Dell 341-7212 User Guide - Page 87

Product Info, Product Name, RAID 0

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Product Info A physical disk property indicating the vendor-assigned model number of the drive. Product Name A controller property indicating the manufacturing name of the controller. RAID A group of multiple, independent disk drives that provide high performance by increasing the number of disks used for saving and accessing data. A RAID disk group improves input/output (I/O) performance and data availability. The group of disk drives appears to the host system as a single storage unit or as multiple logical disks. Data throughput improves because several physical disks can be accessed simultaneously. RAID configurations also improve data storage availability and fault tolerance. Redundant RAID levels (RAID levels 1, 5, 6, 10, 50, and 60), provide data protection. RAID 0 RAID 0 uses data striping on two or more disk drives to provide high data throughput, especially for large files in an environment that requires no data redundancy. The PERC 5/i, PERC 6/i, SAS 5/iR, and SAS 6/iR controllers support RAID 0. RAID 1 RAID 1 uses data mirroring on a pair of disk drives so that data written to one physical disk is simultaneously written to the other physical disk. RAID 1 works well for small databases or other small applications that require complete data redundancy. The PERC 5/i, PERC 6/i, SAS 5/iR, and SAS 6/iR controllers support RAID 1. RAID 5 RAID 5 uses data striping and parity data across three or more disk drivers (distributed parity) to provide high data throughput and data redundancy, especially for applications that require random access. The PERC 5/i controller and the PERC 6/i controller support RAID 5. Glossary 87

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Glossary
87
Product Info
A physical disk property indicating the vendor-assigned model number of the
drive.
Product Name
A controller property indicating the manufacturing name of the controller.
RAID
A group of multiple, independent disk drives that provide high performance by
increasing the number of disks used for saving and accessing data. A RAID disk
group improves input/output (I/O) performance and data availability. The group
of disk drives appears to the host system as a single storage unit or as multiple
logical disks. Data throughput improves because several physical disks can be
accessed simultaneously. RAID configurations also improve data storage
availability and fault tolerance. Redundant RAID levels (RAID levels 1, 5, 6, 10,
50, and 60), provide data protection.
RAID 0
RAID 0 uses data striping on two or more disk drives to provide high data
throughput, especially for large files in an environment that requires no data
redundancy. The PERC 5/i, PERC 6/i, SAS 5/iR, and SAS 6/iR controllers
support RAID 0.
RAID 1
RAID 1 uses data mirroring on a pair of disk drives so that data written to one
physical disk is simultaneously written to the other physical disk. RAID 1 works
well for small databases or other small applications that require complete data
redundancy. The PERC 5/i, PERC 6/i, SAS 5/iR, and SAS 6/iR controllers
support RAID 1.
RAID 5
RAID 5 uses data striping and parity data across three or more disk drivers
(distributed parity) to provide high data throughput and data redundancy,
especially for applications that require random access. The PERC 5/i controller
and the PERC 6/i controller support RAID 5.