Create an SSD compatibility

You can create SSD compatibilities both for capacity and count to enable new nodes to be provisioned to node pools with different SSD specifications. SSD compatibilities can be created for the following node types: S200, S210, X200, X210, X400, X410, NL400, and NL410.

About this task

For example, if you have a node pool made up of three S200 nodes with 100GB SSDs, and you install an S200 node with an equal number of 200GB SSDs, the new S200 node is not autoprovisioned to the S200 node pool until you create an SSD compatibility. If the nodes of the S200 node pool each have six SSDs, and the new S200 node has eight SSDs, you must also create an SSD count compatibility to enable the new S200 node to be provisioned to the S200 node pool.

Similarly, if you have different generation nodes that are class-compatible, such as S200 and S210 nodes, you can create SSD compatibilities between those node types.

Procedure

  1. Select File System > Storage Pools > SmartPools.
    The SmartPools tab displays two lists: Tiers & Node Pools and Compatibilities.
  2. Click Create a compatibility.
    The Create a Compatibility dialog box displays a drop-down list of compatibility types.
  3. From the Compatibility Type list, select SSD.
    An additional drop-down list, Node Class, is added.
  4. In the Node Class list, accept the current selection, or make a new selection, as appropriate.
  5. If appropriate, also select the SSD Count Compatibility check box.
  6. Click Create Compatibility.
    A Confirm Create Compatibility dialog box appears, with one or more check boxes that you must select before proceeding. The check boxes describe the results of the operation.
  7. Select all check boxes, and then click Confirm.

Results

The SSD compatibility is created and is also described in the Compatibilities list. For example, a message such as "S200 and S210 nodes are SSD compatible" is displayed. The result of the SSD compatibility appears in the Tiers & Node Pools list, as well. If L3 cache is turned off on any node pools that would be affected by the SSD compatibility, the SSD compatibility is not created, and an error message is generated. To correct the situation, turn on L3 cache for those node pools.