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QLogic v7.x and v8.x series driver parameters

Installing and Configuring the Linux Host with the QLogic Driver

Description of QLogic v7.x-series driver parameters

When attaching to CLARiiON and Symmetrix storage systems, EMC

recommends that the

ConfigRequired and ql2xfailover

parameters be set to zero.

General driver

parameters

◆ ql2xopts: string that defines additional driver options and

persistent binding info.

◆ ql2xfailover: determines whether the failover functionality is

disabled or enabled.

Note: EMC does not support the failover functionality of the QLogic

driver.

◆ ql2xmaxqdepth: defines the maximum queue depth reported to

the SCSI mid-layer per device and specifies the number of

outstanding requests per LUN.

◆ ql2xmaxsectors: defines the maximum number of sectors

reported to the SCSI mid-layer per request for the adapter.

◆ q2xmaxsgs: defines the maximum number of scatter-gather

entries reported to the SCSI mid-layer per request for the adapter.

◆ ql2xlogintimeout: defines the login timeout value in seconds,

during the initial login.

◆ qlport_down_retry: defines the maximum number of command

retries to a port that returns a PORT DOWN status.

◆ ql2xretrycount: defines the maximum number of SCSI

mid-layer retries allowed per command.

◆ max_srbs: defines the maximum number of simultaneous

commands allowed for an adapter.

◆ displayConfig: defines whether to display the current driver

configuration. If 1, then the configuration used in

/etc/modules.conf is displayed.

qlFailoverNotifyType 0 0

recoveryTime 10 seconds 10 seconds

failbackTime 5 seconds 5 seconds

Table 6 QLogic v7.x series driver parameters (page 3 of 3)

Parameters QLogic default values EMC default recommendations

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 121 122

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Qlogic QLE2362 Guía de instalación Pagina 73