Biostar NF4ST-A9 User Manual page 24

RAID 1:
Every read and write is actually carried out in parallel across 2 disk
drives in a RAID 1 array system. The mirrored (backup) copy of the
data can reside on the same disk or on a second redundant drive in the
array. RAID 1 provides a hot-standby copy of data if the active volume
or drive is corrupted or becomes unavailable because of a hardware
failure.
RAID techniques can be applied for high-availability solutions, or as a
form of automatic backup that eliminates tedious manual backups to
more expensive and less reliable media.
Block 1
Block 2
Block 3
Features and Benefits
Drives: Minimum 2, and maximum is 2.
Uses: RAID 1 is ideal for small databases or any other
application that requires fault tolerance and minimal capacity.
Benefits: Provides 100% data redundancy. Should one drive
fail, the controller switches to the other drive.
Drawbacks: Requires 2 drives for the storage space of one
drive. Performance is impaired during drive rebuilds.
Fault Tolerance: Yes.
NF4ST-A9
nVIDIA
nForce 4
(CK8-04)
22
Block 1
Block 2
Block 3