Nonport side of the switch
The nonport side of the switch is used solely for air flow. There are no features on
this side.
Supported fabric configurations
The switch is supported as an edge device in fabrics of up to 239 switches.
Additional port activation
The switch can be purchased with 8, 16, or 24 licensed ports. As your needs
increase, you can activate unlicensed ports by purchasing and installing the
additional 8 port activation feature. After it has been installed, the license appears
under the licenseShow command as Ports on Demand license.
The additional ports are ready to be unlocked in the switch firmware. The license
might be part of the licensed paper pack supplied with switch software, or you can
purchase the license separately from IBM, who will provide you with a key to
unlock it.
By default, ports 0 through 7 are enabled on the switch. To enable ports 8 through
16, install a Ports on Demand license key. To enable ports 16 through 24, install
another Ports on Demand license.
After you have installed the license keys, you must enable the ports. You can do so
without disrupting switch operation by using the portEnable command on each
port individually. Alternatively, you can disable and reenable the switch to activate
all ports simultaneously.
To install the additional port activation license, you can either use the supplied
license key or generate a license key. Typically the switch is shipped with a paper
pack that specifies the transaction key to use with the Software License Keys link.
Use this transaction key at the following Web site: http://www.ibm.com/servers/
storage/support/san.
1. On that page, from the Product list, select your product.
2. Select Download from the Support & downloads section.
3. From the page that is generated, select License request in the Tool/utility
section.
4. Follow the instructions on that page to generate the key. You can also use this
site to generate other license keys for your switch.
ISL Trunking groups
The switch supports Interswitch Link (ISL) Trunking as a licensed feature. When
this feature is enabled, create Trunked groups of up to 8 contiguous ports. This
means that you can create up to three trunked groups that contain 8 ports each.
The Fibre Channel ports on the switch are numbered from left to right and
color-coded within groups of eight to indicate which ports you can combine into
trunked groups.
Chapter 1. Introducing the SAN24B-4 Express switch 3
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