Lenze CPC 5100 - Handbuch (Seite 64)

Appendix
RAID system
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64 LDCDS−CPC5100 DE/EN 1.1
7.2 RAID system
A RAID system serves to organise several physical hard disks of a computer. The operation
of a RAID system requires at least two hard disks that form an interconnection.
Possible advantages of a RAID system:
ƒ Increasing the security (redundancy)
ƒ Increasing the transfer rate
ƒ Establishing great logical drives
ƒ Replacement of hard disks and increasing the storage space during system operation
The following RAID levels are supported by the IPC:
ƒ RAID 0 − striping, acceleration without redundancy
RAID 0 increases the transfer rate compared to a single hard disk by dividing the hard
disks involved (at least 2) into connected blocks of the same size.
ƒ RAID 1 − mirroring
Ein RAID−1 system consists of at least two hard disks on which the same data are stored
(redundancy). This increases data integrity in the case of a hard disk error.
ƒ RAID 5 − power and parity
RAID 5 offers both an increased data throughput when data are read (RAID 0) and
redundancy (RAID 1).
ƒ RAID10 − interconnection
Ein RAID−10 interconnection is a RAID 0 via several RAID 1. The features of RAID 0 and
RAID 1 are combined. A RAID−10 interconnection requires at least four hard disks.
Further information can be gathered from the documentation "Intel Matrix Storage
Manager" on the manual CD.
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Note!
When using a RAID system, please note the following:
ƒ The assignment of the removable hard disks to the SATA ports may not be
changed (see labelling of the ports).
ƒ If a hard disk is changed during operation, the retention clip of the
expansion cards may not be removed.