Sharing Continuous Access Synchronous Volumes; Volume Types That Can Be Shared With Continuous Access Synchronous - HP StorageWorks P9000 User Manual

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 10 Volume types that can be shared with Continuous Access Synchronous
Volume type
LUN Expansion (LUSE)
LUSE Volume
Business Copy (BC)
P-VOL in PSUS (Delete pair to RCU) status
P-VOL in COPY(RS-R) status
BC P-VOL is also used as a Cnt Ac-J P-VOL or S-VOL
P-VOL (none of the above)
S-VOL in PSUS (Delete pair to RCU) status
S-VOL (none of the above)
Reserved volume
Snapshot (SS)
P-VOL in COPY(RS-R) status
SS P-VOL that is also used as a Cnt Ac-J P-VOL or S-VOL
P-VOL (none of the above)
V-VOL
Pool-VOL
1
Auto LUN
Source volume (when volume migration is in progress)
Source volume (after volume migration is finished)
Target volume
Reserved volume
Continuous Access Journal (Cnt Ac-J)
P-VOL in COPY status
P-VOL in PAIR status
P-VOL in PSUS (Delete pair to RCU) status
P-VOL in PSUE (pair suspended-error) status
S-VOL in COPY status
Used as P-VOL?
Yes
Yes
No
No
Yes
Yes
No
No
No
No
Yes
No
No
Yes. (If the source volume
is a P-VOL, volume
migration will stop.)
Yes
No
No
No
2
Yes
2
Yes
2
Yes
No
Volume types that can be shared with Continuous Access Synchronous
Used as S-VOL?
Yes
Yes
No
No
Yes
No
No
No
No
No
Yes
No
No
Yes. (If the source volume is an
S-VOL, volume migration will
5
stop.)
Yes
No
No
No
3
No
4
No
4
No
No
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