HP P9000 Continuous Access Synchronous User Guide (AV400-96400, October 2011)

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)
YesYesLUSE Volume
Business Copy (BC)
YesYesP-VOL in PSUS (Delete pair to RCU) status
NoNoP-VOL in COPY(RS-R) status
NoNoBC P-VOL is also used as a Cnt Ac-J P-VOL or S-VOL
YesYesP-VOL (none of the above)
NoYesS-VOL in PSUS (Delete pair to RCU) status
NoNoS-VOL (none of the above)
NoNoReserved volume
Snapshot (SS)
NoNoP-VOL in COPY(RS-R) status
NoNoSS P-VOL that is also used as a Cnt Ac-J P-VOL or S-VOL
YesYesP-VOL (none of the above)
NoNoV-VOL
NoNoPool-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)
YesYesSource volume (after volume migration is finished)
NoNoTarget volume
NoNoReserved volume
Continuous Access Journal (Cnt Ac-J)
NoNoP-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
NoNoS-VOL in COPY status
Volume types that can be shared with Continuous Access Synchronous 31