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Huge Media Vault - Dual Max User’s Guide
800000 rev K
IMPORTANT: Changing the Mode can cause any existing data to be over written. Make sure any data you
want to keep is stored elsewhere before making any changes.
Remove or delete any known partitions before changing the mode, this will keep the OS from getting
confuse due to left over file systems information left on the MediaVault.
Consult the RAID Compatibility table in the Application Notes section to ensure proper operation.
Mode
*Mode
Select
Effect Additional
information Pro
Con
RAID
0
0 Striped
data
Data striped across all five drives of the
RAID controller. Usable storage is the
sum of all five drives.
Maximum
Speed
No Drive
Redundancy
RAID
3@2k
1
2K bytes
sector size
Striped data
with
redundancy.
Block size is based on 2048 bytes. Data
striped across four drives plus one drive
for redundant information. Usable
storage is the sum of four drives.
Drive
Redundancy
Medium
Speed
RAID
3
2
512 bytes
sector size
Striped data
with
redundancy.
Block size is based on standard 512
bytes. Data striped across four drives
plus one drive for redundant
information. Usable storage is the sum
of four drives. Use this mode if you are
not certain which of the two RAID 3 to
use.
Drive
Redundancy
Minimum
Speed
Manu
factur
ing
Test
7
System
verification
test
This mode will over write data on the
Huge Media Vault as the diagnostic will
perform read and write tests on every
drive and on every block of data. The
unit records vital parameters of each
disk drive’s performance, and it can be
retrieved using the Diagnostic Port for
further analysis.
*Make sure to “Double Beep” to set the mode.
Double Beep
As a precautionary measure to protect from un-intentional mode changes. A combination of holding down
the Reset Button and turning the unit on must be performed to cause the change.
1) You will do this twice, one for each RAID controller. Start from one side and repeat this process
for the other side.
2) Determine the Mode desired and note the Mode Select value.
3) Set the value on the Mode Select switch. Use a pointed instrument and press the tiny button above
or below the number window.
4) Turn off the Huge Media Vault unit.
5) Press and hold the Reset Button.
6) Apply power to the unit.
7) Within about 15 seconds you will hear two beeps to confirm the change.
8) Release the Reset Button
9) Turn off the unit and repeat the procedure for the other side.