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82 Glossary
Controller
A chip that controls the transfer of data between the microprocessor and
memory or between the microprocessor and a peripheral device such as a
physical disk or the keyboard. In Storage Management, the hardware or logic
that interacts with storage devices to write and retrieve data and perform storage
management. RAID controllers perform RAID functions such as striping and
mirroring to provide data protection.
D
Disk
A non-volatile, randomly addressable, rewriteable mass storage device,
including rotating magnetic, optical and solid-state storage devices,
or non-volatile electronic storage elements.
DKMS
DKMS stands for Dynamic Kernel Module Support. It is designed to create a
framework where kernel dependent module source can reside so that it is very
easy to rebuild modules as you upgrade kernels. This will allow Linux vendors to
provide driver drops without having to wait for new kernel releases while also
taking out the guesswork for customers attempting to recompile modules for
new kernels.
Driver
A device driver, often called a driver for short, is a program that allows the
operating system or some other program to interface correctly with a peripheral
device such as a printer, a network PC card or the PERC H200 card.
DUD (Driver Update Diskette)
Acronym for driver update diskette. A DUD is an image of a diskette stored as a
regular file. To use it, you have to create a real diskette from this file. The steps used
to create the diskette depend on how the image is supplied.
PERC H200.book Page 82 Tuesday, July 13, 2010 4:15 PM