Overland Storage SnapServer Administrator's Manual page 250

SnapServer 7.0 Administrator's Guide
It is designed for Gigabit Ethernet that is backward compatible with the Category 5/5e and
Category 3 cable standards. Cat 6 features more stringent specifications for crosstalk and
system noise. The cable standard provides performance of up to 250 MHz and is suitable for
10BASE-T / 100BASE-TX and 1000BASE-T (Gigabit Ethernet).
Chaining
A native SnapServer technology in which all snapshots of a volume depend on successive
snapshots for part of their content.
Channel
A communications path between two computers or devices.
CHAP
Short for Challenge Handshake Authentication Protocol. A three-way handshake scheme
used to verify the identity of remote clients in a network.
If there are security concerns, it is possible to set up authentication of targets and
initiators, using the CHAP authentication protocol. With CHAP authentication, an initiator
can only connect to a target if it knows the target's password or secret. To set up CHAP, the
same secret must be known by both the initiator and target.
Checksum
The result of adding a group of data items that are used for checking the group. The data
items can be either numerals or other character strings treated as numerals during the
checksum calculation. The checksum value verifies that communication between two
devices is successful.
Chunk Size
This is the amount of data that is written on a single drive before the controller moves to
the next drive in the stripe.
CIFS
Short for Common Internet Filesystem. Also know as SMB. The default Windows protocol
for communication between computers. A specification for an Internet file access protocol
that complements HTTP and FTP and reduces access time.
daemon
A process that runs in the background.
default gateway
The router used when there is otherwise no known route to a given subnet.
degraded
A RAID state caused by the failure or removal of a disk drive in which data is consistent,
but there is no redundancy.
DHCP
Short for Dynamic Host Configuration Protocol. A communications protocol that lets
network administrators centrally manage and automate the assignment of IP addresses on
a computer network. Each system that connects to the Internet/intranet needs a unique IP
address. A SnapServer can be configured to perform as a DHCP server and assign IP
addresses with a single subnet.
10400317-001 10/2011
©2010-11 Overland Storage, Inc.
GL-4