployments as ESXi datastore.
Now, time has to come to shift from hybrid pools to all flash storage pools. While I was in contact with one hardware vendor, he told that nowadays, a lot of all flahs pools (NetApp, EMC, etc.) are based on RAID5 / RAID6 techniques.
I would like to ask if there are people in here who operate an all flash RAIDZ1 or RAIDZ2 zvol as ESXi datastore? How good / bad was your experience with parity zvols at all flash pools?
From cost-perspective, it would be great to do multiple 6 disk raidz2 pools instead of mirrored vdevs. But well, when performance is back to the levels of hybrid pools, then this disk layout doesn't make any sense...
To be honest, there was one thing I didn't like about mirrored vdevs with 2 disks in them: in case of disk failure there was no redundancy left! A RAIDZ2 would solve this issue (Yes I know there are people who operate 3 disks in each mirrored vdevs ;)).