Coexistence of IBM System Storage Multipath Subsystem Device Driver (SDD) and PVLinks on HP 9000 and HP Integrity servers
If you want to use physical volume links (PVLinks) for multipathing a volume while the IBM® System Storage® Multipath Subsystem Device Driver (SDD) is installed, you must ensure that SDD does not configure a vpath for that volume.
To do this, add the serial number of any volumes that you want SDD to ignore to the /etc/vpathmanualexcl.cfg file.
Note: If
you are using the SAN boot function, SDD automatically
ignores the boot volume.