User`s guide

16 007-4403-003
1: Overview of the SGI Media Server
1. The base compute module has four internal PCI slots; however, one PCI slot of the base
compute module is required for the IO9 base I/O card. Therefore, the number of
available slots in the base compute module is reduced by one.
Disk Storage
The SGI Media Server disk storage holds the XFS real-time filesystems that contain the
video content stored in the clip cache. The descriptive information about clips—for
example, clip names, duration, edit points, and so on—are stored on non-real-time
filesystems.
The storage system supports the use of scalable storage to enable the total disk space to
range from only a few gigabytes to hundreds of terabytes or more. The type of disk
storage that is used depends upon several factors, including the number and size of
stored clips, the use of RAID, and the required availability (uptime) of the system.
Two different types of disk storage are available:
• JBOD storage, sometimes called RAID-0, in which several disk drives are striped
into XLV logical volumes. This type of disk storage does not provide redundancy,
but it does provide higher bandwidth than XFS on a single disk drive.
• RAID storage, which provides high-availability, redundant digital storage.
External Devices
The SGI Media Server supports the use of the following external devices:
• Control devices using MVCP over TCP/IP
• Broadcast system automation controllers that use, among others, VDCP.
Automation controllers are connected to the server through an RS-422 serial
connection.
• Edit controllers, including the following:
– Panasonic AG-A850 editing controller (Sony/P2 RS-422 protocol).
– Buf VTC-4000 multi-VTR controller (with or without Bufnet/RS-422 adapter)
and Buf RM-4000 remote processor (Sony/P2 RS-422 protocol).
• Timecode readers, including the following: