Emerson ATCA-S201 manual Advanced iSCSI configuration expert mode

RTM-ATCA-SXXX Overview

7.1.5Advanced iSCSI configuration (expert mode)

The iSCSI service running on the storage blade supports numerous configuration options that appear in the iSCSI section of web interface tool. Users may modify any number of parameters listed, and then click the ‘submit’ button located at the top of the page.

Note: Users may undo all changes and re-apply the default settings by clicking the ‘Target Default settings’ button.

Target Default Settings

Alternatively, iSCSI configuration options may be set via simple edits to a text based configuration file /etc/ietd.conf using a console window.

The configuration file contains an entry for each target entry created by the web or cli tools. The file contains a stanza style entry for each iSCSI target that begins with the parameter name: “Target”. The file syntax is explained in the next section. File changes become active at next reboot or by re-starting the iSCSI service (as root):

/etc/rc.d/init.d/iscsi stop /etc/rc.d/init.d/iscsi start

Sample ietd.conf file for iSCSI targets

Notes: Comment lines must start with a ‘#’ as first character.

A line may extend across multiple lines if last character is backslash ‘\’ Parameter values are case sensitive: "Yes" and "No"

Parameter names are case insensitive.

The file consists of a global part and zero or more "Target" stanzas.

Everything before the first Target definition belongs to the global configuration.

#iSCSI target configuration file ietd.conf

#
Target iqn.1995-07.com.emerson:BladeHost.Target0
IncomingUser		NoAlias
OutgoingUser
Alias	1	NoAlias
#MaxConnections		No
InitialR2T		No
ImmediateData	262144	Yes
MaxRecvDataSegmentLength
MaxXmitDataSegmentLength	262144
#MaxBurstLength	262144
#FirstBurstLength	65536
#DefaultTime2Wait	2
#DefaultTime2Retain	20
#MaxOutstandingR2T	8
#DataPDUInOrder	1
#DataSequenceInOrder	1
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