Jbod (Just A Bunch Of Disks) - LaCie 2big USB 3.0 User Manual

LaCie 2big USB 3.0
User Manual
3.1.2.

JBOD (Just a bunch of disks)

When the 2big USB 3.0 is set to JBOD, each drive is considered
a separate device, similar to individual hard disk drives. Each disk
will mount on your computer as separate hard drives, divided into
the partitions created by your operating system's disk manage-
ment utility. One great advantage of JBOD is the use of the full
capacity of both drives. Also, in the event of a single drive failure,
files stored on the healthy drive are not lost. However, this con-
figuration offers none of the benefits of RAID 0 (speed) or RAID 1
(complete data protection).
Applications
JBOD can be used with any application. In the event of
a single drive failure, files on the healthy drive will not be
lost. However, choosing to forgo RAID 0 and RAID 1 does
have its drawbacks since superior performance or total data
security will not be available.
IMPORTANT NOTE: Removing a drive in JBOD mode requires
that the user stop accessing data from the 2big USB 3.0. Make
certain that all transfers on both drives are finished before remov-
ing either disk.
Removing or adding a drive in JBOD Mode
Power Off
Insert or remove one or both disks as listed in
Installing Drives.
Power On
The icon(s) for a disk that was removed might remain visible in
Computer/Computer (Windows) or the desktop (Mac). While the
icon may remain, data will no longer be accessible since the disk
has been removed.
To avoid leaving a trace icon when using a JBOD configuration,
LaCie recommends unmounting and/or shutting down the 2big
USB 3.0 before removing a drive. See sections
ing Your Hard Drive and 3.3. Removing and Installing Drives
more information.
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DESIGN BY NEIL POULTON
3.3. Removing and
2.3. Disconnect-
Fig. 11
My
for
JBOD
A E
B F
C G
D H
Disk 1 Disk 2
RAID
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