Hi,

with iSCSI it is not possible now.

But you can use NFS with Failover. Just Setup NFS Failover with Volume Replication. And do a Data Replication from the NFS shares to the third system.

Sizeing:

1. Primary 16 TB DATA + Snapshot for Data Replication ( Size 2-3 time changed data)
2. Secondary just 16 TB for DATA

3. 16 TB DATA (may be more if you don't delete files during data Replication)

Sven