HP 3PAR Solaris Implementation Guide

1. For Solaris 10 only, edit the /kernel/drv/scsi_vhci.conf file and add the following
entry to enable Solaris I/O multipathing globally on all the HP 3PAR StoreServ Storage target
ports:
device-type-scsi-options-list =
"3PARdataVV", "symmetric-option",
"3PARdataSES", "symmetric-option";
symmetric-option = 0x1000000;
2. For Solaris 10 and 11, make sure that multipathing is enabled in the iSCSI configuration file
/kernel/drv/iscsi.conf; it is enabled by default and should match the following
example:
name="iscsi" parent="/" instance=0;
ddi-forceattach=1;
mpxio-disable="no";
3. Reboot the system after enabling multipathing.
# reboot -- -r
Or
ok> boot -r
WARNING! If you are using Solaris multipath I/O (Solaris StorEdge Traffic Manager), HP
advises that you not reuse a LUN number to export a different HP 3PAR StoreServ Storage
volume, as Solaris format output preserves the disk serial number of the first device ever seen
on that LUN number since the last reboot. Any I/O performed on the older disk serial number
causes the I/O to be driven to the new volume and can cause user configuration and data
integrity issues. This is a general Solaris issue with Solaris multipath I/O and is not specific
to HP 3PAR StoreServ Storage target.
Setting Up Multipathing Using Solaris StorEdge Traffic Manager 49