Extreme Cache - Fujitsu Eternus DX100 S3 User Manual

Fujitsu eternus cli user's guide

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Chapter 3 Configuration Settings and Display

3.2 Volume Management

Extreme Cache

This section explains the commands that are related to the Extreme Cache function. The Extreme Cache

function improves read performance by using a PFM (PCIe Flash Module) as a L2 cache.

The Extreme Cache function is not available:

for the ETERNUS DX100 S3/DX200 S3

for the ETERNUS DX200F

for an ETERNUS DX without an installed PFM

The functions to control Extreme Cache are as follows:

Enabling or disabling the Extreme Cache function for the ETERNUS DX and controlling the PFM memory

capacity that is used as cache (the "set extreme-cache" command)

Referencing the setting information of the Extreme Cache function (the "show extreme-cache" command)

Enabling or disabling the Extreme Cache function for a volume when it is created (the "create volume [-

exc]" command)

Enabling or disabling the Extreme Cache function for each of the existing volumes (the "set volume-exc"

Referencing whether the Extreme Cache function is enabled for each volume (the "show volumes -mode

detail" command)

The Extreme Cache function for Flexible Tier Volumes (FTVs) is controlled by a software application.

ETERNUS CLI User's Guide

P2X0-1210-05ENZ0

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