● Deduplication Function
This function removes duplicate data blocks and stores the data.
Figure 20 Deduplication Overview
A B C D E F
Business server 2
Target volume for deduplication
Analysis
A B C D
Data 1
Business server 1
Data 2
A B E F
Data 1 is
written
Data 2 is
written
Deduplication
Duplicate data blocks are removed
ETERNUS AF
A B C D A B E F
● Compression Function
This function compresses each data block and stores the data.
Figure 21 Compression Overview
A B C D A B E F
Business server 2
Target volume for compression
A B C D
Data 1
Business server 1
Data 2
A B E F
Data 1 is
written
Data 2 is
written
Compression:
Data blocks are compressed
ETERNUS AF
A B E FA B C D
1. Function
Operations Optimization (Deduplication/Compression and Storage Virtualization)
39
FUJITSU Storage ETERNUS AF250 S2, ETERNUS AF250 All-Flash Arrays
Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
P3AG-1822-09ENZ0