ZFS RAID10 + cache?
I've just installed a Proxmox node and I have 4x SSDs + 1 NVMe
I've set up the SSDs with ZFS RAID10 and I'm not really sure what to do with the NVMe.
IA says "It can be used as a ZFS cache (L2ARC) if you are going to work with ZFS."
In your experience, will that ZFS cache make things faster? I have 128GB RAM BTW.
Comments
Nop, For a NVME to be used as cache, it has to be a little more special then an ordinary NVME
I would just use it as a NVME for storage of VPS that have backup in case it fails, or for non critical VM for short.
ZFS loves RAM, as it uses that for cache, RAM is low latency, compared to that NVME is not, so it makes no sense to do that. You will loose more than you will gain.
As you have 128 gb ram, and raid 10 setup, I would also lilit ARC to 16 gb at most, this way you will have a good balance of performance ( raid 10 ) and will not burn too much ram for ZFS, so you have 100gb + for VM ram.
Please do not leave ARK for ZFS in proxmox to auto/dynamic, it works not as you expect ( shit is the right word )
Other than this, Congratulations of choosing the most correct way to use a 4 drive setup
Cheers!
Host-C - VPS & Storage VPS Services – Reliable, Scalable and Fast - AS211462
"If there is no struggle there is no progress"
@host_c always helpful. thank you. I always forget to limit the ARC.
What a beast server congrats imok
I believe in good luck. Harder that I work ,luckier i get.