Release Extreme Cache

Overview

This function releases the Extreme Cache for each CE.

After the Extreme Cache is released, PFM cannot be used as an Extreme Cache.

Caution

  • This function is supported in the ETERNUS DX500 S5/DX600 S5/DX900 S5 and the ETERNUS DX8900 S4.

Note

  • If the use of Extreme Cache is to be stopped in a CE, use this function to release the Extreme Cache. PFMs cannot be removed if Extreme Cache is not released.

  • Extreme Cache can be released even if a failed PFM is installed in the CE.

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.

Display Contents

Extreme Cache Capacity Information

Item Description

Checkbox to select Owners of the Extreme Cache to be released

Select the Owner (CE#x) of the Extreme Cache that is to be released.

For CEs without the Extreme Cache capacity setting, the checkbox is disabled.

This item is displayed for the ETERNUS DX900 S5 or the ETERNUS DX8900 S4.

Owner

All the CEs in the storage system are displayed.

This item is displayed for the ETERNUS DX900 S5 or the ETERNUS DX8900 S4.

Current

The total capacity (TB) that can be used as Extreme Cache in the PFM installed in the target CE is displayed.

After PFMs are installed, if the Extreme Cache capacity is not specified, "0.0 TB" is displayed.

After

The total capacity (TB) in the target CE after Extreme Cache is released is displayed.

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4, "0.0 TB" is displayed for the following CEs.

  • CEs where Extreme Cache is to be released

    (CEs of which "Checkbox to select Owners of the Extreme Cache to be released" is selected.)

  • CEs where PFMs without the Extreme Cache capacity setting are installed.

Operating Procedures

For the ETERNUS DX900 S5 or the ETERNUS DX8900 S4

  1. Click [Release Extreme Cache] in [Action].

    Caution

    • If the capacity that can be used as Extreme Cache is "0.0 TB" for all CEs where PFMs are installed, [Release Extreme Cache] cannot be clicked.

  2. Select the Owner (CE#x) that is to be released (multiple selections can be made) and click the [Release] button.

    → A confirmation screen appears.

  3. Click the [OK] button.

    → Releasing Extreme Cache starts.

  4. Click the [Done] button to return to the [Extreme Cache] screen.

For the Other Models

  1. Click [Release Extreme Cache] in [Action].

    → A confirmation screen appears.

    Caution

    • [Release Extreme Cache] cannot be clicked if the Extreme Cache capacity is not set.

  2. Click the [OK] button.

    → Releasing Extreme Cache starts.

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