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Entry  Fri Sep 30 02:56:56 2011, kiwamu, Update, CDS, C1IOO.ini and C1LSC.ini files reverted 
    Reply  Fri Sep 30 03:14:18 2011, kiwamu, Update, CDS, suspension became crazy : c1sus rebooted  
Message ID: 5580     Entry time: Fri Sep 30 03:14:18 2011     In reply to: 5579
Author: kiwamu 
Type: Update 
Category: CDS 
Subject: suspension became crazy : c1sus rebooted  

Quote from #5579

Then we restarted daqd.

[Suresh / Kiwamu]

The c1lsc and c1sus machine were rebooted.

 

- - (CDS troubles)

 After we restarted daqd and pressed some DAQ RELOAD buttons the c1lsc machine crashed.

The machine didn't respond to ssh, so the machine was physically rebooted by pressing the reset button.

Then we found all the realtime processes on the c1sus machine became frozen, so we restarted them by sshing and typing the start scripts.

However after that, the vertex suspensions became undamped, even though we did the burt restore correctly.

This symptom was exactly the same as Jenne reported (#5571).

We tried the same technique as Jenne did ; hardware reboot of the c1sus machine. Then everything became okay.

The burt restore was done for c1lsc, c1asc, c1sus and c1mcs.

 

- - (ITMX trouble)

During the trial of damping recovery, the ITMX mirror seemed stacked to an OSEM. The UL readout became zero and the rest of them became full range.

Eventually introducing a small offset in C1:SUS-ITMX_YAW_COMM released the mirror. The amount of the offset we introduced was about +1.

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