EMC QLogic Guide d'installation télécharger pdf (Page 49)

QLogic v8.x-series driver parameters

Installing and Configuring the QLogic HBA and v8.x-Series Driver

◆ ql2xintrdelaytimer: defines the amount of time for the

firmware to wait before generating an interrupt to the host as

notification of the request completion.

◆ ql2xenablezio: defines whether to enable ZIO functionality.

◆ ql2xplogiabsentdevice: defines whether to enable a PLOGI to

devices that are not present after a fabric scan. This is needed for

several broken switches.

◆ displayConfig: defines whether to display the current driver

configuration. If 1, then the configuration used in

/etc/modprobe.conf will be displayed.

◆ ql2xretrycount: defines the maximum number of SCSI

mid-layer retries allowed per command.

◆ qlport_down_retry: defines the maximum number of

command retries to a port that returns a PORT DOWN status.

◆ ql2xlogintimeout: defines the login timeout value in seconds,

during the initial login.

◆ ql2xmaxqdepth: defines the maximum queue depth reported to

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

outstanding requests per LUN.

◆ ql2xfailover: determines whether the failover functionality is

disabled or enabled.

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

driver.

◆ ql2xfwloadbin: enables the ability to load the HBA firmware via

the request_firmware() hotplug interface.

◆ ql2xfdmienable: defines whether FDMI registration is enabled.

Failover-specific

parameters

◆ MaxPathsPerDevice: defines the maximum number of paths to a

device.

◆ MaxRetriesPerPath: defines the number of retries to perform on

the current path before failing over to the next path in the list.

◆ MaxRetriesPerIo: defines the total number of retries to perform

before failing the command and returning a

DID_NO_CONNECT

selection timeout to the OS.

◆ qlFailoverNotifyType: defines the type of failover notification

mechanism to use when a failover or failback occurs.

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EMC QLogic Guide d'installation Page 49