Safe 100 (Raid 1) - LaCie 2big User Manual

LaCie 2big
User Manual

6.4. Safe 100 (RAID 1)

In Safe 100 mode, the two physical disks are
mirrored together (RAID 1) so that one single logical
volume mounts on the desktop.
All of the data (100%) are saved simultaneously
on each disk (the available capacity cannot exceed the
available capacity of the lowest-capacity single disk). If
one physical disk fails, the data are available immediately
on the second disk.
disk 1
disk 1
disk 2
disk 2
Understanding RAID
One Safe volume
disk 1
Fig. 6.4
Characteristics and Advantages
Maximum data safety
❖
If one physical disk fails, its data are accessible on
❖
the second disk.
Safe 100 reduces the total available capacity by
❖
50% because two copies of the data are saved.
Recommended Uses
Payroll
❖
Accounting
❖
Financial
❖
Any use that requires high availability and safety
❖
disk 1
page 
disk 2
disk 2