System information

This command displays the session/device state, session ID (sid), some negotiated parameters, and

the SCSI devices accessible through the session.

For shorter output (for example, to display only the sid-to-node mapping), run:

# iscsiadm -m session -P 0

# iscsiadm -m session

These commands print the list of running sessions with the format:

driver [sid] target_ip:port,target_portal_group_tag proper_target_name

Examp le 25.1. O ut p u t o f t h e i sci sad m -m sessi o n comman d

For example:

# iscsiadm -m session

tcp [2] 10.15.84.19:3260,2 iqn.1992-08.com.netapp:sn.33615311

tcp [3] 10.15.85.19:3260,3 iqn.1992-08.com.netapp:sn.33615311

For more information about the iSCSI API, refer to /usr/share/d o c/i scsi -i ni ti ato r-

uti l s-version/R EAD ME.

25.2.2. iSCSI T arget Set up

Ad d a new t arg et

To add a new iSCSI target edit the /etc/tg t/targ ets. co nf configuration file. This file contains

many examples of different configuration options that have been commented out.

A basic target may be defined as:

Examp le 25.2. A basic t arg et

backing-store /srv/images/iscsi-share.img

direct-store /dev/sdd

</target>

This example defines a single target with two LUNs. LUNs are described with either the backing-store

or direct-store directives where backing-store refers to either a file or a block device, and direct-store

refers to local SCSI devices. Device parameters, such as serial numbers and vendor names, will be

passed through to the new iSCSI LUN.

St art in g t h e t g t d service

To start the tgtd service, run:

⁠Chapt er 2 5. O nline St orag e Manag ement

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