Veritas Volume Manager 5.0 Release Notes HP-UX 11i v3 (5992-1952, August 2011)

The output from the vxdisk list command now displays a list of devices following the agile
naming scheme of the operating system instead of the DMP metanode names
For example:
# vxdisk list
DEVICE TYPE DISK GROUP STATUS
disk155 auto:LVM - - LVM
disk156 auto:LVM - - LVM
disk224 auto:cdsdisk - - online
disk225 auto:cdsdisk - - online
disk226 auto:cdsdisk - - online
disk227 auto:hpdisk - - online
disk228 auto:hpdisk - - online
disk229 auto:hpdisk - - online
This procedure essentially instructs DMP to bypass all auto-configured devices. As a result, no DMP
metanodes are created under /dev/vx/[r]dmp directory. VxVM names these devices according
to their corresponding agile or persistent device special files (DSFs) assigned by the operating
system.
CAUTION: Foreign devices are not supported as cluster-sharable disks. Do not perform this
procedure on systems that require clustering features of VxVM (CVM).
NOTE: Irrespective of the mode set, if you use the vxddladm or the vxdisk list commands,
only the new style DSFs are displayed after migrating to HP-UX native multipathing. Enclosure-based
naming scheme is not supported for foreign devices.
NOTE: Administrative commands, such as vxdmpadm iostat or vxdmpadm setattr, which
operate on the level of enclosures, controllers or dmpnodes, are not supported and will not work
with foreign devices
Migrating from DMP to HP-UX native multipathing for systems that have VxVM root disks
Foreign devices are not supported as cluster-sharable disks. You cannot use this procedure on
systems requiring clustering features of VxVM (CVM).
To migrate from DMP to HP-UX native multipathing, complete the following procedure:
1. To migrate to agile addressing mode, enter the following command:
# vxddladm set namingscheme=osn mode=new
2. To initiate the migration, enter the following command:
# vxddladm addforeign blockpath=/dev/disk/<root disk>
charpath=/dev/rdisk/<rootdisk>
Following are the message that are displayed:
VxVM vxddladm INFO V-5-1-0 Transactions are disabled until the
reboot.
VxVM vxddladm INFO V-5-1-0 Root device has been added to foreign
device category changes will be effective only after reboot
VxVM vxddladm INFO V-5-1-0 Please reboot the system
3. Restart the system.
4. Complete the procedure listed in the Migrating from DMP to HP-UX native multipathing for
systems that do not have VxVM root disks section.
NOTE: Administrative commands which operate on the level of enclosures, controllers or
dmpnodes, such as, vxdmpadm iostat, vxdmpadm setattr, are not supported and will not
work correctly on foreign devices.
Migrating from HP-UX native multipathing to DMP for systems that do not have VxVM root disks
16 Veritas Volume Manager 5.0 Release Notes