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

VxVM root disk volume restrictions ......................................... 118
Root disk mirrors ................................................................. 118
Booting root volumes ............................................................ 119
Setting up a VxVM root disk and mirror .................................... 119
Creating an LVM root disk from a VxVM root disk ...................... 121
Adding swap volumes to a VxVM rootable system ....................... 122
Adding persistent dump volumes to a VxVM rootable
system .......................................................................... 123
Removing a persistent dump volume ........................................ 123
Displaying disk information ......................................................... 124
Displaying disk information with vxdiskadm ............................. 125
Controlling Powerfail Timeout ...................................................... 125
Removing disks .......................................................................... 127
Removing a disk with subdisks ................................................ 129
Removing a disk with no subdisks ............................................ 130
Removing a disk from VxVM control .............................................. 130
Removing and replacing disks ....................................................... 130
Replacing a failed or removed disk ........................................... 134
Enabling a disk .......................................................................... 136
Taking a disk offline ................................................................... 137
Renaming a disk ......................................................................... 138
Reserving disks .......................................................................... 138
Chapter 4 Administering Dynamic Multi-Pathing .......................... 141
How DMP works ......................................................................... 141
How DMP monitors I/O on paths ............................................. 145
Load balancing ..................................................................... 147
DMP coexistence with HP-UX native multi-pathing .................... 147
DMP in a clustered environment ............................................. 151
Disabling multi-pathing and making devices invisible to VxVM .......... 152
Enabling multi-pathing and making devices visible to VxVM .............. 153
About enabling and disabling I/O for controllers and storage
processors ........................................................................... 154
About displaying DMP database information ................................... 155
Displaying the paths to a disk ....................................................... 155
Setting customized names for DMP nodes ....................................... 158
Administering DMP using vxdmpadm ............................................ 159
Retrieving information about a DMP node ................................. 160
Displaying consolidated information about the DMP nodes .......... 161
Displaying the members of a LUN group ................................... 163
Displaying paths controlled by a DMP node, controller, enclosure,
or array port .................................................................. 164
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