Fujitsu ETERNUS DX100 S5 - Figure 67 Details of the Deduplication;Compression Function

● Functional Details
Figure 67 Details of the Deduplication/Compression Function
Deduplication/
Compression Volume
(a virtual volume that
can be seen
from the server)
ETERNUS DX
Server
I/O request
Thin Provisioning Pool (TPP)
Non-Deduplication/
Compression
Volume (TPV)
Actual written data after
deduplication/compression
DATA_CNTNR (TPV)
Maps the Deduplication/Compression
Volume (or the virtual volume)
and the actual written data
D
C
F
E
B
A
B
A
D
C
F
E
B
A
B
A
D
C
F
E
B
A
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.
3. SAN Functions
Operations Optimization (Deduplication/Compression)
135 Design Guide