HP Surestore NAS - Manual (Page 83)

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Glossary
Glossary
A
Access Control List (ACL)
A list associated with a file that contains information about which users or groups have
permission to access or modify the file.
Active spare
A previously installed physical drive used as a backup in case an assigned drive fails. The
active spare automatically takes over the duties of the failed drive.
Agent
A program that performs a background task for a user and reports to the user when the task is
done or some expected event has taken place. The HP NAS VA uses backup agents to back
up data remotely.
Aggregation
The combining of multiple similar or related operations into a single one.
Authentication
The process of matching credentials provided by the user against an equivalent entry on the
SAM database. A user's name and password are compared against an authorized list and if
the system detects a match, access is granted to the extent specified in the permission list for
that user.
AutoRAID
AutoRAID implements RAID technology automatically without requiring you to know all the
complexities of determining and setting up different RAID modes. AutoRAID is an advanced
array storage technology that provides the best combination of cost, performance, and
availability.
B
Bond channel
A failover mechanism that automatically switches a specific NIC port to a standby network
upon the failure or abnormal termination of the currently active system.
Broadcast address
The address that can be used to send messages to all machines on the subnet. Applying the
subnet mask to the IP address provides the subnet.