MDM Trouble Report for 2008 May 28

Telescope: 1.3m
Observer(s): armstrong (columbia)
Instrument: 4k

Problem(s) Encountered:
Around 22:00, about 20 minutes into a time series, Prospero 
began failing to write images.  An exposure was taken and read 
out, but then Prospero said:
[CB> ERROR: Cannot create unique FITS file #1
(/lhome/data/0805194K.590.fits)--Read-only file system, skipping...]
and wouldn't write the image.  

I had just begun deleting old fits files from McGraw, and feared 
that I had deleted something vital.  Talked to Jason Eastman by 
phone, who assured me that I hadn't.  He suggested I restart
everything.

Restarted Prospero, ISIS, MDM TCS Agent, Caliban ... no change.
Rebooted IC and McGraw, and toggled ccd power in dome.
Then I was able to write images again.  (Upon reboot, McGraw
complained that it had been shut down improperly.  But I had used 
the usual procedure.)

But now, all new images coming in were blank! (Prospero recorded 
the shutter opening and closing, guider field was fine, and guider 
was not vignetting the ccd field.)  So I listened for the shutter in
the dome - it wasn't functioning.  Toggled the power again, and 
that fixed it.

So.  I haven't a clue what's up with McGraw, and Prospero 
apparently sometimes says the shutter's opening and closing when, 
in fact, it isn't.

It's now 2 hours later and things are buzzing along as usual.

Please disregard that email I sent you hours ago, regarding my
inability to delete read-only files.  The files are accessible 
now that McGraw's rebooted.

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Submitted on 2008 May 28 [1:32:20]