HP XP P9500 Storage - Manual (Page 31)

4 Sharing Continuous Access Synchronous volumes
This chapter helps you plan Continuous Access Synchronous pair volumes when they are shared
with non-Continuous Access Synchronous volumes. It discusses the program products that can be
used with Continuous Access Synchronous.
Volume types that can be shared with Continuous Access Synchronous
The following table indicates whether non-Continuous Access Synchronous volumes can also be
used as Continuous Access Synchronous P-VOLs and S-VOLs.
Table 14 Volume types that can be shared with Continuous Access Synchronous
Used as S-VOL? Used as P-VOL? Volume type
LUN Expansion (LUSE)
Yes Yes LUSE Volume
Business Copy (BC)
Yes Yes P-VOL in PSUS (Delete pair to RCU) status
No No P-VOL in COPY(RS-R) status
No No BC P-VOL is also used as a Cnt Ac-J P-VOL or S-VOL
Yes Yes P-VOL (none of the above)
No Yes S-VOL in PSUS (Delete pair to RCU) status
No No S-VOL (none of the above)
No No Reserved volume
Snapshot (SS)
No No P-VOL in COPY(RS-R) status
No No SS P-VOL that is also used as a Cnt Ac-J P-VOL or S-VOL
Yes Yes P-VOL (none of the above)
No No V-VOL
No No Pool-VOL
Auto LUN
1
Yes. (If the source volume is an
S-VOL, volume migration will
stop.)
5
Yes. (If the source volume
is a P-VOL, volume
migration will stop.) Source volume (when volume migration is in progress)
Yes Yes Source volume (after volume migration is finished)
No No Target volume
No No Reserved volume
Continuous Access Journal (Cnt Ac-J)
No No P-VOL in COPY status
No
3
Yes
2
P-VOL in PAIR status
No
4
Yes
2
P-VOL in PSUS (Delete pair to RCU) status
No
4
Yes
2
P-VOL in PSUE (pair suspended-error) status
No No S-VOL in COPY status
Volume types that can be shared with Continuous Access Synchronous 31