Initialize Meta Cache Distribution

Overview

This function restores the meta cache of selected NAS volumes to the initial location at an arbitrary time.

This function is used in a Unified Storage environment.

Caution

  • Redistributing the meta cache (or the process of restoring the initial location) may take a maximum of two minutes for each NAS volume (or NAS user volume and NAS backup volume).

  • If the meta cache is being redistributed at the scheduled start time of the snapshot acquisition, the start time of the snapshot acquisition may be delayed. Make sure to execute this function while snapshot acquisitions are not reserved.

  • If the following operations are executed for NAS volumes where a meta cache redistribution is being performed, the process may be delayed for a maximum of two minutes in each NAS volume until the redistribution is complete.

    • Deletion of the NAS volumes

    • Displaying the NAS volume status

    • Displaying the shared folder list

    • Creation of the shared folders

    • Deletion of the shared folders

    • Modification of the shared folder settings

  • The meta data cannot be redistributed for the following conditions.

    • Automatic meta cache distribution is executing

    • A snapshot is being acquired (and the snapshot acquisition is not complete within a certain period of time)

    • The storage system is in the high-load state (*1)

      *1  :  If the message indicates that the meta cache distribution cannot be initialized due to the storage system being overloaded, wait at least 30 minutes and then try again.
Note

  • The current and the initial meta cache locations can be checked. Refer to the [Meta Cache Distribution] function for details.

  • The meta cache distribution can be initialized automatically. Refer to the [Enable Automatic Meta Cache Distribution] function for details.

  • The meta cache distribution can be manually restored in the initial location even if "Automatic Meta Cache Distribution" is "Enable".

User Privileges

Availability of Executions in the Default Role

Default role Availability of executions
Monitor  
Admin
StorageAdmin
AccountAdmin  
SecurityAdmin  
Maintainer

Refer to User Roles and Policies for details on the policies and roles.

Operating Procedures

  1. Select the NAS volume (multiple selections can be made) to redistribute the meta cache and click [Initialize Distribution] in [Action].

    → A confirmation screen appears.

    Note

    • Redistributing the meta cache is available for NAS volumes of which "Current Location" and "Initial Location" do not match in the [Meta Cache Distribution] screen. If NAS volumes with the same "Current Location" and "Initial Location" are selected and [Initialize Distribution] is clicked, the process is completed normally without redistribution.

  2. Click the [OK] button.

    → Initialization of the meta cache distribution starts.

  3. Click the [Done] button to return to the [Meta Cache Distribution] screen.