Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Setting exclusive open access to a volume by a node ................... 459
Displaying the cluster protocol version ..................................... 459
Displaying the supported cluster protocol version range .............. 460
Recovering volumes in shared disk groups ................................ 461
Obtaining cluster performance statistics .................................. 461
Administering CVM from the slave node ................................... 462
Chapter 14 Administering sites and remote mirrors ...................... 465
About sites and remote mirrors ..................................................... 465
About site-based allocation .................................................... 468
About site consistency ........................................................... 469
About site tags ..................................................................... 470
About the site read policy ....................................................... 470
Making an existing disk group site consistent .................................. 471
Configuring a new disk group as a Remote Mirror configuration ......... 472
Fire drill — testing the configuration .............................................. 474
Simulating site failure ........................................................... 474
Verifying the secondary site ................................................... 474
Recovery from simulated site failure ........................................ 474
Changing the site name ............................................................... 475
Resetting the site name for a host ............................................ 475
Administering the Remote Mirror configuration .............................. 476
Configuring site tagging for disks or enclosures ......................... 476
Configuring automatic site tagging for a disk group .................... 476
Configuring site consistency on a volume ................................. 477
Examples of storage allocation by specifying sites ............................ 478
Displaying site information .......................................................... 480
Failure and recovery scenarios ...................................................... 481
Recovering from a loss of site connectivity ................................ 481
Recovering from host failure .................................................. 482
Recovering from storage failure .............................................. 482
Recovering from site failure ................................................... 483
Automatic site reattachment .................................................. 483
Chapter 15 Performance monitoring and tuning ............................. 485
Performance guidelines ............................................................... 485
Data assignment .................................................................. 485
Striping .............................................................................. 486
Mirroring ............................................................................ 486
Combining mirroring and striping ........................................... 487
RAID-5 ..................................................................................... 487
Volume read policies ............................................................. 487
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