Sony HDXS-C200, Руководство по обслуживанию

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Functional description
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Functional description
The Sony HDXS-C200 server is designed specifically to
support HDXchange, a client-server workgroup system for
importing, exporting and editing audio visual (AV)
material for use by playout devices.
The compact 3U-high chassis is designed to be used in a
rack-mount system in a server room environment.
Data storage
The server’s main function is to allow clients to run the
HDXchange suite of applications installed on the server
and to store the media content generated by them.
The server provides two Redundant Array of Independent
disks (RAID) arrays comprised of Hard Disk Drives
(HDDs). The larger one, available at the front panel, stores
media, and the smaller one, located internally, stores the
operating system (OS).
Both Media and OS RAID arrays are configured in a
‘mirror’ arrangement that creates an exact copy (or mirror)
of the data on two identical disks. This is useful when read
performance or reliability are more important than data
storage capacity. This is known as a ‘fault tolerant’ system
because if one of the mirrored drives suffers a mechanical
failure (e.g. a spindle failure) or does not respond, the
remaining drive will continue to function and data will not
be lost.
Media RAID
The server provides a total of 8 TB of storage comprising
sixteen 500 GB hard disk drives (HDDs) (see
“Media
RAID” on page 20 ). Only 4 TB are available to the user for
storage of media as each drive is duplicated by a ‘mirror’
drive containing the same data, thereby ensuring that
media is not lost in the event of a single disk failure.
The HDDs are accessible from the front of the unit, after
removal of the front bezel, and are arranged in a specific
order which must be maintained. If multiple drives are
removed for any reason, they must be returned to their
original positions. Failure to do this will result in
unrecoverable loss of media. See
Chapter 2, Description
for an illustration showing the numbering scheme.
Control of the Media RAID comes from a RAID
Controller Card which is installed in a Motherboard PCI
slot. Power supplies are delivered via the System Power
Board to the Backplane boards.
OS RAID
The Operating System RAID comprises two HDDs,
installed within the server unit (see
“Operating system
(OS) RAID” on page 26 ). A ‘mirror’ arrangement ensures
that the system can continue to operate in the event that a
fault develops in one of the HDDs.
Control of the OS RAID is achieved by software. Control
and data is received from the Motherboard, with power
supplies delivered via the System Power Board and the
Slim Power Distribution Board.