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2. Basic Functions
Operations Optimization (Deduplication/Compression and Storage Virtualization)
●
Deduplication Function
This function removes duplicate data blocks and stores the data.
Figure 17
Data 1
A
A
●
Compression Function
This function compresses each data block and stores the data.
Figure 18
Data 1
A
A
Deduplication Overview
Business server 1
B
C
D
Data 1 is
written
B
C
D
Deduplication
Duplicate data blocks are removed
A
B
Target volume for deduplication
Compression Overview
Business server 1
B
C
D
Data 1 is
written
B
C
D
Compression:
Data blocks are compressed
A B C D A B E F
Target volume for compression
A
Data 2 is
written
Analysis
A
C
D
E
F
ETERNUS AF
A
Data 2 is
written
A
ETERNUS AF
43
Business server 2
B
E
F
Data 2
B
E
F
Business server 2
B
E
F
Data 2
B
E
F
Design Guide
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