Table 41 Volumes That Are To Be Created Depending On The Selection Of "Deduplication" And "Com- Pression; Table 42 Deduplication/Compression Setting For Tpps Where The Target Volumes Can Be Created - Fujitsu ETERNUS DX100 S4 Design Manual

3. SAN Functions
Operations Optimization (Deduplication/Compression)
Deduplication is performed for Deduplication/Compression Volumes within the same TPP. Dedu-
plication is not performed for data in different TPPs. In some cases, deduplication might not be
performed even within the same TPP.
To enable the Deduplication/Compression function for existing volumes, use the RAID Migration
function.
Volumes that are to be created and the Deduplication/Compression setting for TPPs where the tar-
get volumes can be created vary depending on the selection of "Deduplication" and "Compres-
sion".
Volumes that are to be created
•
Table 41 Volumes That Are to Be Created depending on the Selection of "Deduplication" and "Com-
pression"
Condition
Deduplication
Enable
Enable
Disable
Disable
Deduplication/Compression setting for TPPs where the volumes can be created
•

Table 42 Deduplication/Compression Setting for TPPs Where the Target Volumes Can Be Created

Condition
Deduplication
Enable
Enable
Disable
Disable
¡: Volumes can be created
´: Volumes cannot be created
TPPs with the Deduplication/Compression function enabled have one of the following attributes:
deduplication/compression, deduplication only, or compression only. The Deduplication/
Compression Volume conforms to the attribute of the TPP where the volume is created. TPVs
where the Deduplication/Compression function is enabled and disabled can exist together within
each TPP.
●
Deduplication/Compression System Volumes
The following internal volumes are created for each TPP where the Deduplication/Compression
function is enabled.
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Compression
Enable
Disable
Enable
Disable
Deduplication/Compression setting for the destination TPP
Only Deduplica-
Compression
tion is enabled
´
Enable
Disable ¡
´
Enable
Disable
¡
115
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Volumes that are to be created
Deduplication/Compression Volumes where both De-
duplication and Compression are enabled
Deduplication/Compression Volumes where only Dedu-
plication is enabled
Deduplication/Compression Volumes where only Com-
pression is enabled
TPVs for SAN where both Deduplication and Compres-
sion are disabled
Both Deduplica-
Only Compres- tion and Com-
sion is enabled pression are ena-
bled
´
¡
´ ´
´
¡
¡ ¡
Both Deduplica-
tion and Com-
pression are dis-
abled
´
´
´
¡
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