Novell Netware
Servers running Novell Netware require that the portdown value be reconfigured to allow enough time for the storage systems 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 configuration
that value should be set to 60 seconds to allow the WWN of the failed port to transfer to a port on the other storage system. With a
multipath configuration the timeout value should be set to 5 seconds because the ports will fail over immediately. Configure the timeout
values as shown below based on the manufacturer of the HBA card and the path configuration.
Version 5.x
Configure 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 file
/etc/modprobe.conf
based on the manufacturer of the HBA card.
Qlogic HBA Settings
Path Configuration
Timeout Setting
Single Path
options qla2xxx qlport_down_retry=60
Multipath
options qla2xxx qlport_down_retry=5
Emulex HBA Settings
Path Configuration
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 configuration file that contains the settings in the table below.
For Qlogic HBA cards, create a configuration file in
/etc/modprobe.d/
named
qla2xxx.conf
that contains one of the following parameters.
Qlogic HBA Settings
Path Configuration
Timeout Setting
Single Path
options qla2xxx qlport_down_retry=60
Multipath
options qla2xxx qlport_down_retry=5
For Emulex HBA cards, create a configuration file in
/etc/modprobe.d/
named
lpfc.conf
that contains one of the following parameters.
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HBA Server Settings
