88 Glossary
SMART
Acronym for Self-Monitoring Analysis and Reporting Technology.
Theself-monitoring analysis and reporting technology (SMART) feature
monitors the internal performance of all motors, heads, and drive electronics
todetect predictable drive failures. This feature helps monitor drive
performance and reliability, and protects the data on the drive. When problems
are detected on a drive, you can replace orrepair the drive without losing any
data. SMART-compliant disks have attributes for which data (values) can be
monitored to identify changes in values and determine whether the values are
within threshold limits. Many mechanical failures and some electrical failures
display some degradation in performance before failure.
Storport
The Storport driver has been designed to replace SCSIport and work with
Windows 2003 and beyond. In addition, it offers better performance for storage
controllers, providing higher I/O throughput rates, improved manageability, and
an upgraded miniport interface.
Stripe Element
A stripe element is the portion of a stripe that resides on a single physical disk.
Striping
Disk striping writes data across all physical disks in a virtual disk. Each stripe
consists of consecutive virtual disk data addresses that are mapped in fixed-size
units to each physical disk in the virtual disk using a sequential pattern.
Forexample, if the virtual disk includes five physical disks, the stripe writes data
to physical disks one through five without repeating any of the physical disks.
The amount of space consumed by a stripe is the same on each physical disk.
The portion of a stripe that resides on a physical disk is a stripe element.
Striping by itself does not provide data redundancy.
W
Windows
Microsoft Windows is a range of commercial operating environments for
computers. It provides a graphical user interface (GUI) to access programs and
data on the computer.
PERC H200.book Page 88 Tuesday, July 13, 2010 4:15 PM