Veritas Volume Manager 4.1 Troubleshooting Guide (HP-UX 11i v3, February 2007)

Chapter 6, Error Messages
Understanding Messages
95
The following example shows a vxvm.exclude file with paths c8t0d0, c8t0d1,
and c8t0d2 excluded from VxVM:
exclude_all 0
paths
c8t0d0 /0/4/0/0.8.0.108.0.0.0
c8t0d1 /0/4/0/0.8.0.108.0.0.1
c8t0d2 /0/4/0/0.8.0.108.0.0.2
#
controllers
#
product
#
pathgroups
◆ Case 2: Some arrays such as EMC and HDS provide mirroring in hardware. When
a LUN pair is split, depending on how the process is performed, this may result in
two disks with the same disk ID.
Check with your array vendor to make sure that you are using the correct split
procedure. If you know which LUNs you want to use, choose which path to
exclude, and then either edit the file /etc/vx/vxvm.exclude, or, if
vxconfigd is running, select item 1 (Suppress all paths through a
controller from VxVM’s view) or item 2 (Suppress a path from
VxVM’s view) from vxdiskadm option 17 (Prevent
multipathing/Suppress devices from VxVM’s view).
◆ Case 3: If disks have become duplicated using the dd command or any other disk
copying utility, choose which set of duplicate disks you want to exclude, and then
either edit the file /etc/vx/vxvm.exclude, or, if vxconfigd is running,
select item 1 (Suppress all paths through a controller from
VxVM’s view) or item 2 (Suppress a path from VxVM’s view) from
vxdiskadm option 17 (Prevent multipathing/Suppress devices from
VxVM’s view).