Restrictions – HP XP RAID Manager Software User Manual
Page 21
Copy pair status changes from PSUS while splitting pairs in a consistency group, the Snapshot
data cannot keep consistency.
Table 8 BC Operations when P-VOL shared with SS P-VOL
Snapshot Status
Business Copy Operation
PSUE
COPY (RS-R)
COPY (RS)
SMPL (PD)
PSUS
PAIR
COPY
Yes
No
Yes
Yes
Yes
Yes
Yes
Create pair
Yes
No
Yes
Yes
Yes
Yes
Yes
Create and split pair
Yes
No
Yes
Yes
Yes
Yes
Yes
Split pair
Yes
No
Yes
Yes
Yes
Yes
Yes
Forward pair resynchronization
Yes
No
Yes
Yes
Yes
Yes
Yes
Normal backward pair
resynchronization
No
No
No
No
No
No
No
Quick backward pair
resynchronization
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Suspend pair
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Delete pair
Table 9 BC Operations when S-VOL shared with SS P-VOL
Snapshot Status
Business Copy Operation
PSUE
COPY (RS-R)
COPY (RS)
SMPL (PD)
PSUS
PAIR
COPY
No
No
No
No
No
No
No
Create pair
No
No
No
No
No
No
No
Create and split pair
Yes
No
Yes
Yes
Yes
Yes
Yes
Split pair
Yes
No
Yes
Yes
Yes
Yes
Yes
Forward pair resynchronization
Yes
No
Yes
Yes
Yes
Yes
Yes
Normal backward pair
resynchronization
No
No
No
No
No
No
No
Quick backward pair
resynchronization
Yes
No
Yes
Yes
Yes
Yes
Yes
Suspend pair
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Delete pair
You can perform Business Copy operations while splitting pairs in a consistency group. However,
the Snapshot data cannot keep consistency.
For more on Business Copy pair status and operations, see the HP P9000 Business Copy User
Guide.
Restrictions
•
A Snapshot pair whose P-VOL is shared with a Business Copy pair’s P-VOL or S-VOL cannot
have the same mirror unit (MU) number as the Business Copy pair.
•
Because a Snapshot S-VOL uses the data in the P-VOL, the Business Copy Quick Restore
operation is not allowed.
Continuous Access Synchronous or Continuous Access Journal
Snapshot P-VOLs can be shared with Continuous Access Synchronous (Cnt Ac-S) or Continuous
Access Journal (Cnt Ac-J) pair volumes. Snapshot’s pair operations are more restricted when shared
Continuous Access Synchronous or Continuous Access Journal
21