Saving pair status information into a text file.....................................................................85
Monitor copy operations data, I/O .....................................................................................86
Select data to be graphed..............................................................................................87
Manipulate graph, save data..........................................................................................89
Monitor journal status..............................................................................................................89
Mirror Journal status definitions............................................................................................89
Monitor logical path status.......................................................................................................90
History of operations for data volume pairs...........................................................................91
9 Maintaining the system ............................................................................92
Pair maintenance—change the pair-split option .........................................................................92
Journal and mirror maintenance...............................................................................................93
Change Continuous Access Journal Z options used by journals................................................93
Change Continuous Access Journal Z options used by mirrors .................................................95
Delete journal volumes from a journal...................................................................................97
Delete a journal.................................................................................................................98
Logical path maintenance........................................................................................................98
Modify data-transfer time threshold .....................................................................................98
Delete logical paths ..........................................................................................................99
Delete the Continuous Access Journal Z relationship ............................................................100
Manage power-off for systems and network devices .................................................................100
When power stops unexpectedly.......................................................................................100
When power is removed from primary or secondary system..............................................100
When power is removed from network relay devices .......................................................101
Power-off storage systems intentionally................................................................................101
Power-off the primary or secondary system......................................................................101
Power-off primary and secondary systems at the same time...............................................101
Power-off network relay devices..........................................................................................102
10 Disaster recovery operations ..................................................................103
Preparing for disaster recovery ..............................................................................................103
File and database recovery procedures ..................................................................................103
Switch operations to the secondary site ..................................................................................103
Copy data back to the primary site ........................................................................................104
Resume normal operations at the primary site ..........................................................................104
Disaster recovery for multiple primary and secondary storage systems.........................................105
Consistency of data update sequence when a disaster occurs................................................105
Disaster recovery for multiple primary and secondary storage systems....................................105
Recovery procedures with shared volumes................................................................................105
Recovery in a 3DC cascade configuration ..........................................................................106
Transferring business tasks back to the primary site..........................................................106
Recovering from primary site disaster in 3DC multi target configuration...................................107
Recovering from primary site failures (when delta resync operation is performed)......................109
Recovering from failures in the primary site and the Continuous Access Synchronous Z secondary
site................................................................................................................................112
Recovery with Business Copy Z configuration ......................................................................113
11 Troubleshooting....................................................................................114
General troubleshooting........................................................................................................114
Troubleshooting logical paths ................................................................................................115
Troubleshooting suspended pairs ...........................................................................................117
Troubleshooting using Remote Web Console............................................................................118
Error codes .........................................................................................................................119
Service information messages (SIMs) ......................................................................................119
Enabling or disabling SIM reporting...................................................................................121
Clearing SIMs.................................................................................................................122
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