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
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 |
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Table 6 | QLogic v7.x series driver parameters (page 1 of 3) | |||
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Parameters |
| QLogic default values | EMC default recommendations | |
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ql2xopts |
| <string> | <string> | |
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| General driver parameters: |
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ql2xfailover |
| 0 |
| 0 |
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ql2xmaxqdepth |
| 32 |
| 32 |
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ql2xmaxsectors |
| 512 |
| 512 |
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ql2xmaxsgs |
| 32 |
| 32 |
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ql2xlogintimeout | 20 seconds | 20 seconds | ||
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Fibre Channel and FCoE out of kernel driver versions
79
