Hi.
Some time ago I took of hetzner auction a machine with 15 x 6TB HDD.
Somewhat naive (if not plain stupid) I configured it in one vdev raidz2.
auch.
it run few VM (very slow) and few LXC and some backing up for my substancial photo-library, and predictably machine is slowly dying
I even got uncorrectable error recently on one backup that was not corrected after 18 days of scrub
so there is time for changes but my budget is limited so I consider following options
take another machine like that and set it as striped 7 mirror + spare - this will give me way less space but supposedly much better performance under proxmox
I am not sure if I have other options as the space is a bit short for my needs
or go for SX134 - twice as expensive
but 10 x 16TB HDD, 2 x 960NVMe
striped 5 mirrors will give me twice the storage space comparing to the above, but I wonder what is the best option to do with those Nvme
I guess I could install proxmox on very fast nvme mirror and use it for fast VMs
or I could add the nvme to the ZFSpool of HDD as cache - though I don't really understand how it works and what would gain in a workload with few vm and few LXC
please help
if I decide for SX134 option - I simply don't want to make another stupid mistake
any ideas?
Some time ago I took of hetzner auction a machine with 15 x 6TB HDD.
Somewhat naive (if not plain stupid) I configured it in one vdev raidz2.
auch.
it run few VM (very slow) and few LXC and some backing up for my substancial photo-library, and predictably machine is slowly dying
I even got uncorrectable error recently on one backup that was not corrected after 18 days of scrub
so there is time for changes but my budget is limited so I consider following options
take another machine like that and set it as striped 7 mirror + spare - this will give me way less space but supposedly much better performance under proxmox
I am not sure if I have other options as the space is a bit short for my needs
or go for SX134 - twice as expensive
but 10 x 16TB HDD, 2 x 960NVMe
striped 5 mirrors will give me twice the storage space comparing to the above, but I wonder what is the best option to do with those Nvme
I guess I could install proxmox on very fast nvme mirror and use it for fast VMs
or I could add the nvme to the ZFSpool of HDD as cache - though I don't really understand how it works and what would gain in a workload with few vm and few LXC
please help
if I decide for SX134 option - I simply don't want to make another stupid mistake
any ideas?
