Mixed (Raid 1 And Raid 0) - LaCie 301382U User Manual

LaCie 2big Quadra Enterprise Class
User Manual
3.1.4.

Mixed (RAID 1 and RAID 0)

In Mixed mode, the two physical disks are combined so that two
logical volumes mount simultaneously on the desktop (Fig.
✦ One Safe volume (RAID 1) where data is automatically mir-
rored on each physical disk. This volume uses 50% of the
available capacity of each disk (the available capacity cannot
exceed 50% of the lowest-capacity single disk).
IMPORTANT INFO: If one physical disk fails, the data of the SAFE
volume is available on the second disk. Only 25% of full capacity
is protected by mirroring. In this case, data on the Fast (RAID 0)
volume will be lost.
✦ One Fast volume (RAID 0) enables the user to work with the
high speed of RAID 0.
Applications
✦ Provides two volumes for different data security needs.
✦ Only 75% of total formatted capacity is available due
to mirroring on the Safe volume.
• D n P
esign by eil oulton
10):
Volume 1
RAID 1
Volume 2
RAID 0
Fig. 10
page 17
A1 A1
B1 B1
C1 C1
D1 D2
E1 E2
F1 F2
Disk 1 Disk 2
RAID