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itadm create-target [-a,--auth-method radius | chap | none | default] [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] [-n,--node-name target_node_name] [-l,--alias alias] [-t,--tpg tpg-name[,tpg-name]]
itadm modify-target [-a,--auth-method radius | chap | none | default] [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] [-n,--node-name new_target_node_name] [-l,--alias alias] [-t,--tpg tpg-name[,tpg-name]] target_node_name
itadm delete-target [-f,--force] target_node_name
itadm list-target [-p,--parsable] [-v,--verbose] [target_node_name]
itadm create-tpg tpg_name IP-address[:port] [IP-address[:port]]...
itadm list-tpg [-p,--parsable] [-v,--verbose] [tpg_name]
itadm delete-tpg [-f,--force] tpg_name
itadm create-initiator [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] initiator_node_name
itadm modify-initiator [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] initiator_node_name
itadm list-initiator [-p,--parsable] [-v,--verbose] initiator_node_name
itadm delete-initiator initiator_node_name
itadm modify-defaults [-a,--auth-method radius | chap | none] [-r,--radius-server IP-address[:port]] [-d,--radius-secret] [-D,--radius-secret-file path][-i,--isns enable | disable] [-I,--isns-server IP-address[:port][,IP-address[:port]]]
itadm list-defaults [-p,--parsable]
The itadm command manages Internet SCSI (iSCSI) target nodes within the SCSI Target Mode Framework described in stmfadm(8) and libstmf(3LIB). This allows the iSCSI initiators to access STMF logical units using the iSCSI protocol. In addition to iSCSI target nodes, itadm manages two other classes of managed objects: iSCSI Target Portal Groups, and iSCSI Initiator Node Contexts.
itadm is implemented as a set of subcommands with options and operands for each subcommand. These subcommands are described in their own section, below. In addition to its subcommands, itadm has a help command, which displays the utility's usage information. The help command is invoked with the -? option.
An iSCSI Target Network Portal is an IP address and TCP port that can be used by an initiator node to connect to an iSCSI target. A collection of these portals is called a Target Portal Group (TPG). You can use a TPG to limit access to an iSCSI target. Use the itadm modify -t command to bind a specific iSCSI target to the TPG. An iSCSI listener is created on each IP address that belongs to the TPG, and listens for connections to the iSCSI target.
A TPG is identified by a unique name provided when the TPG is created. A numerical "Target Portal Group Tag" from the range 2-65535 is automatically generated when the TPG is created. The Target Portal Group Tag 1 is reserved for the "default" target portal group that is used when no explicit Target Portal Groups are set on the target. The portal for the default TPG matches requests from all network interfaces on port 3260.
Certain operations such as authentication by means of Challenge Handshake Authentication Protocol (CHAP) require parameters associated with a remote iSCSI Initiator Node. These parameters are associated with an iSCSI Initiator Node Context. An iSCSI Initiator Node Context is identified by its Initiator Node Name, formatted in either IQN or EUI format (see RFC 3720). For example:
iqn.1986-03.com.sun:01:e00000000000.47d55444 eui.02004567A425678D
A number of itadm subcommands require that you specify one or more IP addresses with optional port numbers. For IPv4, use standard dotted decimal notation. For IPv6, enclose addresses in square brackets. The following are example specifications.
IPv4: 10.2.4.1 10.2.4.1:3260 IPv6: [1080:0:0:0:8:800:200C:417A] [1080:0:0:0:8:800:200C:417A]:3260
The following are the itadm subcommands with their options.
itadm create-target [-a,--auth-method radius | chap | none | default] [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] [-n,--node-name target_node_name] [-l,--alias alias] [-t,--tpg tpg-name[,tpg-name,...]]
Create a iSCSI target with the specified options. Options are as follows. -a,--auth-method radius | chap | none | default
Specifies the authentication method to use for the target. Valid values are radius, chap, and none. chap indicates that initiators connecting to this target must be authenticated using the Challenge Handshake Authentication Protocol (CHAP). radius indicates initiators should also be authenticated by means of CHAP but the required authentication parameters should be obtained from a central RADIUS server (see the radius-server and radius-secret options). none means that no authentication is required to connect to the target. default means the target will use the global setting of this property. (See the modify-defaults subcommand.)
The CHAP secret to send during mutual CHAP authentication. There is no default for this property. Maximum length is 255 characters; minimum required length is 12 characters.
Path to a temporary file containing the CHAP secret as described in the -s option.
Specifies the CHAP username for a target for use in mutual CHAP authentication. This value is allowed only for targets, cannot be set globally, and is used only when the initiator node is configured to use mutual CHAP authentication. If no value is specified then the target node name is used as the username. See iscsiadm(8).
An iSCSI Target Node is identified by its Target Node Name, formatted in either IQN or EUI format (see RFC 3720). This option establishes that name.
An alternate identifier associated with a target node. The identifier does not need to be unique.
A list of Target Portal Group (TPG) identifiers that specifies the TPGs that an initiator can use to access a specific target or the keyword default. If default is specified, the target will use the default portal, INADDR_ANY:3260.
itadm modify-target [-a,--auth-method radius | chap | none | default] [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] [-n,--node-name new_tgt_node_name] [-l,--alias alias] [-t,--tpg tpg-name[,tpg-name]] target_node_name
Modify an iSCSI target according to the specified options. Options are as follows. -a,--auth-method radius | chap | none | default
As described under the create-target subcommand, above.
As described under the create-target subcommand, above.
As described under the create-target subcommand, above.
As described under the create-target subcommand, above. To remove an explicitly set CHAP username use -u none.
Renames the target. See also the description of -n under the create-target subcommand, above.
As described under the create-target subcommand, above. To remove an explicitly set alias use -l none.
As described under the create-target subcommand, above.
itadm list-target [-p,--parsable] [-v,--verbose] [target_node_name]
List information about the configured targets. If target_node_name is specified, list only the information for that target. Options are as follows. -p,--parsable
Used for scripting mode. Do not print headers and separate fields by a single tab instead of arbitrary white space.
Verbose mode.
itadm delete-target [-f,--force] target_node_name
Delete the target specified by target_node_name. The target must be offline before it can be deleted. Option is as follows. -f,--force
If the target persists in an online state, this option attempts to offline the target before deleting it.
itadm create-tpg tpg_name IP-address[:port]...
Create an iSCSI target portal group made up of the specified portals and assign it the identifier tpg_name. Each portal is an IP address and port pair. IPv4 portals are specified in dotted address notation, for example, 172.31.255.255. IPv6 portal addresses must be enclosed in square brackets.
This subcommand has no options.
itadm list-tpg [-p,--parsable] [-v,--verbose] [tpg_name]
List information about the configured target portal group. If tpg_name is specified then list only the information about the target portal group associated with that tpg_name. Options are as follows. -p,--parsable
Used for scripting mode. Do not print headers and separate fields by a single tab instead of arbitrary white space.
Verbose mode.
itadm delete-tpg [-f,--force] tpg_name
Delete the target portal group associated with tpg_name. Option is as follows. -f,--force
If the TPG is associated with any targets, the request to delete will be denied unless this option is specified.
itadm create-initiator [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] initiator_node_name
Configure parameters associated with the remote initiator named initiator_node_name. Options are as follows. -s,--chap-secret
As described under the create-target subcommand, above.
As described under the create-target subcommand, above.
Specifies the CHAP username for an initiator, for use in CHAP authentication. If no value is specified then the initiator node name is used as the username.
itadm modify-initiator [-s,--chap-secret] [-S,--chap-secret-file path] [-u,--chap-user chap-user-name] initiator_node_name
Modify parameters associated with the remote initiator named initiator_node_name. Options are as follows. -s,--chap-secret
As described under the create-target subcommand, above.
As described under the create-target subcommand, above.
Specifies the CHAP username for an initiator, for use in CHAP authentication. If no value is specified then the initiator node name is used as the username.
itadm delete-initiator initiator_node_name
Delete parameters associated with the remote initiator named initiator_node_name. This subcommand has no options.
itadm list-initiator [-p,--parsable] [-v,--verbose] initiator_node_name
List parameters associated with the initiator named initiator_node_name. Options are as follows. -p,--parsable
Used for scripting mode. Do not print headers and separate fields by a single tab instead of arbitrary white space.
Verbose mode.
itadm modify-defaults [-a,--auth-method radius | chap | none] [-r,--radius-server IP-address[:port]] [-d,--radius-secret] [-D,--radius-secret-file path][-i,--isns enable | disable] [-I,--isns-server IP-address[:port][,IP-address[:port]]]
Modify default parameters. Options are as follows. -a,--auth-method radius | chap | none
Specifies the default authentication method to use for all targets. Valid values are radius, chap, and none. chap indicates that initiators connecting to this target must be authenticated using Challenge Handshake Authentication Protocol (CHAP). radius indicates initiators should also be authenticated by means of CHAP, but the required authentication parameters should be obtained from a central RADIUS server. (See --radius-server and --radius-secret options.) none means that no authentication is required to connect to the target. Individual targets can override this global setting using the -a option of the create-target and modify-target subcommands.
RADIUS Shared Secret for centralized CHAP authentication.
Path to a temporary file containing the CHAP secret as described in the -d option.
Specifies whether targets should be registered with the set of defined iSCSI Name Service (iSNS) servers.
Defines a list of iSNS servers with which iSCSI target nodes will be registered when the isns option associated with the respective target is set. Up to eight iSNS servers can be specified. To remove all iSNS servers, use -I none.
Specify the IP address of the RADIUS server used for centralized CHAP authentication.
itadm list-defaults [-p,--parsable]
List information about the default properties. Option is as follows. -p,--parsable
Used for scripting mode. Do not print headers and separate fields by a single tab instead of arbitrary white space.
Example 1 Creating a Target
The following command creates a target.
# itadm create-target Target iqn.1986-03.com.sun:02:72e1b181-7bce-c0e6-851e-ec0d8cf14b7a successfully created
Example 2 Creating a Target with a Specific Name
The following command creates a target with a specific IQN.
# itadm create-target -n eui.20387ab8943ef7548 or: # itadm create-target \e -n iqn.1986-03.com.sun:02:a9a366f8-cc2b-f291-840948c7f29e
Example 3 Changing a Name
The following command changes an IQN for an existing target.
# itadm modify-target -n eui.20387ab8943ef7548 \e
iqn.1986-03.com.sun:02:a9a366f8-909b-cc2b-f291-840948c7f29e
Example 4 Setting up CHAP Authentication
The following command sets up CHAP authentication for a target using the default CHAP username.
# itadm modify-initiator -s iqn.1986-03.com.sun:01:e00000000000.47d55444 Enter CHAP secret: ********* Re-enter secret: ********* # itadm modify-target -a chap eui.20387ab8943ef7548
Example 5 Creating Target Portal Groups
The following command creates two target portal groups, A and B, using port 8000 for the addresses in TPG 2.
# itadm create-tpg A 192.168.0.1 192.168.0.2 # itadm create-tpg B 192.168.0.2:8000 192.168.0.2:8000
Example 6 Configuring a Target to Use TPGs
The following command configures a target to use TPGs A and B.
# itadm modify-target -t A,B eui.20387ab8943ef7548
Example 7 Setting up RADIUS Authentication for Specific Target
The following command sets up RADIUS authentication for a specific target.
# itadm modify-defaults -r 192.168.10.1 -d Enter RADIUS secret: ********* Re-enter secret: ********* # itadm modify-target -a radius eui.20387ab8943ef7548
Example 8 Setting up RADIUS Authentication for All Targets
The following command sets up RADIUS authentication for all targets.
# itadm modify-defaults -d -r 192.168.10.1 -a radius Enter RADIUS secret: ********* Re-enter secret: *********
The preceding command assumes all targets were created with -a default.
Example 9 Listing Default Properties
The following command lists default properties.
# itadm list-defaults iSCSI Target Default Properties: alias: none auth: none radiusserver: none radiussecret: unset isns: disabled isnsserver: 2.3.4.5,4.5.6.7
Example 10 Listing Targets
The following command lists targets.
# itadm list-target TARGET NAME STATE SESSIONS iqn.1986-03.com.sun:02:72e1b181-7bce-c0e6-851e-ec0d8cf14b7a online 0 iqn.1986-03.com.sun:02:2cb0c526-c05a-e279-e396-a367006f4227 online 0 iqn.1986-03.com.sun:02:d14125bb-1c9d-c28d-97b0-f89259b642f3 online 0 iqn.1986-03.com.sun:02:03ff9fc5-794a-e9b4-a081-bb82917c292a online 0
Example 11 Listing Targets (Verbose)
The following command lists targets with the verbose option.
# itadm list-target -v TARGET NAME STATE SESSIONS iqn.1986-03.com.sun:02:d23e68d8-2d79-c988-98e7-a6361689d33c online 0 alias: - auth: none (defaults) targetchapuser: - targetchapsecret: unset tpg-tags: default iqn.1986-03.com.sun:02:94ec46d4-c8e1-6993-ef03-ffc1dcd66606 online 1 alias: - auth: chap targetchapuser: - targetchapsecret: unset tpg-tags: nge1_ipv4 = 3
Example 12 Listing a Specific Target
The following command lists targets with the verbose option.
# itadm list-target -v \e iqn.1986-03.com.sun:02:2cb0c526-c05a-e279-e396-a367006f4227 TARGET NAME STATE SESSIONS iqn.1986-03.com.sun:02:2cb0c526-c05a-e279-e396-a367006f4227 online 1 alias: - auth: chap targetchapuser: - targetchapsecret: unset tpg-tags: nge1_ipv4 = 3
See attributes(7) for descriptions of the following attributes:
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
| Interface Stability Committed |
libstmf (3LIB), attributes (7), iscsiadm (8), stmfadm (8)