Nexenta

Auto-CDP in its current form is problematic for setting up 2 Nexenta appliances that are both active and provide continuous protection for the other.

I'd like to have 1 syspool and 1 data pool on each appliance, and use 20 - 25% of each appliance's data pool to backup the most important ZVOLs on the opposite appliance. Given each appliance has a total of 4 SAS hard disk drives for data in a RaidZ2 configuration.

It would be ideal for the Auto-CDP plugin to allow replicating a ZVOL or the filesystem underlying a folder.
Instead of just ZPOOLs..

That way I could choose which iSCSI backing LUNs I want to replicate, rather than being forced to replicate everything.

For example, source host:
$ show zvol
LUN ID TPGT Size Reservation Volume Share Cnx# Swap
hunt-b/itest1 - 50G none hunt-b none 0 no
hunt-b/vm0-0 - 50G none hunt-b none 0 no

Want a way to replicate hunt-b/vm0-0 ( /dev/zvol/rdsk/hunt-b/vm0-0 ) , without
having to replicate all of hunt-b or hunt-b/itest1


Currently Auto-CDP only appears to allow me to replicate the overall pool, that would be "hunt-b"
in this example

The Auto-CDP replication operates at the device level, below the ZFS level.
In other words, it is not aware of any ZFS constructs, pools, datasets, etc.

To achieve a ZFS-level replication of individual datasets (file systems or
volumes), use auto-sync or auto-tier.
-- richard