Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

Dynamic LUN expansion .............................................................. 119
Removing disks .......................................................................... 120
Removing a disk with subdisks ................................................ 122
Removing a disk with no subdisks ............................................ 123
Removing a disk from VxVM control .............................................. 123
Removing and replacing disks ....................................................... 123
Replacing a failed or removed disk ........................................... 127
Enabling a disk .......................................................................... 129
Taking a disk offline ................................................................... 130
Renaming a disk ......................................................................... 131
Reserving disks .......................................................................... 131
Displaying disk information ......................................................... 132
Displaying disk information with vxdiskadm ............................. 133
Controlling Powerfail Timeout ...................................................... 134
Chapter 3 Administering Dynamic Multipathing ........................... 137
How DMP works ......................................................................... 137
How DMP monitors I/O on paths ............................................. 141
Load balancing ..................................................................... 142
DMP coexistence with HP-UX native multipathing ..................... 143
DMP in a clustered environment ............................................. 146
Disabling multipathing and making devices invisible to VxVM ............ 147
Enabling multipathing and making devices visible to VxVM ............... 148
Enabling and disabling I/O for controllers and storage
processors ........................................................................... 149
Displaying DMP database information ............................................ 150
Displaying the paths to a disk ....................................................... 150
Setting customized names for DMP nodes ....................................... 152
Administering DMP using vxdmpadm ............................................ 153
Retrieving information about a DMP node ................................. 154
Displaying consolidated information about the DMP nodes .......... 155
Displaying the members of a LUN group ................................... 157
Displaying paths controlled by a DMP node, controller, enclosure,
or array port .................................................................. 158
Displaying information about controllers ................................. 160
Displaying information about enclosures .................................. 161
Displaying information about array ports ................................. 161
Displaying information about TPD-controlled devices ................. 162
Displaying extended device attributes ...................................... 163
Suppressing or including devices for VxVM or DMP control ......... 166
Gathering and displaying I/O statistics ..................................... 166
Setting the attributes of the paths to an enclosure ...................... 172
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