Installation guide

AIX - Installation Instructions-
18 Fourth Edition 96107
StorageTek Proprietary
hdisk2 Available 20-58-05 STK Universal XPort
hdisk3 Available 10-68-01-01 Storagetek BladeStore with Path Failover
hdisk4 Available 10-68-02-01 Storagetek BladeStore with Path Failover
hdisk5 Available 10-68-03-01 Storagetek BladeStore with Path Failover
hdisk6 Available 10-68-04-01 Storagetek BladeStore with Path Failover
The STK Universal XPort entries are for the access volumes/LUNs.
IF YOU ARE NOT USING THE FAILOVER SOLUTION, THE INSTALLATION
IS COMPLETE. Proceed to the “Performance considerations” section on
page 22. The following sections cover the failover solution.
If using the failover solution, run the command:
/usr/lpp/cbxdpf/dpfutil listall
This will display all paths with preferred paths under Active:
Device Active Standby
hdisk1 cbx0 (fscsi0 0,0) cbx4 (fscsi1 0,0)
hdisk2 cbx1 (fscsi0 0,1) cbx5 (fscsi1 0,1)
hdisk3 cbx6 (fscsi1 0,2) cbx2 (fscsi0 0,2)
hdisk4 cbx7 (fscsi1 0,3) cbx3 (fscsi0 0,3)
Default Primary Path and Advanced Configurations
There are other DPF commands (via DPFutil / SMIT) that are not documented
here. We strongly suggest using only the commands specified within this
document. Modifying other settings incorrectly within the DPF failover driver
may prevent the automatic recovery process from doing its operations
correctly.
These other commands, that are available but not documented here, deal with
administrating preferred/primary paths. The default primary path is the one
specified on the array when creating the volume/LUN (the owning controller/
preferred path). This default primary path is not displayed by these
undocumented commands. When you run the DPFutil listall command, you
will see that the active path matches this default primary path that is
administered on the array. This default adminstration should be sufficient for
most installations.
If implementing an advanced configuration where multiple paths to the same
controller exist (more than two paths to LUN configuration), then these
undocumented administration commands can be used to manually administer/
distribute the primary paths across all of the available paths to the same
controller, or bypass certain paths (like switch interlink connections) as a
primary path. If you are an advanced user, you should limit your changes to
ONLY administrating the primary path. You should not attempt to force path
movement since this will have bad interactions with the background