Table 8 Volumes That Can Be Created - Fujitsu ETERNUS DX500 S4/DX600 S4 Design Manual

2. Basic Functions
RAID Functions
The types of volumes that are listed in the table below can be created in the ETERNUS DX.

Table 8 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 Volume
Wide Striping Volume (WSV)
ODX Buffer volume
*1: When multiple volumes are concatenated using the LUN Concatenation function, the maximum capacity is
also 128TB.
*2: The capacity differs depending on the copy source volume capacity.
After a volume is created, formatting automatically starts. A server can access the volume while it is being for-
matted. Wait for the format to complete if high performance access is required for the volume.
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
Usage
A standard volume is used for normal usage, such as file sys-
tems and databases. The server recognizes it as a single logi-
cal unit.
"Standard" is displayed as the type for this volume in ETERNUS
Web GUI/ETERNUS CLI and "Open" is displayed 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. 128TB
This volume is a target volume for layering. Data is automati-
cally redistributed in small block units according to the access
frequency. An FTV belongs to a Flexible Tier Pool.
A VVOL is a VMware vSphere dedicated capacity virtualization
volume. Operations can be simplified by associating VVOLs
with virtual disks.
Its volume type is FTV.
This volume is a virtual volume that is recognized by the serv-
er when the Deduplication/Compression function is used. It
can be created by enabling the Deduplication/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.
This volume is created by concatenating distributed areas in
from 2 to 64 RAID groups. Processing speed is fast because
data access is distributed.
An ODX Buffer volume is a dedicated volume that is required
to use the Offloaded Data Transfer (ODX) function of Windows
Server 2012 or later. It is used to save the source data when
data is updated while a copy is being processed.
It can be created one per ETERNUS DX.
Its volume type is Standard, TPV, or FTV.
27
Copyright 2019 FUJITSU LIMITED
Maximum capacity
128TB (*1)
24 [MB] + copy source
volume capacity ´ 0.1 [%]
(*2)
2TB
128TB
128TB
128TB
128TB
1TB
P3AM-7722-25ENZ0