Troubleshooting guide

F. Resetting the Array Controller (MCE4), the Motor Controller, and the Iocomm
From flamingos1a:
1. telnet baytech userid: mce4pow, motorpow, or perlepow
password: __________
(For telnet from a Kitt Peak machine, the baytech's name is flmn-4m-p).
2. reboot 1
3. logout
4. If you rebooted the perle, close all daemons (the TEMPS, MOTOR, and MCE4 xterm windows),
otherwise leave them open.
5. initflam.pl
G. Data Transfer and Data Compressing, Data Taping & DVD Burning
Data are written to disk on flamingos1a automatically. At the start of every night you should run a special
script (see below) which will automatically copy the data to nutmeg. Once the data start arriving on nutmeg,
and before writing data to tape or to a DVD, we recommend that you compress the data using gzip (we
usually compress the data as a step separate from the tar command if we are writing tapes).
If you change the file prefix frequently throughout the night, consider incrementally gzipping the transferred
data; gzip is usually pretty slow, so this will give you more time in the afternoon for archiving the data.
Whatever you do, do not gzip the data on flamingos1a as you are taking data, because it will slow down data
acquisition.
Instructions for moving data from flamingos1a to nutmeg:
Run Start.autocopy.4m.nutmeg.sh at the start of the night in order to background copy the data to nutmeg.
Common commands used for writing tapes with the DDS4 tape drive on nutmeg:
mt -f /dev/nst0 status
mt -f /dev/nst0 fsf #
mt -f /dev/nst0 rewind
mt -f /dev/nst0 offline
tar -cvf /dev/nst0 night1.dir/
Burning DVDs:
1. From a nutmeg terminal, type dvdrecord -scanbus. Examination of the output should show a Pioneer
DVD-RW burner on dev=2,0,0.
2. Use mkisofs -R -J -o night.iso night/ to make an iso file (see the appendis in the manual on
burning DVDs). Note: a DVD will hold ~ 4.3 GB of data, which is ~265 FLAMINGOS images.
3. Use dvdrecord -dao dev=2,0,0 night.iso to burn the DVD.
4. When it finishes, use mount /mnt/dvdrom and ls /mnt dvdrom to inspect the files on the DVD.
When complete, cd out of /mnt/dvdrom and umount /mnt/dvdrom and then eject /mnt/dvdrom
to eject the DVD.
FLAMINGOS@4-m, Ver. 2.34, 2006 Apr 04 Page 39 of 44