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

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 .........................................................................79
Discovering and configuring newly added disk devices ..........................................81
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 ...........................................................................92
Regenerating persistent device names ..............................................................92
Changing device naming for TPD-controlled enclosures .................................93
Discovering the association between enclosure-based disk names 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 ............................................96
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 ..............................................................102
Root disk mirrors ............................................................................................103
Booting root volumes ......................................................................................103
Setting up a VxVM root disk and mirror ........................................................104
Creating an LVM root disk from a VxVM root disk ......................................105
Adding swap disks to a VxVM rootable system .............................................106
Dynamic LUN expansion .......................................................................................107
Extended Copy Service ...........................................................................................108
Enabling a disk for Extended Copy Service operation ...................................109
Removing disks .......................................................................................................110
Removing a disk with subdisks ......................................................................111
Removing a disk with no subdisks .................................................................111
Removing a disk from VxVM control ....................................................................112
Removing and replacing disks ................................................................................112
Replacing a failed or removed disk ................................................................115
Enabling a disk ........................................................................................................116