Copilot Services Within Dell Compellent Storage Center, the combination of centralized support, product
education and sales resources that proactively monitor the system and recommend
corrective actions to improve performance and availability of the system.
Copy-Mirror-Migrate A Dell Compellent Storage Center feature allowing volumes to be migrated between different
disk types and RAID levels.
credential store In the context of EKM, a repository that holds credential information across sessions.
Credential information is security data such as user names, passwords, and certificates.
Cryptographic Object A method of securing data.
Data Collector A Dell Compellent Enterprise Manager component that runs in the background on a server,
collecting information on all Dell Compellent Storage Center systems connected to the
server.
Data Instant Replay A Dell Compellent Storage Center feature that captures space-efficient point-in-time copies
(PITC) of a volume on the local SAN at defined intervals, providing the ability to roll back a
volume to a previous point in time. See Replay, snapshot.
Data Progression A Dell Compellent Storage Center feature that automatically migrates data pages to higher or
lower performance devices, based on the level of I/O activity (demand). See tiered storage.
DDR See Double-data Rate.
delegated space In the context of the Dell EqualLogic Group Manager, a space on a group set aside to store
received replicas for a partner.
Dell Encryption Key
Manager (EKM)
Dell Encryption Key Manager (EKM) secures the data stored on LTO tape cartridges by
managing encryption keys for Dell tape automation solutions.
Dell Remote Access
Controller (DRAC)
An interface card that provides out-of-band management facilities. The controller has its
own processor, memory, network connection, and access to the system bus, and allows
system administrators to control systems remotely across a network.
device driver A program that allows the operating system or some other program to interface correctly
with a peripheral.
DHCP See Dynamic Host Configuration Protocol.
Digital Versatile Disk Digital versatile disc or digital video disc (DVD).
disk folder In Dell Compellent Storage Center, a collection of physical storage media devices (disks,
SSDs) that can be viewed and managed by a user. Disk folders determine the storage
pool(s) from which volume storage space is allocated. Although disk folders can be
associated with multiple storage pools, Dell Compellent Storage Center performance is
maximized by assigning all disks to the same folder and storage pool.
Disk Position In Dell Compellent Storage Center, the slot position of a disk drive within its enclosure, in
row-column notation. For example, disk position 01-02 refers to the slot in the first row from
the top and second column from the left.
DNS See Domain Name System.
Domain Name System
(DNS)
A method of translating Internet domain names, such as www.example.com, into IP
addresses, such as 208.77.188.166.
dormant Persona In the AIM environment, a persona that is not currently running (or waiting to run) on a host.
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