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6 Contents
DCO volume versioning ..............................................................................68
FastResync limitations ...............................................................................74
Hot-relocation ...................................................................................................... 75
Volume sets .......................................................................................................... 75
Chapter 2 Administering disks
Disk devices ..........................................................................................................77
Disk device naming in VxVM .....................................................................78
Private and public disk regions .................................................................80
Discovering and configuring newly added disk devices ................................82
Partial device discovery ..............................................................................82
Discovering disks and dynamically adding disk arrays .........................83
Third-party driver coexistence ..................................................................84
Administering the Device Discovery Layer .............................................85
Placing disks under VxVM control ...................................................................90
Changing the disk-naming scheme ...................................................................91
Regenerating persistent device names ....................................................93
Changing device naming for TPD-controlled enclosures ......................94
Discovering the association between enclosure and OS based disk names 94
Issues regarding persistent simple or nopriv disks with enclosure-based
naming ...................................................................................................94
Installing and formatting disks .........................................................................96
Displaying and changing default disk layout attributes ...............................97
Adding a disk to VxVM .......................................................................................97
Reinitializing a disk ...................................................................................101
Using vxdiskadd to place a disk under control of VxVM .....................101
Rootability .........................................................................................................102
VxVM root disk volume restrictions .......................................................103
Root disk mirrors .......................................................................................103
Booting root volumes ................................................................................104
Setting up a VxVM root disk and mirror ................................................104
Creating an LVM root disk from a VxVM root disk ..............................106
Adding swap volumes to a VxVM rootable system ...............................107
Adding persistent dump volumes to a VxVM rootable system ..........107
Removing a persistent dump volume .....................................................108
Dynamic LUN expansion ..................................................................................108
Removing disks ..................................................................................................110
Removing a disk with subdisks ................................................................111
Removing a disk with no subdisks ..........................................................112
Removing a disk from VxVM control .............................................................112
Removing and replacing disks .........................................................................112
Replacing a failed or removed disk .........................................................115
Enabling a disk ...................................................................................................117