ABOUT RAID 1 ARRAYS

 

RAID 1 - MIRRORED ARRAY

 

RAID 1 involves mirroring the data on at least two disks using hardware or software.  This level provides

users with a high level of data security.  In the event that one drive fails, the other drive maintains the
data until the failed drive can be replaced. 

ADVANTAGES OF RAID 1 DISADVANTAGES OF RAID 1
   

Excellent fault tolerance

Uses half the capacity of the disks total capacity

Good read/write performance

More expensive than RAID 0

Rebuilding is quick

 
   

RAID 1 ERRORS THAT CAN OCCUR

SCSI disk error
SectorIdNotFound
DriveReady SeekComplete DataRequest Error
Disk failure
HDD failure
RAID controller battery failed
A disk read error occurred
RAID 1 failed
RAID 1 won't boot
broken RAID 1
RAID 1 crash
RAID 1 failure

 

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