Hitachi VSP G200 System Administration Manual page 404

tiered storage
total capacity
TPF
V
V-VOL
VDEV
view mode
virtual device (VDEV)
404
System Administrator Guide for VSP Gx00 models and VSP Fx00 models
A layered structure of performance levels, or tiers, that matches data
access requirements with the appropriate performance tiers. The tiers
are:
Tier 1: Static content. Tier 1 is fully supported computing expected to be
production quality.
Tier 2: Application logic. Tier 2 platforms are not supported by the
security officer and release engineering teams. Tier 2 systems are
targeted for Tier 1 support, but are still under development.
Tier 3: Database. Tier 3 platforms are architectures for which hardware is
not or will not be available or that are considered legacy systems unlikely
to see broad future use.
Tier 4 systems are not supported.
The aggregate amount of storage space in a data storage system.
Transaction Processing Facility
virtual volume
See virtual device.
The mode of operation of Device Manager - Storage Navigator that allows
viewing only of the storage system configuration. The two Device
Manager - Storage Navigator modes are view mode and modify mode.
A group of logical devices (LDEVs) in a RAID group. A VDEV typically
consists of some fixed volumes (FVs) and some free space. The number
of fixed volumes is determined by the RAID level and device emulation
type.
Glossary