HP 166207-B21 Smart Array 5300 Controller User Guide - Page 147

Glossary, ACU Array Configuration Utility, ADU Array Diagnostic Utility

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Glossary ACU (Array Configuration Utility) A configuration utility useful both for novices and for more experienced RAID users. Obtained either from the SmartStart CD or as a download from the Compaq website. ADU (Array Diagnostic Utility) A diagnostic tool that collects comprehensive information about the array controllers in a system and lists any problems detected. ARM (Auto-Reliability Monitoring) Also known as surface analysis. A fault management feature whereby hard drives are scanned for bad sectors, and data in the faulty sectors is remapped onto good sectors. Parity data consistency is also checked for drives in RAID 5 or RAID ADG configurations. Operates as a background process. array A set of physical drives configured into one or more logical drives. Arrayed drives have significant performance and data protection advantages over non-arrayed drives. array accelerator A component of some Smart Array controllers that dramatically improves disk read and write performance by providing a buffer. Data integrity is protected by a backup battery and ECC memory. array capacity expansion See capacity expansion. Compaq Smart Array 5300 Controller User Guide Glossary-1

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Compaq Smart Array 5300 Controller User Guide
Glossary-1
Glossary
ACU (Array Configuration Utility)
A configuration utility useful both for novices and for more experienced RAID users.
Obtained either from the SmartStart CD or as a download from the Compaq website.
ADU (Array Diagnostic Utility)
A diagnostic tool that collects comprehensive information about the array controllers in a
system and lists any problems detected.
ARM (Auto-Reliability Monitoring)
Also known as surface analysis. A fault management feature whereby hard drives are scanned
for bad sectors, and data in the faulty sectors is remapped onto good sectors. Parity data
consistency is also checked for drives in RAID 5 or RAID ADG configurations. Operates as a
background process.
array
A set of physical drives configured into one or more logical drives. Arrayed drives have
significant performance and data protection advantages over non-arrayed drives.
array accelerator
A component of some Smart Array controllers that dramatically improves disk read and write
performance by providing a buffer. Data integrity is protected by a backup battery and ECC
memory.
array capacity expansion
See
capacity expansion.