HP StoreEasy 3000 Gateway Storage - Manual (Page 139)

Glossary
The following glossary terms and definitions are provided as a reference for storage products.
ACL Access control list.
ADS Active Directory Service.
array A synonym of storage array, storage system, and virtual array. A group of disks
in one or more disk enclosures combined with controller software that presents
disk storage capacity as one or more virtual disks.
backups A read-only copy of data copied to media, such as hard drives or magnetic tape,
for data protection.
A full backup copies all the data selected to be backed up. An incremental
backup copies only data selected to be backed up that has changed since the
last full backup.
Backups provide data protection in the event of system or hard drive failure,
because the data is stored on media separate from the system hard drives.
CIFS Common Internet File System. The protocol used in Windows environments for
shared folders.
CLI Command-line interface. An interface comprised of various commands which
are used to control operating system responses.
cluster A group of logically integrated servers that enables high availability, increases
capacity, or distributes processing.
CSR Customer self repair.
data protection A method of protecting data from being corrupted or lost as a result of hard
drive failure. Methods used to provide data protection include RAID and backups.
DHCP Dynamic host configuration protocol.
DNS Domain name system.
fault tolerance The capacity to cope with internal hardware problems without interrupting the
system’s data availability, often by using backup systems brought online when
a failure is detected. Many systems provide fault tolerance by using RAID
architecture to give protection against loss of data when a single disk drive fails.
Using RAID 1, 3, 5, 6, 10, or 50 techniques, the RAID controller can reconstruct
data from a failed disk drive and write it to a spare or replacement disk drive.
FTP File Transfer Protocol.
HBA Host bus adapter.
iSCSI Internet small computer system interface. Like an ordinary SCSI interface, iSCSI
is standards-based and efficiently transmits block-level data between a host
X3000 G2 Network Storage System User Guide 139