No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

OceanStor 2600 V3 Storage System V300R005 SmartDedupe and SmartCompression Feature Guide for Block 05

"This document describes SmartDedupe and SmartCompression features for block data services,including their working principles, application scenarios, and configuration processes."
Rate and give feedback :
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Enabling SmartDedupe and SmartCompression

Enabling SmartDedupe and SmartCompression

If you have enabled neither SmartDedupe nor SmartCompression when you create a LUN, you cannot enable any of them after the LUN is created. You can only enable SmartDedupe and SmartCompression for a thin LUN only when you create it. After they have it has been enabled, the storage system deduplicates and compresses the data that has been newly written into the LUN.

Prerequisites

  • SmartDedupe supports only thin LUNs.
  • The storage system has a storage pool that provides storage space for LUNs. Create a storage pool if one does not already exist.

Context

You can choose to enable both SmartDedupe and SmartCompression at the same time or to enable just one of them.
  • If SmartDedupe is enabled, the storage system deduplicates the data that has been newly written into the LUN.
  • If SmartCompression is enabled, the storage system compresses the data that has been newly written into the LUN.
  • If both SmartDedupe and SmartCompression are enabled, the storage system first deduplicates the data that has been newly written into the LUN and then compresses it.

Procedure

  1. Go to the Create LUN dialog box.
    1. On the right navigation bar, click Provisioning.
    2. In the Block Storage Service area, click LUN.
    3. In the information pane, click the LUN tab.
    4. Click Create.

      The Create LUN dialog box is displayed.

  2. Create a thin LUN.
    1. Select Enable next to SmartThin and create a thin LUN.
    2. Set other parameters of the LUN as required.
  3. Enable SmartDedupe and SmartCompression for the thin LUN.
    1. Click Advanced.

      The Advanced dialog box is displayed.

    2. Click the Tuning tab.
    3. In the SmartDedupe&SmartCompression area, enable SmartDedupe or SmartCompression based on your service requirements.

      • If you want to enable SmartDedupe, select Enable SmartDedupe.
      • If you want to enable SmartCompression, select Enable SmartCompression.
      • If you want to enable both SmartDedupe and SmartCompression, select both Enable SmartDedupe and Enable SmartCompression.
      NOTE:

      Application Scenarios shows the scenarios where you are advised to enable SmartDedupe or SmartCompression.

    4. Click OK.

      The system returns to the Create LUN dialog box.

  4. Confirm that you have created a thin LUN with SmartDedupe&SmartCompression enabled.
    1. Click OK.

      The Warning dialog box is displayed.

    2. Read the information in the Warning dialog box and select I have read and understood the consequences associated with performing this operation.
    3. Click OK. SmartDedupe&SmartCompression has been enabled for the thin LUN.

      The Execution Result dialog box is displayed, indicating that the operation succeeded.

    4. Click Close.

Follow-up Procedure

  • If you have enabled either SmartDedupe or SmartCompression and want to enable the other in follow-up operations, you can modify the settings in the LUN Properties dialog box.
  • Once enabled, to configure policies related to SmartDedupe and SmartCompression, run change lun on the CLI, and use parameters such as bytecomparison_enabled.
    NOTE:

    For details about how to use the change lun command, see OceanStor 2200 V3&2600 V3 Storage System V300R005 Command Reference .

  • After SmartDedupe&SmartCompression is enabled for a LUN, you cannot run the change lun command to set Write Policy of the LUN to Write Through.
  • After SmartDedupe&SmartCompression is enabled for a LUN, you can view redundant data deduplication and data compression information when checking LUN properties. For details, see Viewing Information About SmartDedupe and SmartCompression.
Translation
Download
Updated: 2018-06-04

Document ID: EDOC1000106188

Views: 5950

Downloads: 54

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next