Cisco UCS Manager GUI Configuration Guide, 1.0(2)
Configuring WWN Pools
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Configuring WWN Pools

This chapter includes the following sections:

WWN Pools

A WWN pool is a collection of WWNs for use by the Fibre Channel vHBAs in a Cisco UCS instance. You create separate pools for the following:


  • WW node names assigned to the server

  • WW port names assigned to the vHBA

Important:

A WWN pool can include only WWNNs or WWPNs in the ranges from 20:00:00:00:00:00:00:00 to 20:FF:FF:FF:FF:FF:FF:FF or from 50:00:00:00:00:00:00:00 to 5F:FF:FF:FF:FF:FF:FF:FF. All other WWN ranges are reserved.

If you use WWN pools in service profiles, you do not have to manually configure the WWNs that will be used by the server associated with the service profile. In a system that implements multi-tenancy, you can use a WWN pool to control the WWNs used by each organization.

You assign WWNs to pools in blocks. For each block or individual WWN, you can assign a boot target.

WWNN Pools

A WWNN pool is a WWN pool which contains only WW node names. If you include a pool of WWNNs in a service profile, the associated server is assigned a WWNN from that pool.

WWPN Pools

A WWPN pool is a WWN pool which contains only WW port names. If you include a pool of WWPNs in a service profile, the port on each vHBA of the associated server is assigned a WWPN from that pool.

Creating a WWNN Pool

Important:

A WWN pool can include only WWNNs or WWPNs in the ranges from 20:00:00:00:00:00:00:00 to 20:FF:FF:FF:FF:FF:FF:FF or from 50:00:00:00:00:00:00:00 to 5F:FF:FF:FF:FF:FF:FF:FF. All other WWN ranges are reserved.

Procedure
Step 1   In the Navigation pane, click the SAN tab.
Step 2   In the SAN tab, expand SAN > Pools .
Step 3   Expand the node for the organization where you want to create the pool.

If the system does not include multi-tenancy, expand the root node.

Step 4   Right-click WWNN Pools and select Create WWNN Pool.
Step 5   In the Define Name and Description page of the Create WWNN Pool wizard:
  1. Enter a unique name and description for the WWNN Pool.

    This name can be between 1 and 16 alphanumeric characters. You cannot use spaces or any special characters, and you cannot change this name after the object has been saved.

  2. Click Next.
Step 6   In the Add WWN Blocks page of the Create WWNN Pool wizard:
  1. Click Add.
  2. In the Create WWN Block page, complete the following fields:

    • In the From field, enter the first WWNN in the pool.

    • In the Size field, enter the number of WWNNs to include in the pool.

  3. Click Finish Stage.
  4. Do one of the following:

    • Repeat steps a through c to add another block to the pool.

    • Click Next to move to the next page.

Step 7   In the Add Individual WWN page of the Create WWNN Pool wizard:
  1. Click Add.
  2. In the World Wide Name field, enter the WWNN initiator.
  3. In the Name field, enter a unique name for the WWNN initiator.
  4. In the Description field, enter a description of the WWNN initiator.
  5. Click Add to expand the Boot Target area.
  6. In the Boot Target WWNN field, enter the WWNN associated with the initiator.
  7. In the Boot Target LUN field, enter the unique identifier for the LUN associated with the initiator.
  8. Click OK.
Step 8   Click Finish.

Deleting a WWNN Pool

Procedure
Step 1   In the Navigation pane, click the SAN tab.
Step 2   In the SAN tab, expand SAN > Pools > Organization_Name .
Step 3   Expand the WWNN Pools node.
Step 4   Right-click the WWNN pool you want to delete and select Delete.
Step 5   If Cisco UCS Manager displays a confirmation dialog box, click Yes.

Creating a WWPN Pool

Important:

A WWN pool can include only WWNNs or WWPNs in the ranges from 20:00:00:00:00:00:00:00 to 20:FF:FF:FF:FF:FF:FF:FF or from 50:00:00:00:00:00:00:00 to 5F:FF:FF:FF:FF:FF:FF:FF. All other WWN ranges are reserved.

Procedure
Step 1   In the Navigation pane, click the SAN tab.
Step 2   In the SAN tab, expand SAN > Pools .
Step 3   Expand the node for the organization where you want to create the pool.

If the system does not include multi-tenancy, expand the root node.

Step 4   Right-click WWPN Pools and select Create WWPN Pool.
Step 5   In the Define Name and Description page of the Create WWN Pool wizard:
  1. Enter a unique name and description for the WWPN Pool.

    This name can be between 1 and 16 alphanumeric characters. You cannot use spaces or any special characters, and you cannot change this name after the object has been saved.

  2. Click Next.
Step 6   In the Add WWN Blocks page of the Create WWPN Pool wizard:
  1. Click Add.
  2. In the Create WWN Block page, complete the following fields:

    • In the From field, enter the first WWPN in the pool.

    • In the Size field, enter the number of WWPNs to include in the pool.

  3. Click Finish Stage.
  4. Do one of the following:

    • Repeat steps a through c to add another block to the pool.

    • Click Next to move to the next page.

Step 7   In the Add Individual WWN page of the Create WWPN Pool wizard:
  1. Click Add.
  2. In the World Wide Name field, enter the WWPN initiator.
  3. In the Name field, enter a unique name for the WWPN initiator.
  4. In the Description field, enter a description of the WWPN initiator.
  5. Click Add to expand the Boot Target area.
  6. In the Boot Target WWPN field, enter the WWPN associated with the initiator.
  7. In the Boot Target LUN field, enter the unique identifier for the LUN associated with the initiator.
  8. Click OK.
Step 8   Click Finish.
What to Do Next

Include the WWPN pool in a vHBA template.

Deleting a WWPN Pool

Procedure
Step 1   In the Navigation pane, click the SAN tab.
Step 2   In the SAN tab, expand SAN > Pools > Organization_Name .
Step 3   Expand the WWPN Pools node.
Step 4   Right-click the WWPN pool you want to delete and select Delete.
Step 5   If Cisco UCS Manager displays a confirmation dialog box, click Yes.