Red Hat ENTERPRISE LINUX - ONLINE STORAGE RECONFIGURATION GUIDE BETA Información técnica descargar pdf (Pagina 191)

This behavior was implemented for compatibility reasons. To override this, use the -I iface_name

to specify which portal to bind to an i face, as in:

# iscsiadm -m discovery -t st -p target_IP:port -I iface_name -P 1

[7]

By default, the i scsi ad m utility will not automatically bind any portals to i face configurations that

use offloading. This is because such i face configurations will not have i face. transpo rt set to

tcp. As such, the i face configurations of Chelsio, Broadcom, and ServerEngines ports need to be

manually bound to discovered portals.

It is also possible to prevent a portal from binding to any existing i face. To do so, use d efaul t as

the iface_name, as in:

# iscsiadm -m discovery -t st -p IP:port -I default -P 1

To remove the binding between a target and i face, use:

# iscsiadm -m node -targetname proper_target_name -I iface0 --op=delete

⁠

To delete all bindings for a specific i face, use:

# iscsiadm -m node -I iface_name --op=delete

To delete bindings for a specific portal (e.g. for Equalogic targets), use:

# iscsiadm -m node -p IP:port -I iface_name --op=delete

Note

If there are no i face configurations defined in /var/l i b/i scsi /i face and the -I option

is not used, i scsi ad m will allow the network subsystem to decide which device a specific

portal should use.

25.12. Scanning iSCSI Int erconnect s

For iSCSI, if the targets send an iSCSI async event indicating new storage is added, then the scan is

done automatically. Cisco MDS™ and EMC Celerra™ support this feature.

However, if the targets do not send an iSCSI async event, you need to manually scan them using the

i scsi ad m utility. Before doing so, however, you need to first retrieve the proper --targ etname and

the --po rtal values. If your device model supports only a single logical unit and portal per target,

use i scsi ad m to issue a send targ ets command to the host, as in:

# iscsiadm -m discovery -t sendtargets -p target_IP:port

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