The following table provides the function specifications for the Deduplication/Compression.
Table 56 Deduplication/Compression Function Specifications (ETERNUS DX200 S5, ETERNUS DX500 S5/
DX600 S5
)
Model ETERNUS DX200 S5 ETERNUS DX500 S5 ETERNUS DX600 S5
Number of TPPs available for Deduplication/
Compression settings
4 4 8
Maximum logical capacity that can be a
deduplication/compression target
Up to ten times the DATA_CNTNR Volume (*1)
Maximum logical
capacity of the
DATA_CNTNR Volume
(*2)
If the chunk size is 21MB 384TB 1,024TB 1,536TB
If the chunk size is
336MB
6,144TB 16,384TB 24,576TB
Volume type TPV
¡ (*3)
Standard / FTV / WSV /
SDV / SDPV / VVOL / ODX
´
System memory capacity (per CE) 128GB (recommended) 128GB or more 192GB or more
*1: If a Deduplication/Compression Volume is created or expanded, expand the DATA_CNTNR Volume according to the total capacity of
the Deduplication/Compression Volumes. If the efficiency of the Deduplication/Compression function cannot be estimated, the
recommended total capacity of Deduplication/Compression Volumes is a capacity smaller than the logical capacity of the
DATA_CNTNR Volume.
*2: When the Deduplication/Compression function is used, the total capacity of the Deduplication/Compression Volumes can be greater
than or equal to the capacity of the DATA_CNTNR Volume. If deduplication/compression is not effective for this case, a write
operation to a Deduplication/Compression Volume may fail due to a capacity shortage of the DATA_CNTNR Volume. The default
logical capacity of the DATA_CNTNR Volume is 32TB.
In addition, if the DATA_CNTNR Volume capacity runs out or is close to running out, an SNMP Trap is sent.
*3: NAS user volumes are not supported.
Table 57 Compression Function Specifications (ETERNUS DX900 S5)
Model ETERNUS DX900 S5
Number of TPPs available for Compression settings 8
Maximum logical capacity that can be a compression target Up to ten times the DATA_CNTNR Volume (*1)
Maximum logical
capacity of the
DATA_CNTNR Volume
(*2)
If the chunk size is 21MB 8PB
If the chunk size is 336MB 48PB
Volume type TPV
¡
Standard / FTV / WSV / SDV / SDPV / VVOL / ODX
´
System memory capacity (per CE) 768GB or more
*1: If a Compression Volume is created or expanded, expand the DATA_CNTNR Volume according to the total capacity of the
Compression Volumes. If the efficiency of the Compression function cannot be estimated, the recommended total capacity of
Compression Volumes is a capacity smaller than the logical capacity of the DATA_CNTNR Volume.
*2: The Compression function can create Compression Volumes whose capacity is equal to or larger than a DATA_CNTNR Volume. In
environments where compression is not effective, a write operation to the Compression Volume may fail due to a capacity shortage
of the DATA_CNTNR Volume. The default logical capacity of the DATA_CNTNR Volume is 32TB.
In addition, if the DATA_CNTNR Volume capacity runs out or is close to running out, an SNMP Trap is sent.
3. SAN Functions
Operations Optimization (Deduplication/Compression)
131 Design Guide
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