Background

This document provides some background on the process by which the DEIMOS interacts with the Sybase database servers.

Relevant Machines

Information Flow

DREMEL Process

The diagram below illustrates the flow of information between keamano and waiaha during the reconfiguration process on DEIMOS.


Click to enlarge.

The following processes make direct connections to the Sybase server:

Process Host Path Function
GenMaskData keamano /local/kroot/bin/mask/GenMaskData Generate FITS chunks for inclusion into image headers.
dremel keamano /local/kroot/bin/dremel Read current configuration information
CodeGen keamano /usr/local/ucolick/share/tcl/memes/CodeGen Read database and write config file for dispatchers
confio keamano /local/kroot/bin/confio Upload configuration info to database
dashboard polo /local/kroot/bin/obsr DEIMOS observer interface

Slitmask Design & Milling


Click to enlarge.

Database Syncing

The image below, extracted from Managing DEIMOS removable elements and instrument configuration a 2002 SPIE poster by De Clarke, provides an overview of the process of maintaining sychronization between the operational version of the database at Keck and the master version at Lick.


Click to enlarge.

To summarize this diagram:

Information

The following information relevant to DEIMOS is stored in the database tables: (TBD)

See Also