Figure 63 Deduplication/Compression Overview; Figure 64 Deduplication Overview - Fujitsu ETERNUS DX100 S4 Design Manual

3. SAN Functions
Operations Optimization (Deduplication/Compression)
●
Deduplication/Compression Function
This function removes duplicate data blocks, compresses the remaining data blocks, and then
stores the data.

Figure 63 Deduplication/Compression Overview

Data 1 A B
A B
●
Deduplication Function
This function removes duplicate data blocks and stores the data.

Figure 64 Deduplication Overview

Data 1
A B
A B
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Business server 1
C D
Data 1 is
written
C D Analysis
Deduplication
Duplicate data blocks are removed
Compression
Data blocks are
compressed
A B C D E F
Target volume for
deduplication/compression
Business server 1
C D
Data 1 is
written
C D Analysis
Deduplication
Duplicate data blocks are
removed
A B C D
Target volume for deduplication
Copyright 2023 Fujitsu Limited
A B E
Data 2 is
written
A B E
ETERNUS DX
A B E
Data 2 is
written
A B E
E F
ETERNUS DX
111
Business server 2
F Data 2
F
Business server 2
Data 2
F
F
P3AM-7642-32ENZ0