Installation guide

Chapter 21. Online Storage Management
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iscsiadm -m iface -I iface_name -o update -n iface.ipaddress -v target_IP
For example, to set the iface IP address of a Chelsio card (with iface name
cxgb3i.00:07:43:05:97:07) to 20.15.0.66, use:
iscsiadm -m iface -I cxgb3i.00:07:43:05:97:07 -o update -n iface.ipaddress
-v 20.15.0.66
21.11.4. Binding/Unbinding an iface to a Portal
Whenever iscsiadm is used to scan for interconnects, it will first check the iface.transport
settings of each iface configuration in /var/lib/iscsi/ifaces. The iscsiadm utility will then
bind discovered portals to any iface whose iface.transport is tcp.
This behavior was implemented for compatibility reasons. To override this, use the -I iface_name
to specify which portal to bind to an iface, as in:
iscsiadm -m discovery -t st -p target_IP:port -I iface_name -P 1
3
By default, the iscsiadm utility will not automatically bind any portals to iface configurations that
use offloading. This is because such iface configurations will not have iface.transport set to
tcp. As such, the iface 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 iface. To do so, use default 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 iface, use:
iscsiadm -m node -targetname proper_target_name -I iface0 --op=delete
5
To delete all bindings for a specific iface, 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 iface configurations defined in /var/lib/iscsi/iface and the -I option is
not used, iscsiadm will allow the network subsystem to decide which device a specific portal
should use.
21.12. Scanning iSCSI Interconnects
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.
5
Refer to Section 21.12, “ Scanning iSCSI Interconnects” for information on proper_target_name.