Create a Performance Policy with Deduplication Enabled

Performance policies are intended to be the optimal performance settings for the specific application. The performance policy helps optimize the performance for a volume based on the expected characteristics of the application using the volume. The performance policy defines the behavior of its associated volumes when space or capacity limits are exceeded.
You can associate a volume with an existing performance policy or create a new one.
  • Deduplication can be enabled only on All Flash, Secondary Flash, and select models of Adaptive Flash arrays.
  • If a particular group does not support deduplication, the checkbox to enable deduplication is not visible.
  • If a particular group consists only of All Flash or Secondary Flash arrays, the checkbox to enable caching is not visible.
  1. Choose ManagePerformance Policies.
    A list of all performance policies and the number of volumes associated with them is displayed.
  2. Click the + sign to create a new performance policy.
  3. Type a name that reflects the best use of the policy.
  4. Choose an Application Category from the drop-down list.
  5. (Optional) Choose a block size to match the application block size from the Storage Block Size drop-down list.
    Choices range from 4 KiB to 32 KiB. If in doubt, use the default of 4 KiB.
    NOTE: After the performance policy is created, the block size cannot be changed.
  6. (Optional) Uncheck the boxes to disable the compression or caching options.

    Leave compression and caching enabled for most applications.

    • Disable compression when the application using the volume precompresses data before storing it or when compression slows write times for an application that requires above-average sequential write throughput.
    • Disable caching for applications that use a sequential access to the volumes, such as an exchange log file. Exchange log files are typically stored on different volumes from the database files so caching is unnecessary.
  7. Check Enable deduplication on newly created volumes using this policy to enable deduplication.
  8. Choose a Limit Exceeded Behavior option to set the volume offline or non-writable if its capacity or space quota is exceeded.
    NOTE: Volumes with a no-cache policy cannot be pinned.
  9. Click Create.
    The performance policy appears in the selection list when you create or edit a volume.
IMPORTANT: When you replicate a volume using this policy, use an identical policy for the volume on the replication partner.