
Span
The BIG storage policy
concatenates the two
physical hard drives as
a single large volume,
resulting in a seamless
expansion. Hard drive A
and B are concatenated
into a single virtual volume
in the Figure below with
a storage capacity that is equal to the sum of each of the
physical hard drives A and B:
Direct Mapping
The DUAL or JBOD (Just
a Bunch of Disks) storage
policy enables each hard
drive to be seen separately.
RAID 0 (Stripe)
The FAST storage policy, also
called striping or RAID 0,
presents the best data speed
by using both disks in parallel.
Hard drive data segments
are written to different
disks simultaneously which
increases performance, but
at an increased fault sensitivity
(two drive's worth of data may
be lost at a single disk fault.)
The FAST storage policy creates a single virtual volume that
is striped across both hard drives, with a storage capacity
that is equal to the sum of both hard disk drives.
8 13
How to Safely
Dismount and Turn Off
Your GForce3 Mega
What do 'mounting' and 'dismounting' mean? When a device
such as a hard drive is mounted, that means the computer
‘sees’ the device and is able to communicate with it. When
you dismount a device, the computer no longer sees it. The
device may still be running but the computer cannot access
it, as though the device no longer exists.
Never turn off or unplug a hard drive without dismounting
it first. Doing so could cause data on the drive to be lost or
damaged.
How to safely dismount and turn off the
drive with the computer running
Mac Users
Drag the icon for the external hard drive to the Trash. The drive will
dismount and you can then safely turn if off. You may then unplug
the power cord and data cable if you want to disconnect the drive.
PC Users
1. Locate the System Tray. The System Tray includes the
time display in the bottom right, and icons to the left of the
time. One of the icons will be an hot plug icon (
).
2. Left-click on (
). You will receive the alert message “Safely
Remove..” followed by the drive description and drive letter
for the device.
3. Left-click on the appropriate device (with the drive letter
matching the one used by the external hard drive). After a
few seconds, Windows will give you a message that it is safe
to remove the device.
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