Overland Storage SnapServer Administrator's Manual page 248

SnapServer 7.0 Administrator's Guide
AllLocalUsers Group
The default group for all local users on SnapServers. Local users are set up by the
SnapServer administrator. Network users or Windows domain users are not part of the
AllLocalUsers group.
AllUsers Group
A collection of all users. The SnapServer automatically maintains the AllUsers group.
Array
A group of disk drives that are combined together to create a single large storage area. Up
to 64 arrays are supported, each containing up to 16 drives per array. There is no capacity
limit for the arrays. In a server context, an array refers to the grouping of hard drives into
a RAID set.
ATA
Short for Advanced Technology Attachment. A standard interface for connecting storage
devices to a PC.
Auto Balance
A feature that automatically balances preferred paths evenly among all available host ports
and controller ports. Auto balancing spreads I/O load by utilizing as many host ports and
controller ports as possible.
Authentication
The validation of a user's identity by requiring the user to provide a registered login name
and corresponding password.
Autonegotiation
An Ethernet feature that automatically negotiates the fastest Ethernet speed and duplex
setting between a port and a hub or switch. This is the default setting and is recommended.
Autosensing
An Ethernet feature that automatically senses the current Ethernet speed setting.
Back-end
Front-end and back-end are terms used to characterize program interfaces and services
relative to the initial user, human or program, of these interfaces and services. A
"front-end" application is one that application users interact with directly. A "back-end"
application or program serves indirectly in support of the front-end services, usually by
being closer to the required resource or having the capability to communicate with the
required resource. The back-end application may interact directly with the front-end or,
perhaps more typically, is a program called from an intermediate program that mediates
front-end and back-end activities.
Back-off Percent
In order to allow drives from a different family or manufacturer to be used as a replacement
for a drive in an array, it is recommended that a small percentage of the drive's capacity be
reserved when creating the array. This is user selectable, from 0 to 10 percent. This is
sometimes known as Reserved Capacity.
10400317-001 10/2011
©2010-11 Overland Storage, Inc.
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