Chapter 2: Hardware Installation
M5 x 30mm Pan Head screws through the holes. (See
Figure 2-16
)
Figure 2-16: Securing the Subsystem
2.7 Hard Drive Installation
2.7.1
Hard Drive Installation Prerequisites
Hard drives must be purchased separately. When you select hard
drives, the following factors should be considered:
Capacity (MB/GB):
Use drives with the same capacity. RAID arrays
adopt the “least-common-denominator” approach, meaning the
maximum capacity used in each drive for comprising a logical
configuration is the maximum capacity of the smallest drive.
Therefore, using hard drives with the same capacity can ensure that
all the capacity is fully used.
NOTE:
Even disk drives by the same manufacturer, of the same model, and
claiming the same rated capacity may not have capacity 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
firmware manual that came with your enclosure.
Profile:
The drive trays are designed for 3.5-inch wide x 1-inch pitch
hard drives.
Drive type:
The subsystem is designed to accommodate SAS or
SATA-II hard drives.
MUX kit:
For the dual-controller S12E-R1132-4 subsystem, SAS-to-
SATA MUX kits come with the drive trays as default equipments.
Only with MUX kits can SATA drives be used in the subsystem. If
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