Set CPU I/O resource distribution

Unisphere supports the ability to set parameters to control mixed I/O workloads on an SRDF director.

About this task

The following explains how to set parameters to control mixed I/O workloads on an SRDF director. The values that are specified here override the default values that are defined in Set system attributes.

Steps

  1. Select the storage system.
  2. Select System > Hardware.
  3. Click the OR Directors or RDF Directors tab.
  4. Select a director port and click CPU I/O Setting.
  5. Type values for any number of the following parameters. The percentages must add up to 100.
    • Synchronous I/O Percent—Type the percentage of director resources to allocate for synchronous I/Os.
    • Asynchronous I/O Percent—Type the percentage of director resources to allocate for asynchronous I/Os.
    • Copy I/O Percent—Type the percentage of director resources to allocate for copy I/Os.
  6. To reset the parameters to their defaults, click Reset.
  7. Click OK.