Managing Portals - HP StorageWorks 2000s User Manual

3. Assign one or more available LUs to the host and assign access rights for each.
If you change the access rights for a host, you must go to your initiator software and re-
login to the server in order for the change to take effect. If you are using the Microsoft
iSCSI initiator, you need to launch the initiator software on the host machine and log off
(from the Active Sessions tab) and then log on (from the Available Targets tab). This
will temporarily disconnect the host.
NOTE: In order for an existing host to access this newly assigned LU, you will have to take
operating system-specific actions in order for the host to see the new storage. For
example, with Windows you must rescan disks via the system's Computer Management
(available through the Control Panel). You will then need to write a signature, create a
partition, and format the drive so that the host can use it.

Managing Portals

Portals are access points used by hosts to communicate with the iSCSI Feature Pack. Each
portal is a combination of an IP address, port number, and port group number.
The iSCSI Feature Pack assigns each new host one portal for each NIC IP address used by
the iSCSI Feature Pack. By default, the portal is a combination of the default iSCSI port
number 3260 and group 0. This default can be changed through the Default Portal
Template from the Configuration screen.
You may want to customize the portals for a specific host. For example, if you have four
NICs, you may want to assign two for your messaging server and two for your database so
that the communication traffic from one host does not overwhelm the other. Taking this
example further, you can put the NICs for your messaging server in the same group or in two
different groups. If they are in the same group, the host will communicate via both NICs,
providing redundancy should one NIC fail. If the NICs are put into separate groups, there will
be two independent paths with no redundancy.
You may also need to modify the port number that your portal uses. This would be
necessary if the default port number (3260) is used by another application or if your firewall
blocks the default port number.
NOTE: You should take care to remove any non-active portals from the list of portals for the
host. Otherwise, the host may encounter connection problems.
To add/delete the portals for a host:
1. On the Host screen, click the checkbox to the left of the host that you want to manage.
2. Click Portals.
A list of existing portals is displayed.
HP StorageWorks iSCSI Feature Pack User Guide
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