User`s guide

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Chapter 10
10. Clip Mirror Configuration
A clip mirror provides an optional, hot-backup capability for the SGI Media Server.
Though optional, a clip mirror platform is recommended. A clip mirror duplicates
ingested media content processed by the primary SGI Media Server. This redundant
structure ensures the availability of important media in the event of a catastrophic
SGI Media Server failure. This chapter describes clip mirror configuration and provides
guidance to allocate bandwidth for content transfers between a primary
SGI Media Server and the mirror platform.
The clip mirror feature requires installation of the clipmirror subsystem. This subsystem
contains the executable logic necessary to configure, initiate, and manage a clip mirror
server. The clip mirror actively synchronizes with the primary SGI Media Server clip
cache to acquire an exact copy of the media ingested by or transferred to the primary. The
primary SGI Media Server normally performs media playout and record operations and
may also be the principal recipient of file transfers from other video processing servers
or workstations.
The SGI Media Server supports only solitary clip mirror configurations—that is, those
with a one-to-one (peer-to-peer) mapping of a mirror to the primary server. Alternative
clip mirror topologies are possible but are neither supported nor encouraged.
This appendix consists of the following sections:
• “Clip Mirror Service Overview” on page 124
• “Controlling Clip Mirror Operation” on page 125
• “Configuring Primary and Mirror Platform Filesystems” on page 128
• “Redesignating Servers” on page 130
• “Bandwidth Management” on page 130