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Cisco MDS 9000 Fabric Manager Switch Configuration Guide
OL-7753-01
Chapter 24 Configuring IP Storage
Configuring Storage Name Services
Once a profile is tagged to an interface, the MDS switch opens a TCP connection to the iSNS server IP
address (using a well-known iSNS port number 3205) in the profile and registers network entity and
portal objects. It goes through the FC name server database and configuration to find storage nodes to
register with the server.
Statically-mapped virtual target is registered if the associated Fibre channel pWWN is present in the FC
name server database and no access control configuration prevents it. A dynamically-mapped target is
registered if the dynamic target importing is enabled.
A storage node is deregistered from the iSNS server when it becomes unavailable either because of
configuration change (such as access control change or dynamic import disabling) or when the Fibre
Channel storage port goes off-line. It will be registered again when the node is online.
When the iSNS client is unable to register/deregister objects with the iSNS server (e.g. as in unable to
make a tcp connection to the iSNS server) it retries every minute to re-registers all iSNS objects for the
affected interface(s) with the iSNS server.
Untagging a profile causes the network entity and portal to deregister from that interface.
Creating an iSNS Profile
To create an iSNS profile, follow these steps:
Step 1
Choose
End Devices > iSCSI
from the Fabric Manager Physical Attributes pane, or choose
IP > iSCSI
from Device Manager. You see the iSCSI tables in the Fabric Manager Information pane, or the Device
Manager iSCSI dialog box.
Step 2
Click the
iSNS Profiles
tab. You see the iSCSI authentication configuration table.
Step 3
Set the Name and IP
address of the iSNS server.
Step 4
Click the Fabric Manager
Apply Changes
icon (or click
Create
in Device Manager) to save these
changes, or click
Undo Changes
in Fabric Manager (or click
Cancel
in Device Manager) to discard
changes.
Modifying an iSNS Profile
To modify (tag) the iSNS profile for an interface, untag the interface from currently tagged iSNS profile
and then tag to a new iSNS profile.
To tag an interface to a profile using Device Manager, follow these steps:
Step 1
Choose
Interfaces > Ethernet or iSCSI
. You see the Interfaces dialog box.
Step 2
Click the
General
tab. You see the General interface configuration table.
Step 3
Choose the
iSNS ProfileName.
Step 4
Click
Apply
to save these changes, or click
Cancel
to discard changes.
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