Cisco UCS Central GUI Configuration Guide, Release 1.0
Configuring Server-Related Pools
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Configuring Server-Related Pools

Configuring Server-Related Pools

This chapter includes the following sections:

Configuring IP Pools

IP Pools

IP pools are a collection of IP addresses. You can use IP pools in Cisco UCS Central in one of the following ways:

  • For external management of Cisco UCS Manager servers.
  • For iSCSI boot initiators.
  • For both external management and iSCSI boot initiators in Cisco UCS Manager.

Note


The IP pool must not contain any IP addresses that have been assigned as static IP addresses for a server or service profile.


A fault is raised if the same IP address is assigned to two different Cisco UCS domains. If you want to use the same IP addresses, you can use the scope property to specify whether the IP addresses in the block are public or private:

  • public—The IP addresses in the block can be assigned to one and only one registered Cisco UCS domain.
  • private— The IP addresses in the block can be assigned to multiple Cisco UCS domains.

Cisco UCS Central creates public IP pools by default.

Global IP pools should be used for similar geographic locations. If the IP addressing schemes are different, the same IP pool can not be used for those sites.

Creating an IP Pool

Procedure
    Step 1   On the menu bar, click Network.
    Step 2   In the Network tab, expand Network > Pools > Root.

    If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

    Step 3   Right-click IP Pools and select Create IP Pool.
    Step 4   In the General tab of the Create IP Pool dialog box, fill in the following fields:
    Name Description

    Name field

    The name of the IP pool.

    This name can be between 1 and 32 alphanumeric characters. You cannot use spaces or any special characters other than - (hyphen), _ (underscore), : (colon), and . (period), and you cannot change this name after the object has been saved.

    Description field

    The user-defined description of the pool.

    Enter up to 256 characters. You can use any characters or spaces except ` (accent mark), \ (backslash), ^ (carat), " (double quote), = (equal sign), > (greater than), < (less than), and ' (single quote).

    Step 5   In the IP Blocks tab of the Create IP Pool dialog box, click Create a Block of IP Addresses.
    Step 6   In the Create a Block of IP dialog box, fill in the following fields:
    Name Description

    From field

    The first IP address in the block.

    Size field

    The number of IP addresses in the block.

    Subnet field

    The subnet mask associated with the IP addresses in the block.

    Default Gateway field

    The default gateway associated with the IP addresses in the block.

    Primary DNS field

    The primary DNS server that this block of IP addresses should access.

    Secondary DNS field

    The secondary DNS server that this block of IP addresses should access.

    Scope drop-down list

    Whether the IP addresses in the block can be assigned to one or more Cisco UCS domains registered with Cisco UCS Central. This can be one of the following:

    • public—The IP addresses in the block can be assigned to one and only one registered Cisco UCS domain.
    • private—The IP addresses in the block can be assigned to multiple registered Cisco UCS domains.
    Note   

    If any of the IP addresses in the block are already defined in one or more existing IP pools, Cisco UCS Central ignores the value in this field and sets the scope of all addresses in the block to the scope originally assigned to the existing IP addresses.

    Step 7   Click OK.
    Step 8   Click OK.
    Note   

    If you plan to create another pool, wait at least 5 seconds.


    What to Do Next

    Include the IP pool in a service profile and/or template.

    Deleting an IP Pool

    If you delete a pool, Cisco UCS Central does not reallocate any addresses from that pool that have been assigned to vNICs or vHBAs in Cisco UCS Manager. All assigned addresses from a deleted pool remain with the vNIC or vHBA to which they are assigned until one of the following occurs:

    • The associated service profiles are deleted.
    • The vNIC or vHBA to which the address is assigned is deleted.
    • The vNIC or vHBA is assigned to a different pool.
    Procedure
      Step 1   On the menu bar, click Network.
      Step 2   In the Network tab, expand Network > Pools > Root.

      If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

      Step 3   Expand the IP Pools node.
      Step 4   Right-click the pool you want to delete and select Delete.
      Note   

      If you plan to delete another pool, wait at least 5 seconds.

      Step 5   If Cisco UCS Central GUI displays a confirmation dialog box, click Yes.

      Configuring IQN Pools

      IQN Pools

      An IQN pool is a collection of iSCSI Qualified Names (IQNs) for use as initiator identifiers by iSCSI vNICs in a Cisco UCS domain. IQN pools created in Cisco UCS Central can be shared between Cisco UCS domains.

      IQN pool members are of the form prefix:suffix:number, where you can specify the prefix, suffix, and a block (range) of numbers.

      An IQN pool can contain more than one IQN block, with different number ranges and different suffixes, but sharing the same prefix.

      Creating an IQN Pool


      Note


      In most cases, the maximum IQN size (prefix + suffix + additional characters) is 223 characters. When using the Cisco UCS NIC M51KR-B adapter, you must limit the IQN size to 128 characters.


      Procedure
        Step 1   On the menu bar, click Storage.
        Step 2   In the Storage tab, expand Storage > Pools > Root.

        If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

        Step 3   Right-click IQN Pools and select Create IQN Pool.
        Step 4   In the General tab of the Create IQN Pool dialog box, fill in the following fields:
        Name Description

        Name field

        The name of the iSCSI Qualified Name (IQN) pool.

        This name can be between 1 and 32 alphanumeric characters. You cannot use spaces or any special characters other than - (hyphen), _ (underscore), : (colon), and . (period), and you cannot change this name after the object has been saved.

        Description field

        The user-defined description of the pool.

        Enter up to 256 characters. You can use any characters or spaces except ` (accent mark), \ (backslash), ^ (carat), " (double quote), = (equal sign), > (greater than), < (less than), and ' (single quote).

        Prefix field

        The prefix for any IQN blocks created for this pool.

        Unless limited by the adapter card, the prefix can contain from 1 to 150 characters. You can use any letter or number, as well as the special characters . (period), : (colon), and - (hyphen). For example, you could use iqn1.alpha.com.

        Step 5   In the IQN Blocks tab of the Create IQN Pool dialog box, click Create a Block of IQN Suffixes.
        Step 6   In the Create a Block of IQN dialog box, fill in the following fields:
        Name Description

        From field

        The first iSCSI Qualified Name (IQN) suffix in the block.

        Size field

        The number of suffixes in the block.

        Suffix field

        The suffix for this block of IQNs.

        Enter from 1 to 64 characters. You can use any letter or number, as well as the special characters . (period), : (colon), and - (hyphen). For example, you could use alphadc-1.

        Step 7   Click OK.
        Step 8   Click OK.
        Note   

        If you plan to create another pool, wait at least 5 seconds.


        What to Do Next

        Include the IQN suffix pool in a service profile and/or template.

        Deleting an IQN Pool

        If you delete a pool, Cisco UCS Central does not reallocate any addresses from that pool that have been assigned to vNICs or vHBAs in Cisco UCS Manager. All assigned addresses from a deleted pool remain with the vNIC or vHBA to which they are assigned until one of the following occurs:

        • The associated service profiles are deleted.
        • The vNIC or vHBA to which the address is assigned is deleted.
        • The vNIC or vHBA is assigned to a different pool.
        Procedure
          Step 1   On the menu bar, click Storage.
          Step 2   In the Storage tab, expand Storage > Pools > Root.

          If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

          Step 3   Expand the IQN Pools node.
          Step 4   Right-click the pool you want to delete and select Delete.
          Note   

          If you plan to delete another pool, wait at least 5 seconds.

          Step 5   If Cisco UCS Central GUI displays a confirmation dialog box, click Yes.

          Configuring UUID Suffix Pools

          UUID Suffix Pools

          A UUID suffix pool is a collection of SMBIOS UUIDs that are available to be assigned to servers. The first number of digits that constitute the prefix of the UUID are fixed. The remaining digits, the UUID suffix, are variable. A UUID suffix pool ensures that these variable values are unique for each server associated with a service profile which uses that particular pool to avoid conflicts.

          If you use UUID suffix pools in service profiles, you do not have to manually configure the UUID of the server associated with the service profile. Assigning global UUID suffix pools from Cisco UCS Central to service profiles in Cisco UCS Central or Cisco UCS Manager allows them to be shared across Cisco UCS domains.

          Creating a UUID Suffix Pool

          Procedure
            Step 1   On the menu bar, click Servers.
            Step 2   In the Servers tab, expand Servers > Pools > Root.

            If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

            Step 3   Right-click UUID Suffix Pools and select Create UUID Suffix Pool.
            Step 4   In the General tab of the Create UUID Suffix Pool dialog box, fill in the following fields:
            Name Description

            Name field

            The name of the UUID pool.

            This name can be between 1 and 32 alphanumeric characters. You cannot use spaces or any special characters other than - (hyphen), _ (underscore), : (colon), and . (period), and you cannot change this name after the object has been saved.

            Description field

            The user-defined description of the pool.

            Enter up to 256 characters. You can use any characters or spaces except ` (accent mark), \ (backslash), ^ (carat), " (double quote), = (equal sign), > (greater than), < (less than), and ' (single quote).

            Prefix field

            This can be one of the following:

            • DerivedCisco UCS Central creates the suffix.
            • other—You specify the suffix. If you select this option, Cisco UCS Central GUI displays a text field where you can enter the UUID suffix, in the format XXXXXXXX-XXXX-XXXX.
            Step 5   In the UUID Blocks tab of the Create UUID Suffix Pool dialog box, click Create a Block of UUID Suffixes.
            Step 6   In the Create a Block of UUID dialog box, fill in the following fields:
            Name Description

            From field

            The first UUID suffix in the block.

            Size field

            The number of UUID suffixes in the block.

            Step 7   Click OK.
            Step 8   Click OK.
            Note   

            If you plan to create another pool, wait at least 5 seconds.


            What to Do Next

            Include the UUID suffix pool in a service profile and/or template.

            Deleting a UUID Suffix Pool

            If you delete a pool, Cisco UCS Central does not reallocate any addresses from that pool that have been assigned to vNICs or vHBAs in Cisco UCS Manager. All assigned addresses from a deleted pool remain with the vNIC or vHBA to which they are assigned until one of the following occurs:

            • The associated service profiles are deleted.
            • The vNIC or vHBA to which the address is assigned is deleted.
            • The vNIC or vHBA is assigned to a different pool.
            Procedure
              Step 1   On the menu bar, click Servers.
              Step 2   In the Servers tab, expand Servers > Pools > Root.

              If you want to create or access a pool in a sub-organization, expand Sub-Organizations > Organization_Name

              Step 3   Expand the UUID Suffix Pools node.
              Step 4   Right-click the pool you want to delete and select Delete.
              Note   

              If you plan to delete another pool, wait at least 5 seconds.

              Step 5   If Cisco UCS Central GUI displays a confirmation dialog box, click Yes.