Grass Valley Aurora Playout v.6.5 - Manual (Page 19)

Housekeeper typically runs on the computer with the Main Aurora Playout application,
though it can be installed on multiple computers if necessary.
Due to differences in media server channeless connection limit, not all computers
within your broadcast operation can run Housekeeper application at the same time. If
your media server is K2 version 3.2, you can run up to seven Housekeeper applications
simultaneously. While for M-Series, Profile and K2 version 3.1 and lower; only three
Housekeeper applications can be run at the same time.
Overview of the Simple Database (SDB) Server
The SDB Server runs in the background to keep clip status current.
When the status of a clip changes, the SDB Server updates available status and clip
duration in the Aurora Playout database, which in turn updates the Aurora Playout
application. In addition, when a clip sent from Aurora Edit is associated with a Aurora
Playout placeholder, the SDB Server updates the number of missing items in the
Assignment List Manager and Assignment List Plug-in.
The SDB Server runs on the same computer as the XMOS Server, and optionally on
a second system as a hot standby backup database.
19 November 2008 Aurora Playout User Guide 19
Introducing Aurora Playout