HP 3PAR Solaris Implementation Guide

3pardata4_5878
If the virtual volumes in use report a 16-byte WWN, the ASL extracts an AVID number of 0 for all
VVs, and Symantec sequentially enumerates the DMP devices to generate a unique DMP disk
name. In this case, the resulting disk names would be:
3pardata4_0
3pardata4_0_1
3pardata4_0_2
The name scheme used does not impact DMP functionality. However, if you want the DMP name
to contain the VV AVID number, Symantec provides updated ASLs that will properly extract the
AVID number. If AVID naming is desired, use the following ASL versions:
Storage Foundation 5.1 (all) 3PAR ASL version 5.1.104.100 or later
Storage Foundation 6.0 to 6.0.4 ASL version 6.0.100.300 or above
To confirm that the Veritas VxDMP driver has been registered to claim the HP 3PAR StoreServ
Storage, issue the Veritas vxddladm listsupport libname=libvx3par.so command.
# vxddladm listsupport libname=libvx3par.so
ATTR_NAME ATTR_VALUE
=======================================================================
LIBNAME libvx3par.so
VID 3PARdata
PID VV
ARRAY_TYPE A/A
ARRAY_NAME 3PARDATA
You can also consult the following file:
# /opt/VRTS/bin/vxddladm listversion
In order to prevent excessive I/O stall (I/O latency) during some VxDMP multipath failover/failback
events, the values for FP_OFFLINE_TIMEOUT and FCP_OFFLINE_DELAY require a change from
their default values to a value of 15 seconds:
• Tune FP_OFFLINE_TIMEOUT by adding the following entry to /kernel/drv/fp.conf:
fp_offline_ticker=15;
• Tune FCP_OFFLINE_DELAY by adding the following entry to /kernel/drv/fcp.conf
fcp_offline_delay=15;
NOTE: After editing the configuration file, perform a reconfiguration reboot of the Solaris host.
SPARC:
Issue reboot -- -r
x64/x86:
Create the /reconfigure file so that the next server boot will be a reconfiguration boot.
# touch /reconfigure
Verify the changes by issuing the following command:
echo "fp_offline_ticker /D" | mdb -k
fp_offline_ticker
fp_offline_ticker: 15
Setting Up Multipathing for the Solaris Host 33