Installing and Configuring the Linux Host with the QLogic Driver

Failover-specific parameters

ql2xintrdelaytimer: defines the amount of time for the firmware to wait before generating an interrupt to the host as notification of the request completion.

retry_gnnft: defines the number of times to retry GNN_FT in order to obtain the Node Name and PortID of the device list.

ConfigRequired: If set to 1, then only devices configured and passed through the ql2xopts parameter are presented to the OS.

Bind: defines the method for target persistent binding method. If set to 0, then the Portname is used; if set to 1, the PortID is used.

ql2xsuspendcount: defines the number of 6-second suspend iterations to perform while a target returns a NOT_READY status.

ql2xdevflag: defines whether to display the abbreviated persistent binding statements.

qfull_retry_count: defines the number of retries to perform on a queue full status from a device.

qfull_retry_delay: defines the number of seconds to delay on queue full status from a device.

extended_error_logging: defines whether to enable extended error logging.

ql2xplogiabsentdevice: defines whether to enable a PLOGI to devices that are not present after a fabric scan. Per QLogic, this is needed for several broken switches.

ql2xfdmienable: defines whether FDMI registration is enabled.

qlogin_retry_count: defines whether the login retry count will be modified.

ql2xioctltimeout: defines the IOCTL timeout value in seconds for pass-through commands.

ql2xprocessnotready: defines whether the driver handles

NOT_READYs.

ql2xuseextopts: defines whether the driver will use the extended options saved in the module object itself, even if a string is defined via ql2xopts.

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.

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EMC Host Connectivity with QLogic FC and iSCSI HBAs and FCoE CNAs for the Linux Environment

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EMC P/N 300-002-803 manual Failover-specific parameters