EonStor DS S12/S16/S24 Series Hardware Manual
DIMM module for RAID models
CBM (for some RAID models: see
1.4.4 CBM (Cache Backup Module) for RAID
Models
)
PSUs including cooling modules
2.3.3
Components to Be Installed
You must install the following components:
The enclosure itself
Hard
drives
Drive
trays
Cabling
CBM (for some RAID models: see
1.4.4 CBM (Cache Backup Module) for RAID
Models
)
2.4
Hard Drive Installation
2.4.1
Hard Drive Installation Prerequisites
Hard drives are separately purchased. When purchasing hard drives, the following
factors should be considered:
Capacity (MB/GB):
Use drives with the same capacity. RAID arrays use a
“least-common-denominator” approach, meaning the maximum capacity used in
each drive for composing a RAID array is the maximum capacity of the smallest drive.
Therefore use big drives with the same storage capacity.
WARNING
Even disk drives by the same manufacturer, of the same model, and claiming the
same rated capacity may actually carry different block numbers meaning that their
capacity may not be exactly the same.
When configuring disk drives into a RAID array, you may use a slightly smaller
capacity as the “
Maximum Disk Capacity
” in each individual disk drive. The
configuration option can be found in the interface-specific firmware manual that
came with your enclosure.
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