Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

Array WWN : 5000-1FE1-5000-2EE0
=================================================================
Lun WWN : 6005-08B4-0010-0E01-0001-B000-0287-0000
Load Balancing Policy : No Load Balancing
=================================================================
Device Path Status
=================================================================
/dev/dsk/c3t0d1 Active
/dev/dsk/c9t0d1 Active
/dev/dsk/c15t0d1 Active
/dev/dsk/c21t0d1 Active
/dev/dsk/c4t0d1 Active
/dev/dsk/c10t0d1 Active
/dev/dsk/c16t0d1 Active
/dev/dsk/c22t0d1 Active
=================================================================
Lun WWN : 6005-08B4-0010-0E01-0001-B000-028E-0000
Load Balancing Policy : No Load Balancing
=================================================================
Device Path Status
=================================================================
/dev/dsk/c3t0d2 Active
/dev/dsk/c9t0d2 Active
/dev/dsk/c15t0d2 Active
/dev/dsk/c21t0d2 Active
/dev/dsk/c4t0d2 Active
/dev/dsk/c10t0d2 Active
/dev/dsk/c16t0d2 Active
/dev/dsk/c22t0d2 Active
From the output display identify the device file listing that corresponds with the WWN of the vdisk
in the DR group.
In the above sample listing there are eight device files that correspond to different paths of the
same vdisk. Use any one of the device file names while creating a volume group, which is described
in section, “Creating Volume Groups using Source Volumes for Secure Path v3.0D, v3.0E, and
v3.0F”. The CV EVA display can be used to identify the WWN for a vdisk.
IMPORTANT: Secure Path is not supported on HP-UX 11i v3. Native Multi-pathing can be used
for multi-pathing with HP-UX 11i v3.
Identifying Special Device Files for PVLinks Configuration
LVM PVlink feature can be used to handle path failovers to a storage device. The following describes
how to identify device files for a Vdisk while setting up volume group using PVlinks. Use the RSM
HV Mapper Tool or the HP StorageWorks EVAInfo tool to display the special device files that
correspond to the WWN of the vdisk in the DR group.
For RSM HV Mapper Tool
# RSM_HV_Mapper.pl
Collecting Host Volume info might take time. Please wait.Collecting
Host Volume info from mc-node1.cup.hp.com.Collecting Host Volume info
from mc-node2.cup.hp.com.Collecting Host Volume info from
mc-node3.cup.hp.com.Collecting Host Volume info from
mc-node4.cup.hp.com.Collecting Host Volume data done.
See HostVolTable.txt for results.
The HostVolTable.txt output file provides a mapping of the devices file to vdisks for all the hosts
that are RSM enabled. In addition, the tool displays the WWID of the vdisk and the storage system
to which the vdisk belongs.
Preparing a Serviceguard Cluster for Metrocluster Continuous Access EVA 225