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# Manage storage for Mainframe

The mainframe dashboard provides you with a single place to monitor and manage configured splits, CU images, and CKD volumes.

## About this task

One of the properties of a CKD volume is the physical name (also known as volume serial number (VOLSER)). VOLSER information is displayed if running a SMAS client/server to zOS as described in Appendix C - Configuring SMAS to work in z/OS of the Unisphere for PowerMax Installation Guide.

To access the mainframe dashboard:

## Steps

1. Select the storage system.
2. Select Hosts > Mainframe to open the mainframe dashboard.

   The mainframe dashboard is organized into the following panels:

   - CKD Compliance
   - CKD Storage Groups
   - Actions
   - Summary
   CKD Compliance panel
   Displays how well CKD storage groups are complying with their respective service level policies, if applicable. The storage groups on the mainframe dashboard are organized into the following categories:

   Total | All mainframe storage groups on the array.
   Stable | Number of storage groups performing within the service level targets. indicates that there are no storage groups performing within the service level targets.
   Marginal | Number of storage groups performing below service level targets. indicates that there are no storage groups performing below service level targets.
   Critical | Number of storage groups performing well below service level targets. indicates that there are no storage groups performing well below service level targets.
   No Service Level | No service level compliance information.

   CKD Storage Groups panel

   Displays the mainframe storage groups on the array. Double-click a storage group to see more details and information about its compliance and volumes.

   Actions panel
   Displays the following links:

   Provision Storage | Opens the Mainframe Provision wizard, which guides you through the process of provisioning storage for a mainframe. For more information, see Provision Storage wizard for mainframe.
   Create CKD Volumes | Opens the Create Volume dialog, from where you can create a CKD volume. For more information, see Create CKD volumes.

   Summary panel
   Displays the following mainframe summary information:

   Splits | The number of splits on the selected array. To view the list of splits, click Splits. For more information about viewing splits, see View splits.
   CU Images | The number of CU images on the selected array. To view the list of CU images, click CU Images. For more information about viewing CU images, see View CU images.
   CKD Volumes | The number of CKD volumes on the selected array. To view the list of CKD volumes, click CKD Volumes. For more information about viewing CKD volumes, see Manage volumes.