Wide Striping; Figure 5.15 Wide Striping - Fujitsu ETERNUS DX80 S2 Overview

Chapter 5 Basic Functions
5.3 Optimization of Volume Configurations
5.3.4

Wide Striping

Wide Striping is a function that concatenates multiple RAID groups by striping and uses many drives
simultaneously to improve performance. This function is effective when high Random Write performance is
required.
I/O accesses from the server are distributed to multiple drives by increasing the number of drives that
configure a LUN, which improves the processing performance.

Figure 5.15 Wide Striping

RAID group#0
Wide Striping Volume (WSV)
RAID group#2
The ETERNUS DX Disk storage system firmware version must be V10L30 or later to use the Wide Striping
function.
The firmware version can be checked via ETERNUS Web GUI or ETERNUS CLI. When upgrading firmware is
required, contact your sales representative.
RAID group#1
RAID group#3
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ETERNUS DX80 S2/DX90 S2 Disk storage system Overview
Copyright 2013 FUJITSU LIMITED
The WSV is divided into same capacity
units and allocated to each RAID group.
The concatenated area is seen as a
single LUN by the server.
P3AM-4812-11ENZ0