Table 8 Number Of Volumes That Can Be Created; Table 9 Volumes That Can Be Created - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
RAID Functions
The number of volumes that can be created in the ETERNUS DX is shown below. Volumes can be
created until the combined total for each volume type reaches the maximum number of volumes.

Table 8 Number of Volumes That Can Be Created

Model
ETERNUS DX100 S4/DX100 S3
ETERNUS DX200 S4/DX200 S3
*1 : The values if the controller firmware version is earlier than V10L60 or if the "Expand Volume
Mode" is disabled.
*2: The values if the controller firmware version is V10L60 or later and if the "Expand Volume
Mode" is enabled.
A volume can be expanded or moved if required. Multiple volumes can be concatenated and trea-
ted as a single volume. For availability of expansion, displacement, and concatenation for each vol-
ume, refer to "Target Volumes of Each Function" (page
The types of volumes that are listed in the table below can be created in the ETERNUS DX.

Table 9 Volumes That Can Be Created

Type
Standard (Open)
Snap Data Volume (SDV)
Snap Data Pool Volume (SDPV)
Thin Provisioning Volume (TPV)
Flexible Tier Volume (FTV)
Virtual Volumes (VVOLs)
Deduplication/Compression Vol-
ume
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Number of volumes (max.)
2,048 (*1)
4,096 (*2)
4,096 (*1)
8,192 (*2)
Usage
A standard volume is used for normal usage, such as
file systems and databases. The server recognizes it as
a single logical unit.
"Standard" is displayed as the type for this volume in
ETERNUS Web GUI/ETERNUS CLI and "Open" is dis-
played in ETERNUS SF software.
This area is used as the copy destination for SnapOPC/
SnapOPC+. There is a SDV for each copy destination.
This volume is used to configure the Snap Data Pool
(SDP) area. The SDP capacity equals the total capacity
of the SDPVs. A volume is supplied from a SDP when
the amount of updates exceeds the capacity of the
copy destination SDV.
This virtual volume is created in a Thin Provisioning
Pool area. TPVs are used as the copy destination for
SnapOPC+.
This volume is a target volume for layering. Data is au-
tomatically redistributed in small block units according
to the access frequency. FTVs are used as the copy
destination for SnapOPC+. An FTV belongs to a Flexi-
ble Tier Pool.
A VVOL is a VMware vSphere dedicated capacity virtu-
alization volume. Operations can be simplified by asso-
ciating VVOLs with virtual disks.
Its volume type is FTV.
This volume is a virtual volume that is recognized by
the server when the Deduplication/Compression func-
tion is used. It can be created by enabling the Dedupli-
cation/Compression setting for a volume that is to be
created. The data is seen by the server as being non-
deduplicated and uncompressed.
The volume type is TPV.
27
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201).
Maximum capacity
128TB (*1)
24 [MB] + copy source
volume capacity ´ 0.1
[%] (*2)
2TB
128TB
128TB
128TB
128TB
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