Hewlett Packard Enterprise HPE XP7, User Manual, Page: 41 / 311

CAUTION: Fast Snap uses MU numbers 0 to 1,023, and they are assigned in the order of 3 to
1,023, followed by 0 to 2. Business Copy uses MU numbers 0 to 2. Fast Snap cannot use the MU
numbers 0 to 2 if you want to share Fast Snap volumes with Business Copy.
To share Fast Snap volumes with Business Copy if Fast Snap is using the MU numbers 0 to 2:
1. Delete the Fast Snap pair of the MU number 0 to 2.
2. Create the Business Copy pairs and Fast Snap pairs.
Sharing Fast Snap volumes with Continuous Access Synchronous and
Continuous Access Journal
The following tables list the relationship between pair tasks and status.
The following table lists the Fast Snap tasks you can perform when the P-VOL is shared with a
Continuous Access Synchronous or Continuous Access Journal P-VOL.
FS task Cnt Ac-S/Cnt Ac-J status
COPY PAIR PSUS PSUE Suspending Deleting
Create pair Yes Yes Yes Yes Yes Yes
Store snapshot data Yes Yes Yes Yes Yes Yes
Restore pair No No Yes Yes No No
Delete snapshot data Yes Yes Yes Yes Yes Yes
Delete pair Yes Yes Yes Yes Yes Yes
The following table lists the Fast Snap tasks you can perform when the P-VOL is shared with a
Continuous Access Synchronous or Continuous Access Journal S-VOL.
FS task Cnt Ac-S/Cnt Ac-J status
COPY PAIR PSUS PSUE SSWS Suspending Deleting
Create pair Yes Yes Yes Yes Yes Yes Yes
Store snapshot data No Yes Yes Yes Yes Yes Yes
Restore pair* No No No No No No No
Delete snapshot data Yes Yes Yes Yes Yes Yes Yes
Delete pair Yes Yes Yes Yes Yes Yes Yes
*When restoring an FS pair and you are using the P-VOL as a Cnt Ac-S or Cnt Ac-J S-VOL, switch tasks
to the remote storage system using the
horctakeover
command.
Sharing Fast Snap volumes with Continuous Access Synchronous and Continuous Access Journal 41