Export Cache Parameters

Overview

This function exports the setting information of the cache parameters for all the volumes at the same time.

Note
  • The following cache parameters can be exported.

    • Cache Page Capacity

    • Prefetch Limit (PL)

    • Force Prefetch Mode (FP)

    • Multi Writeback Count (MWC)

    • Prefetch Sequential Detect Count (PSDC)

    • Sequential Dirty Detect Count (SDDC)

    • Sequential Slope (SS)

    • Sequential Dirty Slope (SDS)

    • Sequential Parallel Multi I/O Count (SPMC)

    • Extreme Cache

    • Extreme Cache Pool

  • Cache parameters can be exported from "Standard", "WSV", "TPV", "FTV", "SDV", and "SDPV" type volumes. Note that "Cache Page Capacity" cannot be exported from "WSV", "TPV", and "FTV" type volumes. Note that "Extreme Cache" and "Extreme Cache Pool" cannot be downloaded from "SDV" and "SDPV" type volumes.

  • MWC for each TPP can also be exported.

  • Cache parameters for Deduplication/Compression Volumes cannot be obtained.

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

Cache parameters for all the volumes are exported.

Download Setting

Item Description

Target

The cache parameter that is to be exported is displayed.

Cache Control Parameter List Information

Item Description

Model Name

The model name of the storage system is displayed.

Serial No.

The serial number of the storage system is displayed.
Item Description

Volume

The volume number is displayed.

When the volume is concatenated by LUN Concatenation or when the volume type is "WSV", "(concatenation order / total number of concatenated volumes)" is displayed after the volume number.

Name

The volume name is displayed.

Type

The volume type is displayed.

Standard

WSV

TPV

FTV

SDV

SDPV

Cache Page Capacity

The cache page capacity of the volume is displayed.

A "-" (hyphen) is displayed when the volume type is "WSV", "TPV", or "FTV".

Note that a "-" (hyphen) is displayed for a "Standard" type volume that is concatenated by the LUN Concatenation function.

PL

The Prefetch Limit (PL) of the volume is displayed.

FP

When the Force Prefetch Mode of the volume is enabled, "ON" is displayed. When the mode is disabled, "OFF" is displayed.

MWC

The Multi Writeback Count of the volume is displayed.

A "-" (hyphen) is displayed when the volume type is "TPV" or "FTV".

Note that a "-" (hyphen) is displayed for a "Standard" type volume that is concatenated by the LUN Concatenation function.

PSDC

The Prefetch Sequential Detect Count of the volume is displayed.

SDDC

The Sequential Dirty Detect Count of the volume is displayed.

SS

The Sequential Slope of the volume is displayed.

SDS

The Sequential Dirty Slope of the volume is displayed.

SPMC

The Sequential Parallel Multi I/O Count of the volume is displayed.

Extreme Cache

When Extreme Cache for the volume is enabled, "ON" is displayed. If disabled, "OFF" is displayed.

A "-" (hyphen) is displayed for volumes that do not support the Extreme Cache.

This item is displayed when Extreme Cache is enabled for the storage system.

Extreme Cache Pool

When Extreme Cache Pool for the volume is enabled, "ON" is displayed. If disabled, "OFF" is displayed.

A "-" (hyphen) is displayed for volumes that do not support the Extreme Cache Pool.

This item is displayed when Extreme Cache Pool is enabled for the storage system.

When TPPs are registered, the MWC for each TPP is exported.

Item Description

TPP No.

The TPP number is displayed.

Name

The TPP name is displayed.

MWC

The Multi Writeback Count of the volume is displayed.

Operating Procedures

  1. Click [Export Cache Parameters] in [Action].

  2. Click the [Export] button.

    → Exporting of the cache parameters is executed.

        After the cache parameters are exported, a dialog box to download the file appears.

  3. Click the [Download] button.

    → A dialog box to download the file appears.

  4. Save the setting information file of the cache parameter.

    The default file name is "CacheParam_serial number for the ETERNUS DX_YYYY-MM-DD_hh-mm-ss.txt".

    (YYYY-MM-DD_hh-mm-ss: the date and time when the download screen (Step 3) is displayed.)

    → Downloading the setting information file starts.

  5. Click the [Done] button to return to the screen when starting this function in Step 1.