Discrepancy In Reported & Actual Size Capacity; Hdd Allocation - Onnto DataTale 3.5” SATA HDD 2-bay RAID System User Manual

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Discrepancy in Reported & Actual Size Capacity
Q:
If I have a 750GB HDD, why does the RAID System only recognizes the HDD
available space as to be less than 750GB?
A:
Many customers are confused by their host systems when it reports a
discrepancy between reported capacity and actual capacity. Several factors can
come into play when your host system views and reports the capacity of a hard
drive. There are actually two different numbering systems used to express units
of storage capacity:
Binary, which says that a kilobyte is equal to 1024 bytes; and
Decimal, which says that a kilobyte is equal to 1000 bytes.
Most commonly used to display storage capacity is in Decimal. The surprising
fact is that even though it seems like you will have more bytes under Binary, the
Decimal calculation system actually presents a greater storage capacity. More
description on capacity issues can be found at the Seagate website under FAQs.
http://www.seagate.com/ww/v/index.jsp?locale=en-
US&name=Storage_Capacity_Measurement_Standards_-
_Seagate_Technology&vgnextoid=9493781e73d5d010VgnVCM100000dd04090
aRCRD

HDD Allocation

Q:
I've pulled out all the disks inside the RAID System and now I want to put
them back, but I don't remember the HDD allocation. Will my data be safe if I put
the HDDs back into the RAID System if they're not in the correct allocation?
A:
No, it would NOT be safe for your data if the HDDs were not placed back into
the RAID System in their original arrangement order. We would highly
recommend all users to use the number stickers in the package to help identify
which HDD belongs to which HDD slot. You may stick them onto the handles or
HDDs as identification.
HDD Allocation
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