●
Deduplication Function
This function removes duplicate data blocks and stores the data.
Figure 17
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 18
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
F
A
B
C
D
2. Basic Functions
Operations Optimization (Deduplication/Compression and Storage Virtualization)
43
Design Guide
Содержание ETERNUS AF S3 Series
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