Administrator Guide

Novell Netware
Servers running Novell Netware require that the portdown value be recongured to allow enough time for the controllers to fail over.
To the end of the Fibre Channel driver load line of nwserver/startup.ncf add :
/LUNS /ALLPATHS /ALLPORTS /PORTDOWN=60
Red Hat Enterprise Linux
Timeout values determine the time a server waits before destroying a connection after losing connectivity. With a single-path conguration
that value should be set to 60 seconds to allow the WWN of the failed port to transfer to a port on the other controller. With a multipath
conguration the timeout value should be set to 5 seconds because the ports will fail over immediately. Congure the timeout values as
shown below based on the manufacturer of the HBA card and the path conguration.
Version 5.x
Congure these timeout values for servers running RHEL version 5.x. The settings vary based on the manufacturer of the HBA card.
Add one of these settings to the end of the le /etc/modprobe.conf based on the manufacturer of the HBA card.
Qlogic HBA Settings
Path
Conguration Timeout Setting
Single Path options qla2xxx qlport_down_retry=60
Multipath options qla2xxx qlport_down_retry=5
Emulex HBA Settings
Path
Conguration Timeout Setting
Single Path options lpfc lpfc_devloss_tmo=60
Multipath options lpfc lpfc_devloss_tmo=5
Version 6.x
Changing HBA settings in RHEL version 6.x requires the creation of a new conguration le that contains the settings in the table below.
For Qlogic HBA cards, create a conguration le in /etc/modprobe.d/ named qla2xxx.conf that contains one of the following parameters.
Qlogic HBA Settings
Path
Conguration Timeout Setting
Single Path options qla2xxx qlport_down_retry=60
Multipath options qla2xxx qlport_down_retry=5
For Emulex HBA cards, create a conguration le in /etc/modprobe.d/ named lpfc.conf that contains one of the following parameters.
HBA Server Settings
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