Figure 67 Details Of The Deduplication/Compression Function - Fujitsu ETERNUS DX S5 Series Design Manual
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Also See for ETERNUS DX S5 Series:
- Configuration manual (259 pages) ,
- Operation manual (basic (135 pages) ,
- Configuration manual (75 pages)
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3. SAN Functions
Operations Optimization (Deduplication/Compression)
●
Functional Details
Figure 67
A
B
C
D
I/O request
Deduplication/
Compression Volume
(a virtual volume that
can be seen
from the server)
Caution
Note the following when using the Advanced Copy functions for Deduplication/Compression Volumes.
• The CPU usage rate may increase depending on the EC/OPC priority setting. Be cautious of an I/O
performance reduction.
• The copy performance may be significantly reduced when compared to non-Deduplication/
Compression Volumes (TPVs).
• When using copies between ETERNUS DX storage systems, data without deduplication and
compression is sent to the copy destination. In addition, the bandwidth of the remote lines might
not be fully utilized.
Details of the Deduplication/Compression Function
Server
A
B
E
F
A
A
B
B
Maps the Deduplication/Compression
C
E
Volume (or the virtual volume)
D
F
and the actual written data
Non-Deduplication/
Thin Provisioning Pool (TPP)
DATA_CNTNR (TPV)
Actual written data after
Compression
deduplication/compression
Volume (TPV)
135
ETERNUS DX
A
B
C
E
D
F
Design Guide
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