Novell LINUX ENTERPRISE SERVER 11 - STORAGE ADMINISTRATION GUIDE 2-23-2010, Руководство администратора, Страница: 124 / 140

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ietadm can also be used to change various configuration parameters. Obtain a list of the global
variables with
ietadm --op show --tid=1 --sid=0
. The output looks like:
InitialR2T=Yes
ImmediateData=Yes
MaxConnections=1
MaxRecvDataSegmentLength=8192
MaxXmitDataSegmentLength=8192
MaxBurstLength=262144
FirstBurstLength=65536
DefaultTime2Wait=2
DefaultTime2Retain=20
MaxOutstandingR2T=1
DataPDUInOrder=Yes
DataSequenceInOrder=Yes
ErrorRecoveryLevel=0
HeaderDigest=None
DataDigest=None
OFMarker=No
IFMarker=No
OFMarkInt=Reject
IFMarkInt=Reject
All of these parameters can be easily changed. For example, if you want to change the maximum
number of connections to two, use
ietadm --op update --tid=1 --params=MaxConnections=2.
In the file
/etc/ietd.conf
, the associated line should look like
MaxConnections 2
.
WARNING: The changes that you make with the
ietadm
utility are not permanent for the system.
These changes are lost at the next reboot if they are not added to the
/etc/ietd.conf
configuration
file. Depending on the usage of iSCSI in your network, this might lead to severe problems.
There are several more options available for the
ietadm
utility. Use
ietadm -h
to find an overview.
The abbreviations there are target ID (tid), session ID (sid), and connection ID (cid). They can also
be found in
/proc/net/iet/session
.
13.3 Configuring iSCSI Initiator
The iSCSI initiator, also called an iSCSI client, can be used to connect to any iSCSI target. This is
not restricted to the iSCSI target solution explained in
Section 13.2, “Setting Up an iSCSI Target,”
on page 119 . The configuration of iSCSI initiator involves two major steps: the discovery of
available iSCSI targets and the setup of an iSCSI session. Both can be done with YaST.
Š
Section 13.3.1, “Using YaST for the iSCSI Initiator Configuration,” on page 125
Š
Section 13.3.2, “Setting Up the iSCSI Initiator Manually,” on page 127
Š
Section 13.3.3, “The iSCSI Client Databases,” on page 127
Š
Section 13.3.4, “For More Information,” on page 129