Solaris sees two paths to the same disk ( c2t8d0 and c3t8d0 )
To see both disk paths in solaris
# ls -las /dev/dsk/*t8do
Veritas creates only one metanode per LUN, this means that a disk with multipathing is seen as a single disk by the vxvm software.
To see the disk unique identifier (=serial number)
# /etc/vx/diag.d/vxdmpinq /dev/rdsk/c1t0d0s2
List the disks seen by veritas
# vxdisk list
To enable or disable paths use
# vxdiskadm
option 17. prevent multipathing
option 18. Allow multipathing
To list all controllers
# vxdmpadm listctlr all
To list the paths that are excluded
# vxdmpadm listexclude
To list subpaths to a specific controller to find out which devices are not functioning
# vxdmpadm getsubpaths ctrl=c1
To list all the paths for a disk
# vxdmpadm getsubpaths dmpnodename=c1t1d0s2
you will see that this disk is connected via c1 and c2
To see the disks names, how many paths there are, how many are disabled
# vxdmpadm getdmpnode enclosure=SENA0
To disable a paths
# vxdmpadm disable ctrl=c1
To verify status of all controllers
# vxdmpadm listctrl all
To enable a path again
# vxdmpadm enable ctrl=c1
To verify status do again
#vxdmpadm listctrl allow
! It will take 5 minutes before you see it is enabled again !
To speed this up do
# vxdctl enable