HP XP P9500 Software User's Manual page 298

Table 82 Using a Delta Resync Configuration
No.
1
2
3
4
5
6
7
8
9
298 Maintenance and Troubleshooting Operations
Maintenance or
Failure Target
Maintenance Primary site storage
system maintenance
Local site storage
system maintenance
Remote site storage
system maintenance
Primary site host
maintenance
Local site host
maintenance
Remote site host
maintenance
Failure Primary site storage
system (volatile)
Primary site storage
system failure
(nonvolatile)
Local site storage
system failure (volatile)
Description See
Perform a delta Performing primary
resync, and then site storage system
change the maintenance
configuration to a
2DC configuration
(Local > Remote).
Suspend Cnt Ac-S Z Performing local site
copy pairs, and then storage system
change the maintenance
configuration to a
2DC configuration
(Primary > Remote).
Suspend Cnt Ac-J Z Performing remote site
copy pairs, and then storage system
change the maintenance
configuration to a
2DC configuration
(Primary > Local).
Perform a delta Performing primary
resync, and then site host maintenance
change the
configuration to a
3DC Multi-Target
configuration in which
operation is performed
from the local site
(Local > Primary, Local
> Remote).
Operation in a delta —
resync configuration is
not affected.
Operation in a delta —
resync configuration is
not affected.
Perform a delta Operating procedure
resync, and then during a primary site
change the storage system failure
configuration to a (volatile)
2DC configuration
(Local > Remote).
During failback, Cnt
Ac-S Z copy pairs and
Cnt Ac-J Z copy pairs
must be deleted and
then recreated.
Perform a delta Operating procedure
resync, and then during a primary site
change the storage system failure
configuration to a (nonvolatile)
2DC configuration
(Local > Remote).
Suspend Cnt Ac-S Z Operating procedure
copy pairs, and then during a local site
change the storage system failure
configuration to a (volatile)
2DC configuration