LaCie hard disk MAX
• DESIGN BY NEIL POULTON
RAID
User Manual
page 20
5.2. SAFE 100 (RAID 1)
SAFE mode (also referred to as RAID 1) is a secure RAID mode
that requires at least 2 drives and works with pairs of drives.
One logical volume mounts on the computer and the combined
available capacity of both drives is limited to the capacity of
the lowest-capacity disk. If one physical disk fails, the data is
available immediately on the second disk. No data is lost if one
disk fails.
Applications
RAID 1 provides maximum data safety in the event of a
single disk failure, but because data is written twice, per-
formance is reduced slightly when writing. RAID 1 is a
good choice when safety is more important than speed.
RAID 1
A1
B1
C1
D1
E1
A1
B1
C1
D1
E1
Fig. 5.2
