HP StorageWorks X5500 Network Storage Gateway for Linux setup guide (AP811-96003, October 2009)

• Path. If the path begins with “/”, it is considered to be an absolute path. Otherwise, it is considered
to be relative to the /opt/hpcfs/lib/modules/current directory.
• Options, enclosed in double quotes, to pass to insmod when it loads the driver.
• A text description of the driver.
QLogic HBA drivers
Locate the line for your Fibre Channel Adapter device driver in the pcitable file and then add the
following options inside the double quotes:
ql2xmaxqdepth=16 qlport_down_retry=10 ql2xloginretrycount=30
ql2xfailover=0 ql2xlbType=1 ql2xautorestore=0xa0 ConfigRequired=0
If you had previously enabled QLogic failover in the file, be sure to set the ql2xfailover option
to 0. Also remove the comment character (#) if it appears at the beginning of the line.
For example:
0x1077 0x2432 qla2xxx qla2xxx-8.02.11 "ql2xfailover=0 ql2xmaxqdepth=16
qlport_down_retry=10 ql2xloginretrycount=30 ql2xlbType=1 ql2xautorestore=0xa0
ConfigRequired=0" QLogic 2432 Fibre Channel Adapter
Unloading drivers
When Device Mapper Multipath is configured on the cluster, it is necessary to remove the multipath
devices before using the pmxs unload command, which unloads the cluster service and HBA drivers.
To remove the multipath devices, run this command:
dmsetup remove_all
Then unload the cluster service and HBA drivers:
/etc/init.d/pmxs unload
If the multipath devices are not removed before running the pmxs unload command, the HBA drivers
will not be unloaded because the multipath devices are associated with storage on those adapters.
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