Dell Compellent Series 30 - Manual (Page 66)

60 Storage Center System Setup Guide
Glossary
Storage Profile
A collection of rules that identify RAID level and drive types (tiers) on which data is stored.
All volumes are attached to a Storage Profile.
Storage Type
Pool of storage from which volumes are created. Storage Center is most efficient when all
disks are combined into one pool of storage. Data Progression can then store data with
maximum efficiency. In some circumstances, you can create additional storage types
based on redundancy and data page size.
T
TCP/IP
Terminal Control Protocol/Internet Protocol
Thin Provisioning
Volume sizes can be defined that are greater than the actual physical storage. Storage
space is only used when data is written.
Transport
The Storage Center supports Fibre Channel, iSCSI, and SAS transport types.
U
Unassigned Disk
Disk drives that have not been assigned to a managed disk folder and therefore cannot be
used by the system.
Unmanaged Disk
Same as unassigned disk.
UPS
Uninterruptible Power Supply. A power supply that includes a battery that provides power
to the Storage Center in the event of a power outage. Power from the battery should last
long enough to save data in RAM and shut Storage Center down gracefully.
V
Virtual Ports
In contrast to physical ports which require a pair of physical ports to be designated as
Primary/Reserved to provide redundancy, virtual ports allow all front-end ports to be used
as Primary thereby eliminating the need for Reserved ports.
Virtualization
Ability to span volumes across any number of physical disks. A logical representation of
physical storage assets. Virtualization is implemented in the controller software.