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

13Contents
Configuring a system for hot-relocation .................................................................375
Displaying spare disk information ..........................................................................376
Marking a disk as a hot-relocation spare ................................................................377
Removing a disk from use as a hot-relocation spare ..............................................378
Excluding a disk from hot-relocation use ...............................................................378
Making a disk available for hot-relocation use .......................................................379
Configuring hot-relocation to use only spare disks ................................................380
Moving and unrelocating subdisks .........................................................................380
Moving and unrelocating subdisks using vxdiskadm .....................................381
Moving and unrelocating subdisks using vxassist ..........................................382
Moving and unrelocating subdisks using vxunreloc ......................................382
Restarting vxunreloc after errors ....................................................................384
Modifying the behavior of hot-relocation ...............................................................385
Chapter 13 Administering cluster functionality
Overview of cluster volume management ..............................................................388
Private and shared disk groups .......................................................................391
Activation modes of shared disk groups .........................................................392
Connectivity policy of shared disk groups .....................................................394
Effect of disk connectivity on cluster reconfiguration ....................................399
Limitations of shared disk groups ...................................................................399
Cluster initialization and configuration ..................................................................400
Cluster reconfiguration ...................................................................................400
Volume reconfiguration ..................................................................................403
Node shutdown ...............................................................................................406
Node abort ......................................................................................................407
Cluster shutdown ............................................................................................407
Upgrading cluster functionality ..............................................................................407
Dirty region logging in cluster environments .........................................................408
How DRL works in a cluster environment .....................................................409
Multiple host failover configurations .....................................................................410
Import lock ......................................................................................................410
Failover ...........................................................................................................411
Corruption of disk group configuration ..........................................................411
Administering VxVM in cluster environments ......................................................413
Requesting node status and discovering the master node ...............................413
Determining if a disk is shareable ..................................................................414
Listing shared disk groups ..............................................................................414
Creating a shared disk group ..........................................................................415
Forcibly adding a disk to a disk group ............................................................416
Importing disk groups as shared .....................................................................416
Converting a disk group from shared to private .............................................417
Moving objects between disk groups .............................................................417