American Megatrends MegaRAID Express 500 - Manual (Page 113)

Glossary 99
Glossary, Continued
SCSI ID A SCSI physical drive can be in one of these states:
•
Online - Powered-on and operational.
•
Hot Spare - Powered-on stand-by disk drive, ready for use if an online
disk fails.
•
Rebuild - A disk drive to which one or more logical drives is restoring
data.
•
Not Responding - The disk drive is not present, is not powered-on, or
has failed.
Service Provider The Service Provider (SP) is a program that resides in the desktop system or
server and is responsible for all DMI activities. This layer collects management
information from products (whether system hardware, peripherals or software)
stores that information in the DMI database and passes it to management
applications as requested.
SMARTer Self-Monitoring, Analysis, and Reporting Technology with Error Recovery. An
industry standard protocol for reporting server system information. Self-
Monitoring, Analysis and Reporting Technology for disk drives is a specification
designed to offer an early warning for some disk drive failures. These failures
are predicted based upon actual performance degradation of drive components
that are then reported back to a user through a graphical interface.
SNMP Simple Network Management Protocol, the most widely used protocol for
communication management information between the managed elements of a
network and a network manager. SNMP focuses primarily on the network
backbone. The Internet standard protocol that manages nodes on an Internet
Protocol (IP) network.
Spanning Array spanning by a logical drive combines storage space in two arrays of disk
drives into a single, contiguous storage space in a logical drive. MegaRAID
logical drives can span consecutively numbered arrays that each consist of the
same number of disk drives. Array spanning promotes RAID levels 1, 3, and 5 to
RAID levels 10, 30, and 50, respectively. See also Disk Spanning and Spanning.
Cont’d