[PVE-User] bcache, lvmcache, flashcache on proxmox 4

[Dmitry Petuhov]

In that case you can google for any caching solution suitable for Debian Jessie.
If your targets are LVM-backed then you should be able to do like in `man lvmcache`, just skip step 0.

> We have iscsi targets on storage machines(and they're in the proxmox cluster so we can use storage nodes for running VMs in emergency situations).
> Idea is to improve read performance, so if ssd fails receive some read speed degradation instead of data corruption. I want to cache iscsi storage on storage nodes, not on main pve nodes.
> Alexey, can you describe please your lvmcache usage scenario?
>
>> Cheap ssd in production server is generally bad idea. They may have some critical drawbacks like low lifetime on high-write workloads and low performance on some workloads.
>>
>> So what you want? Locally cache  *shared* iSCSI storage on PVE nodes? PVE doesn't have methods for this. You could try do something like that manually, but it's pretty dangerous.