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Fibre Channel and FCoE out of kernel driver versions
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Installing and Configuring the Linux Host with the QLogic Driver
4. Reboot the host.
QLogic v7.x and v8.x series driver parameters
The QLogic driver contains a number of parameters that may be
modified to perform failover functionality or to enhance
performance.
QLogic v7.x series driver parameters
The QLogic and EMC recommended values are in Table 6 and
descriptions of the parameters follow the table.
The values to which these parameters are set are dependent upon the
environment and the type of applications and subsequent I/O being
used on the system. Currently, the values in the EMC default
recommendations column apply to both PowerPath and non-HA
connections. Keep in mind that these are merely guidelines as each
environment differs.
Note: EMC does not support the failover functionality within the QLogic
driver. As a result, parameters related to the failover functionality are not
used by EMC.
The changes to the parameters do not take effect until the driver is
reloaded or the host is rebooted.
Note: 0 = disabled; 1 = enabled
Table 6 QLogic v7.x series driver parameters (page 1 of 3)
Parameters QLogic default values EMC default recommendations
ql2xopts <string> <string>
General driver parameters:
ql2xfailover 0 0
ql2xmaxqdepth 32 32
ql2xmaxsectors 512 512
ql2xmaxsgs 32 32
ql2xlogintimeout 20 seconds 20 seconds