Consideration and limitations
For create snapshot operation:
You must have a thin provision pool.
Source volume types are Standard, TPV, FTV, and WSV (except for the system volume).
The destination volume type is TPV only.
The maximum number of snapshots (SnapOPC+ Sessions) that can be created per volume is 512.
For host connection (mapping)
Available HLUNs are between 0 and 255.
If you want to use 256 or more HLUNs/Volumes to the host, change the LUN address of the host response to "Host Response" (flat space address) or you can enable the "LUN Expand Mode" option.
Then you can use HLUN up to 4096.