HP 3000 Enterprise Virtual Array - Manual (Page 222)

Glossary
222 Enterprise Virtual Array 3000 User Guide
Mbps
Megabits per second. A measure of bandwidth or data transfers occurring at a rate of
1,000,000 (10
6
) bits per second.
MBps
Megabytes per second. A measure of bandwidth or data transfers occurring at a rate of
1,000,000 (10
6
) bytes per second.
mean time between failures
See MTBF.
Mega
A notation denoting a multiplier of 1 million (1,000,000).
metadata
Information that a controller pair writes on the disk array. This information is used to control
and monitor the array and is not readable by the host.
micro meter
See µm.
mirrored caching
A process in which half of each controller’s write cache mirrors the companion controller’s
write cache. The total memory available for cached write data is reduced by half, but the level
of protection is greater.
mirroring
The act of creating an exact copy or image of data.
MTBF
Mean Time Between Failures. The average time from start of use to first failure in a large
population of identical systems, components, or devices.
multi-mode fiber
A fiber optic cable with a diameter large enough (50 microns or more) to allow multiple
streams of light to travel different paths from the transmitter to the receiver. This transmission
mode enables bidirectional transmissions.
Network Storage Controller
See NSC.