NODE-2 now seeing NODE-1 ZFS storage...

[uttt]

Hello! please help, cant find solution on forum or dont know how to search (sorry!).
I have cluster - all good, but.. NODE-2 cant see NODE-1 ZFS storage :/ so i cant do replications and other "need to have" things... please sugest something

 

[Dunuin]

ZFS isn't a shared filesystem. And for replikation to work the ZFS pools on both nodes need to be named identical.

 

[uttt]

ZFS isn't a shared filesystem. And for replikation to work the ZFS storages on both nodes need to be named identical.

They must be same sizes? cos NODE-1 is 512Gb NODE-2 1tb nvme disks :/

 

[Dunuin]

Replication will sync all data from one node/pool to the other one. So yes, both pools should be the same size as you will need a copy of everything on both nodes.

 

[uttt]

hmmm bad then :/ wanted to replicate one VM

 

[uttt]

Replication will sync all data from one node/pool to the other one. So yes, both pools should be the same size as you will need a copy of everything on both nodes.

So i need to buy same size nvme, add them to NODE2, create ZFS storage with same name like in NODE1 and it should work?

 

[Dunuin]

See the documentation for replication:
https://pve.proxmox.com/wiki/Storage_Replication
https://pve.proxmox.com/wiki/PVE-zsync

 

[Neobin]

You only need identical named storages on the source and the target node.

With different sized pools, you obviously can not replicate 700 GB of vdisks from the 1 TB pool to the 500 GB pool. But since you set a replication job per VM/LXC and not for the whole pool, this is not a showstopper in general, as long as your vdisk(s) fit in the 500 GB pool.