Biostar NF520-A2 TE Manuale Proprietario
Motherboard Manual
22
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.
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.
Features and Benefits
Drives:
Minimum 2, and maximum is 2.
Uses:
RAID 1 is ideal f or small databases or any other application that
requires f ault tolerance and minimal capacity.
Benefits:
Prov ides 100% data redundancy. Should one driv e f ail, the
controller switches to the other drive.
Drawbacks:
Requires 2 driv es for the storage space of one driv e.
Perf ormance is impaired during driv e rebuilds.
Fault Tolerance:
Yes.
Blo ck 1
Block 2
Block 3
Block 3
Block 1
Block 2
Block 3
Block 2
Block 3