EMC QLogic Guida di Installazione Scaricare il pdf (Pagina 81)

Fibre Channel and FCoE out of kernel driver versions

Installing and Configuring the Linux Host with the QLogic Driver

Description of QLogic v7.x-series driver parameters

When attaching to VNX series, CLARiiON, or 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 ... 76 77 78 79 80 81 82 83 84 85 86 ... 215 216

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EMC QLogic Guida di Installazione Pagina 81