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System options that affect performance.................................................................................33
Enabling system options......................................................................................................33
5 Managing Business Copy pairs..................................................................36
Workflow for managing Business Copy pairs.............................................................................36
BC pair status checks..............................................................................................................36
BC pair creation.....................................................................................................................37
Workflow for creating Business Copy pairs............................................................................37
Prerequisites for creating BC pairs........................................................................................38
Creating BC pairs..............................................................................................................38
Creating L1 and L2 pairs with different topologies..................................................................43
Refining pair topology...................................................................................................44
Suppressing update copy operations during pair creation.......................................................45
Suspending BC pair creation....................................................................................................45
Changing BC pair options.......................................................................................................47
Splitting BC pairs...................................................................................................................48
Pair splitting methods.........................................................................................................49
Prerequisites for splitting BC pairs........................................................................................49
Workflow for quickly splitting existing pairs...........................................................................50
Splitting BC pairs...............................................................................................................50
Workflow for consistency group pair-split..............................................................................52
Restrictions for consistency group pair-split........................................................................53
Workflow for maintaining consistent Business Copy secondary volume backups....................53
Workflow for ensuring snapshot data is consistent with P-VOL data...........................................53
BC pair resynchronization........................................................................................................53
Types of pair resynchronization............................................................................................54
Forward resynchronization..............................................................................................54
Reverse resynchronization...............................................................................................55
Workflow for resynchronizing BC pairs.................................................................................56
Workflow for restoring BC pairs...........................................................................................56
Resynchronizing or restoring BC pairs...................................................................................57
Suppressing update copy operations during pair restoration.........................................................59
Workflow for setting the RAID level...........................................................................................60
BC pair deletion.....................................................................................................................60
Prerequisites for deleting BC pairs........................................................................................60
Workflow for deleting BC pairs............................................................................................60
Deleting BC pairs..............................................................................................................60
MP blades and deleting pairs..............................................................................................62
6 Monitoring and maintaining Business Copy.................................................63
Monitoring the Business Copy system........................................................................................63
Viewing pair information for local replication........................................................................63
Monitoring BC pair activity and status..................................................................................64
The RWC pair status names and descriptions....................................................................65
RAID Manager pair status names....................................................................................66
Pair status and supported pair user tasks..........................................................................67
L1, L2 pair status and supported pair user tasks.................................................................67
Unaffected S-VOL status and pair user tasks......................................................................69
Monitoring BC pair and volume details.................................................................................69
Monitoring BC pair synchronization rates..............................................................................71
Monitoring consistency groups.............................................................................................72
Viewing consistency group properties..............................................................................73
Viewing a list of Fast Snap pairs.....................................................................................74
Monitoring pair user task history..........................................................................................74
Workflow for maintaining the system ........................................................................................76
Information about system and device maintenance.................................................................76
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