Chapter 4 Volume Status
4.1 Volume (Basic Information)
Thin Provisioning Volume (TPV) is a virtual volume that is created in a Thin Provisioning Pool area.
When data is being written to a TPV from the server, the drives are allocated in specified size units.
A Flexible Tier Volume is a virtual volume that is created in an FTRP. This volume is a target volume for
layering. Data is automatically redistributed in small block units according to the access frequency. The
FTV is created by ETERNUS CLI or ETERNUS SF Storage Cruiser.
A Snap Data Volume (SDV) is an area that is used as the copy destination for a SnapOPC/SnapOPC+. For
a SnapOPC, SDVs are created for each copy destination. For a SnapOPC+, SDVs are created for each
generation of the copy destination.
A Snap Data Pool Volume (SDPV) is a volume that is used to configure SDP areas. 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 SDV.
Temporary is a migration source volume that failed to delete after RAID migration is complete, a work
volume that failed to delete after TPV balancing is complete, or a work volume that failed to delete
after FTRP balancing is complete.
The usage of the volume is displayed.
The volumes that are used for the SAN.
The Deduplication/Compression Volumes.
The volumes that are used for the NAS.
The volumes that are used for management information.
The system volumes described below. Refer to
(Basic)" (page 223)
System volumes for the NAS system
System volumes for the Virtual Volume function
Deduplication/Compression System Volumes
The volume capacity is displayed.
The capacity is displayed in units of "MB", "GB", or "TB". Even when volumes are created in units of "MB", if
the volume capacity exceeds 1023.99MB, the capacity is displayed in units of "GB". If the volume capacity
exceeds 1023.99GB, the capacity is displayed in units of "TB". The capacity is rounded off to two decimal
When the volume type is "SDV", the virtual capacity is displayed. The virtual capacity indicates the capacity
that is secured automatically when creating SDVs (24 (MB) + copy source volume capacity x 0.1%).
ETERNUS Web GUI User's Guide (Operation)
Copyright 2016 FUJITSU LIMITED
"Usage Details" (page 228)
"4.11 Volume Detail