Overland Storage REO 9000 - Manual (Page 163)

Glossary and Acronym List W 163
Glossary and Acronym List
Application server. A networked computer on which production
programs are running. The programs on an application server
typically handle application interaction between an end-user’s
browser-based programs and a company’s back-end database or
business applications. (While the application server runs the
programs and processes requests, the actual programs and data are
usually stored on a file server.)
Backup server. A networked computer that actually stores copies of
files from other computers or servers or that runs backup software
that automates the backup process of moving copies of files to separate
storage medium, such as tape.
D2D. Disk-to-disk
D2D2T. Disk-to-disk-to-tape
DHCP. Dynamic Host Configuration Protocol
File server. A networked computer on which programs and data files
are stored. (While the application server runs the programs and
processes requests, the actual programs and data are usually stored on
the file server.)
GbE. Gigabit Ethernet
HBA. Host bus adapter
Internet SCSI (iSCSI). A standard protocol for universal access to
shared storage devices over standard, Ethernet-based transmission
control protocol/Internet protocol (TCP/IP) networks. The connection-
oriented protocol transports SCSI commands, data, and status across
an IP network.
The iSCSI protocol enables block-level storage applications over TCP/
IP networks. It builds on two widely-used technologies—SCSI
commands for storage and IP protocols for networking.
„ iSCSI uses the SCSI command set, the core storage commands used
throughout all storage configurations.
„ iSCSI uses IP and Ethernet, the basis for most corporate,
metropolitan, and wide-area networks.