HP Xw8200 Intel Integrated SATA RAID: Intel Application Accelerator User's Man - Page 90

Glossary, User's Manual

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Glossary R RAID RAID 0 RAID 1 RAID Array RAID Ready RAID Volume SCSI Serial ATA (SATA) Strip Stripe Sustained transfer rate Theoretical transfer rate Redundant Array of Independent Disks Data striping Array. RAID 0 stripes the data across all the drives but doesn't utilize parity. This RAID level is designed for speed and is the fastest of the RAID levels but provides the least protection. Mirrored Disk Array. RAID 1 requires that each primary data disk have a mirrored disk. The contents of the primary disk and the mirror disk are identical. RAID 1 provides the best data protection but is slower than RAID level 0. Note: Intel Application Accelerator version 3.0 does not support RAID 1. A group of physical disk drives managed by either hardware, software, or a combination of both Term used to describe a system that an end-user can turn into a RAID system by simply adding a second Serial ATA hard drive and invoking the migration feature A block of capacity, allocated from a RAID Array and arranged into a RAID topology. The operating system sees a RAID Volume as a physical disk. Small Computer System Interface New storage interface designed to replace parallel ATA (e.g. IDE technology). SATA was designed for a variety reasons, including performance headroom, cabling issues, and voltage tolerance requirements. Grouping of data on a single physical disk within a RAID Volume The sum of all strips in a horizontal axis across physical disks within a RAID Volume Rate at which the drive can transfer data sequentially from multiple tracks and cylinders on the disk (closer to real-world file transfers) Actual speed that the drive can read bits from the surface of the platter or write bits to the surface of the platter (can be used to compare drives against one another) 90 User's Manual

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Glossary
R
RAID
Redundant Array of Independent Disks
RAID 0
Data striping Array. RAID 0 stripes the data across all the drives but doesn’t
utilize parity. This RAID level is designed for speed and is the fastest of the
RAID levels but provides the least protection.
RAID 1
Mirrored Disk Array. RAID 1 requires that each primary data disk have a
mirrored disk. The contents of the primary disk and the mirror disk are
identical. RAID 1 provides the best data protection but is slower than RAID
level 0. Note: Intel Application Accelerator version 3.0 does not support RAID
1.
RAID Array
A group of physical disk drives managed by either hardware, software, or a
combination of both
RAID Ready
Term used to describe a system that an end-user can turn into a RAID system
by simply adding a second Serial ATA hard drive and invoking the migration
feature
RAID Volume
A block of capacity, allocated from a RAID Array and arranged into a RAID
topology. The operating system sees a RAID Volume as a physical disk.
SCSI
Small Computer System Interface
Serial ATA (SATA)
New storage interface designed to replace parallel ATA (e.g. IDE technology).
SATA was designed for a variety reasons, including performance headroom,
cabling issues, and voltage tolerance requirements.
Strip
Grouping of data on a single physical disk within a RAID Volume
Stripe
The sum of all strips in a horizontal axis across physical disks within a RAID
Volume
Sustained transfer rate
Rate at which the drive can transfer data sequentially from multiple tracks and
cylinders on the disk (closer to real-world file transfers)
Theoretical transfer rate
Actual speed that the drive can read bits from the surface of the platter or
write bits to the surface of the platter (can be used to compare drives against
one another)
90
User's Manual