HP XP7 Continuous Access Journal User Guide (TK911-96002)

Sizing bandwidth for peak write-workload........................................................................34
Sizing bandwidth for peak rolling average write-workload..................................................36
Latency .......................................................................................................................38
Packet loss ...................................................................................................................38
Planning ports for data transfer ................................................................................................38
Port types..........................................................................................................................39
Cable length and switch requirements.......................................................................................40
Supported data path configurations .........................................................................................41
5 Cnt Ac-J pair operations............................................................................43
Pair operations workflow.........................................................................................................43
Checking pair status...............................................................................................................43
Creating the Cnt Ac-J initial copy .............................................................................................43
Splitting Cnt Ac-J pairs ............................................................................................................46
Splitting mirrors .....................................................................................................................47
Creating point-in-time copies ...................................................................................................48
Resynchronizing Cnt Ac-J pairs ................................................................................................48
Resynchronizing mirrors ..........................................................................................................50
Deleting Cnt Ac-J pairs ...........................................................................................................51
Deleting pairs in a mirror ........................................................................................................52
6 Cnt Ac-J configuration operations ...............................................................54
Configuration workflow ..........................................................................................................54
Defining fibre-channel port attributes ........................................................................................54
Configuring primary and secondary systems for Cnt Ac-J .............................................................55
Configuring additional remote paths ........................................................................................57
Creating journals and adding journal volumes ..........................................................................57
Assigning an MP blade to a journal..........................................................................................60
7 Monitoring the Cnt Ac-J system ..................................................................61
Monitoring pair activity, status, license capacity..........................................................................61
Pair status definitions..........................................................................................................62
Additional information on pair status...............................................................................65
Cnt Ac-J PSUS types and behaviors..................................................................................65
Cnt Ac-J PSUE types and behaviors..................................................................................67
Monitoring Cnt Ac-J pair synchronous rate..................................................................................68
Monitoring Cnt Ac-J operations history.......................................................................................68
Operation descriptions.......................................................................................................69
Saving pair information to a text file .........................................................................................70
Monitoring journal (mirror) status..............................................................................................70
Remote Web Console mirror status definitions........................................................................71
RAID Manager mirror status definitions.................................................................................71
Monitoring Cnt Ac-J remote connections, path status....................................................................72
8 Maintaining the Cnt Ac-J system.................................................................73
Pair maintenance ...................................................................................................................73
Changing number of copies allowed per initial copy operation................................................73
Changing pair options ......................................................................................................73
Forcibly deleting pairs........................................................................................................74
Journal and mirror maintenance...............................................................................................75
Changing options used by journals .....................................................................................75
Changing options used by mirrors .......................................................................................77
Adding additional journal volumes to an existing journal........................................................79
Replacing a journal volume in a journal................................................................................80
Deleting journal volumes from a journal ...............................................................................80
Deleting journals ...............................................................................................................81
Remote path maintenance........................................................................................................82
4 Contents