Performance Tunables for Media Management - How To

Topics | How To | Related Topics

Set the Chunk Size for each Agent

Set the Chunk Size and Block Size for a Data Path

Set the Application Read Size

Enable Unbuffered I/O on a Mount Path

Enable Data Multiplexing

Set the Chunk Size for each Agent

To set the chunk size:

  1. From the Tools menu in the CommCell Console, click Control Panel.
  2. Double-click Media Management.
  3. Click the Chunk Size tab.
  4. Click the Agent for which you wish to modify the chunk size, and modify the chunk size in the Chunk Size column.
  5. Click OK in the Media Management Configuration dialog box to save the changes.

Set the Chunk Size and Block Size for a Data Path

Required Capability: See Capabilities and Permitted Actions

To set the chunk size and block size for a data path:

  1. From the CommCell Browser, right-click the storage policy copy for which you wish to add the data paths, then click Properties.
  2. Click the Data Paths tab.
  3. Select a data path and then click the Properties.
  4. You can view or modify the chunk and block size from the Data Path Properties dialog box.

Set the Application Read Size

To set the application read size:

  1. From the CommCell Browser, right-click the subclient for which you wish to configure the application read size and then click Properties.
  2. Select the Storage Device tab and the Storage Device (Data Transfer Option) tab within. Specify the desired read size in the Application Read Size field.
  3. Click OK to save your changes.

Enable Unbuffered I/O on a Mount Path

Related Topic

Required Capability: Capabilities and Permitted Actions

To enable unbuffered I/O on a mount path:

  1. From the CommCell Browser, right-click the mount path that you wish to enable unbuffered I/O, and then click Properties.
  2. From the General tab of Library Properties, click the Use unbuffered I/O option.
  3. Click OK to save the changes.

Enable Data Multiplexing

Before You Begin

Data Multiplexing cannot be enabled on a secondary copy, a copy of a disk library, or on a Disaster Recovery Backup storage policy.

Required Capability: Capabilities and Permitted Actions

To enable data multiplexing:

  1. From the CommCell Browser, right click the storage policy copy whose storage policy you want to enable data multiplexing, then click Properties.
  2. From the Media tab of the Copy Properties dialog box, select Enable Multiplexing.
  3. Select the number of subclients whose data will be multiplexed to the same media from the Multiplexing Factor list box.
  4. Click OK to save your changes.

To enable data multiplexing for Oracle jobs:

  1. From the CommCell Browser, click Job Management from the Control Panel window.
  2. From the Job Management (General) tab, select Enable Multiplexing for Oracle.
  3. Click OK to save your changes.