Right, Im a little bit thick when it comes to SAN IVe got a dual port qlc in a solaris 10 server. Its all connected and I can see a number of disks. The SAN guy here has asked me about preferred paths, i.e. as the dual ports are connected to two fabrics, etc device will have 4 paths. I have mpxio running on the fp devices, so only see one.
SAN guy wants me to set up, configure a preferred path ? Im not sure how to do this. Looking in the /kernel/drv directory at the various conf files, I see nothing to configure like this. All I see is hard loop ?? whats that ?
So, my question is "What is hard loop / preferred paths in regards to SAN / Solaris 10 usinbg qlc hbas ?" And "How do I configure this ?"
Administation multipathing MPXIO in solaris - man mpathadm
Find the library for your multipathing driver:
mpathadm list mpath-support
Show info for this multipathing driver
mpathadm show mpath-support libmpscsi_vhci.so
Change with command
mpathadm modify mpath-support --loadbalance 'loadbalance-type'
The loadbalance type is one of the supported types listed in the show mpath-support output.
IVe got a dual port qlc in a solaris 10 server. Its all connected and I can see a number of disks. The SAN guy here has asked me about preferred paths, i.e. as the dual ports are connected to two fabrics, etc device will have 4 paths. I have mpxio running on the fp devices, so only see one.