Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

14 Contents
Splitting disk groups .......................................................................................418
Joining disk groups .........................................................................................418
Changing the activation mode on a shared disk group ...................................418
Setting the disk detach policy on a shared disk group ....................................419
Setting the disk group failure policy on a shared disk group ..........................419
Creating volumes with exclusive open access by a node ...............................419
Setting exclusive open access to a volume by a node .....................................420
Displaying the cluster protocol version ..........................................................420
Displaying the supported cluster protocol version range ................................420
Upgrading the cluster protocol version ...........................................................421
Recovering volumes in shared disk groups ....................................................421
Obtaining cluster performance statistics .........................................................422
Chapter 14 Administering
sites and remote mirrors
Configuring sites for hosts and disks ......................................................................426
Configuring site-based allocation on a disk group .................................................426
Configuring site consistency on a disk group .........................................................427
Configuring site consistency on a volume ..............................................................427
Setting the siteread policy on a volume ..................................................................428
Site-based allocation of storage to volumes ...........................................................428
Examples of storage allocation using sites .....................................................430
Making an existing disk group site consistent ........................................................431
Fire drill — testing the configuration .....................................................................432
Simulating site failure .....................................................................................432
Recovery from simulated site failure ..............................................................432
Failure scenarios and recovery procedures .............................................................432
Recovery from a loss of site connectivity .......................................................433
Recovery from host failure .............................................................................433
Recovery from storage failure ........................................................................433
Recovery from site failure ..............................................................................434
Chapter 15 Using Storage Expert
How Storage Expert works .....................................................................................436
Before using Storage Expert ...................................................................................436
Running Storage Expert ..........................................................................................436
Discovering what a rule does ..........................................................................437
Displaying rule attributes and their default values .........................................437
Running a rule .................................................................................................438
Identifying configuration problems using Storage Expert ......................................439
Recovery time .................................................................................................440
Disk groups .....................................................................................................441