HP XP7 Storage - Manual (Page 4)

Calculating the remaining shared memory............................................................................32
Workflow for calculating Fast Snap pairs based on cache management devices.........................33
Calculating the number of cache management devices...........................................................33
Fast Snap cache management device requirements................................................................33
Fast Snap pair restoration and host server I/O performance....................................................34
Calculating and assigning pool capacity..............................................................................34
Workflow for resolving insufficient pool capacity...............................................................35
Pool capacity calculations..............................................................................................35
Workflow for creating a backup of data...........................................................................35
External Storage and external volumes used as pool-VOLs.......................................................35
3 Configuring Fast Snap...............................................................................37
Setting up to configure Fast Snap..............................................................................................37
Workflow for configuring Fast Snap..........................................................................................37
Workflow for creating and managing Fast Snap pairs............................................................37
Workflow for creating Fast Snap data pools..........................................................................38
Creating Fast Snap data pools........................................................................................38
Selecting pool volumes..................................................................................................40
Pool creation and data drive type priority.........................................................................41
Workflow for registering virtual volumes....................................................................................42
Editing the SSID for virtual volumes.......................................................................................42
Changing LDEV settings......................................................................................................44
Confirming used LDEV IDs..............................................................................................47
Confirming generated LDEV SSIDs...................................................................................49
Creating LDEVs.................................................................................................................51
Removing LDEVs from registering tasks.............................................................................55
Workflow for recognizing devices from the host server.......................................................57
Host server stoppages and device recognition issues..........................................................57
Overview of using the RAID Manager to run commands through in-band connections......................58
Changing system options that affect Fast Snap performance.........................................................58
Changing CLPR numbers.........................................................................................................60
4 Managing Fast Snap Pairs.........................................................................61
Fast Snap pair tasks................................................................................................................61
Checking Fast Snap pair status.................................................................................................61
Reloading configuration information..........................................................................................62
Workflow for creating and managing Fast Snap pairs.................................................................62
Workflow for creating Fast Snap pairs using Remote Web Console...............................................62
Creating Fast Snap pairs and defining them in snapshot or consistency groups using the RAID
Manager...............................................................................................................................63
Creating Fast Snap pairs.........................................................................................................64
Selecting a pool as your primary volume..............................................................................68
Complex Fast Snap pairs....................................................................................................70
Workflow for adding secondary volumes to existing FS pairs..............................................70
Workflow for creating Fast Snap pairs of different configurations.........................................71
Workflow for sharing volumes with Continuous Access Synchronous or Continuous Access
Journal.............................................................................................................................72
Workflow for defining pairs to consistency groups when the host is down......................................72
Snapshot data storage methods................................................................................................73
Splitting Fast Snap pairs to store snapshot data..........................................................................73
Splitting Fast Snap pairs to store snapshot data using the RAID Manager..................................75
Workflow for splitting Fast Snap pairs in consistency groups.........................................................75
Workflow for consistency group pair-split with shared volumes.................................................76
Restoring Fast Snap pairs.........................................................................................................79
Workflow for restoring suspended Fast Snap pairs..................................................................81
Formatting external volumes.....................................................................................................81
4 Contents