mroptman
Dabbler
- Joined
- Dec 2, 2019
- Messages
- 23
What are the pros/cons of running a NVMe based pool with a single drive?
Anyone experience issues with SSD/NVMe based pools?
The stripe NVMe pool would have frequent snapshots replicated to a raid-z2 pool in case the single NVMe device (in the stripe pool) fails.
NVMe Workload:
- VMs (10 or fewer)
- Container Data
- Home use, not commercial (can restore from replicated snapshots if outage happens)
Running a comparable workload on ESXi with a single NVMe drive and there have been zero issues for over 7 years. Backup strategy with ESXi free is not as robust as with SCALE's ZFS capability w/snapshots and replication. On ESXi, the VMs are shutdown and exported to .7z archives. The intent is to automate this w/ZFS by moving to SCALE (once stable).
All in all, it seems like a waste of NVMe space to run a SSD-based mirror when SSDs are already so reliable. A mirror could be done but wasting 50% space again seems 'wasteful' for non-commercial workload. Curious for others input on their usage of NVMe/SSD pools.
Anyone experience issues with SSD/NVMe based pools?
The stripe NVMe pool would have frequent snapshots replicated to a raid-z2 pool in case the single NVMe device (in the stripe pool) fails.
NVMe Workload:
- VMs (10 or fewer)
- Container Data
- Home use, not commercial (can restore from replicated snapshots if outage happens)
Running a comparable workload on ESXi with a single NVMe drive and there have been zero issues for over 7 years. Backup strategy with ESXi free is not as robust as with SCALE's ZFS capability w/snapshots and replication. On ESXi, the VMs are shutdown and exported to .7z archives. The intent is to automate this w/ZFS by moving to SCALE (once stable).
All in all, it seems like a waste of NVMe space to run a SSD-based mirror when SSDs are already so reliable. A mirror could be done but wasting 50% space again seems 'wasteful' for non-commercial workload. Curious for others input on their usage of NVMe/SSD pools.