13
Storage
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RAID volume computation
Depending on the hard drive capacity, the system volume and data volume
capacity can have different sizes. A simple formula to calculate data volume
size per RAID level is shown in the table below (where SSV is the size of the
system’s volume in gigabytes):
Refer to the following table for changing the data volume of your hard drive
or changing the default configuration setting according to your data volume
size preference:
Use the RAID configuration utility bundled with your NAS to change the system
volume size and RAID level of your hard drive. For more information, see
RAID level
Formula
5
[{(Per drive capacity × 4) – 2 × SSV}/4] × 3
0+1
[{(Per drive capacity × 4) – 2 × SSV}/4] × 2
0
(Per drive capacity × 4) – 2 × SSV
Drive capacity
(GB)
System
volume (GB)
Data volume
RAID 5 (GB)
Data volume
RAID 10 (GB)
Data volume
RAID 0 (GB)
120
10
345
230
460
250
10
735
490
960
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