4 sharing continuous access synchronous volumes, 5 cnt ac-s configuration, 6 cnt ac-s pair operations – HP XP Racks User Manual

Page 4: 7 monitoring and maintaining the cnt ac-s system

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Host failover software..............................................................................................................32
Data path requirements and configurations................................................................................32

Bandwidth requirements......................................................................................................32
Fibre Channel requirements.................................................................................................33
Supported data path configurations.....................................................................................33

Direct connection..........................................................................................................33
Switch connection.........................................................................................................34
Extender connection......................................................................................................34

Ports.................................................................................................................................35

Port requirements ..........................................................................................................35
Port attributes................................................................................................................36

4 Sharing Continuous Access Synchronous volumes.........................................37

Volume types that can be shared with Continuous Access Synchronous..........................................37
Cache Residency....................................................................................................................39
Data Retention.......................................................................................................................39
Thin Provisioning....................................................................................................................40
global virtualization................................................................................................................41
LUN Manager .......................................................................................................................41
Performance Monitor...............................................................................................................41
Business Copy........................................................................................................................41

Configurations with Business Copy P-VOLs.............................................................................42
Configurations with Business Copy S-VOLs............................................................................43
Status reporting and data currency.......................................................................................43

Continuous Access Journal.......................................................................................................44
Virtual LUN............................................................................................................................44
Auto LUN .............................................................................................................................44

Restrictions........................................................................................................................44

5 Cnt Ac-S configuration...............................................................................45

Configuration workflow...........................................................................................................45
Defining port attributes............................................................................................................45
Setting up primary and secondary systems for Cnt Ac-S...............................................................46
Setting # of vols. copied, path blockade, other options................................................................48

6 Cnt Ac-S pair operations...........................................................................51

Pair operations workflow.........................................................................................................51
Checking pair status...............................................................................................................51
Creating pairs........................................................................................................................51
Splitting pairs.........................................................................................................................53
Resynchronizing pairs.............................................................................................................55
Deleting pairs........................................................................................................................56

7 Monitoring and maintaining the Cnt Ac-S system..........................................58

Monitoring pair status, license capacity.....................................................................................58

How pair status changes.....................................................................................................59
Pair status definitions..........................................................................................................60

Split types....................................................................................................................62
System behavior............................................................................................................63

Monitoring Cnt Ac-S pair synchronous rate.................................................................................63
Monitoring Cnt Ac-S operations history......................................................................................63

Operation descriptions.......................................................................................................64

Changing P-VOL Fence Level....................................................................................................64
Forcibly deleting pairs.............................................................................................................65
Saving pair information to a text file .........................................................................................66
Monitoring and maintaining remote connections and paths .........................................................67

Remote path status definitions..............................................................................................68

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