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SHARCS Problem: Lost Server

Problem Description:

Lost Server, highlighted in red appears in top left of sharcs_fe GUI.

Manifestation:

sharcs_gui reports Lost Server, highlighted in red in upper left. sharcs_fe GUI may become unresponsive.

Solution/Recovery:

Level 1

  • user@covert.ucolick.org > ao status sharcs - Check if Sharcs is running.
  • user@covert.ucolick.org > ao restart sharcs - (Re-)start Sharcs.
  • user@covert.ucolick.org > sharcs_fe - Start Sharcs GUI.
  • Select Windows menu in Sharcs GUI.
  • Select Setup.
  • Execute Connect.
  • Execute Init.

Level 2

  • Connect to stealthie from covert via the rdesktop protocol:

    user@covert > rdesktop stealthie
  • Verify whether Sidecar ASIC IDE and ColdSidecar Server are running.

    If necessary, (re-)start Sidecar ASIC IDE and ColdSidecar Server, according to standard start-up instructions.

  • In sharcs_fe GUI: Windows... Setup... Connect; Init.
  • For completeness, stop and re-start shaneao software (which may also necessitate a re-start of peeko).
  • Take test exposure on science camera to verify recovery.

Cause:

  • Problem with the samba export of the drive from Linux machine covert onto which the WinXP machine stealthie writes the FITS files.
  • Occurs sporadically following attempts to modify detector windowing.

Associated Issues:

Change Log:

2018-12-22: Updated.
2016-08-18: Updated.
2014-07-04: First version.


This document last updated (UTC): Tuesday 04 March 2025