How to backup the FOCAS/FOCAS2 Data

• Use DAT (DSS3) on FOCAS obcp at 2nd floor.
• Use the following command for FOCAS
  falcon@focas> tar cvf - /export/home | dd of=/dev/rmt/0h bs=10b
• Use the following command for FOCAS2
  falcon@focas2> tar cvf - /export/home | rsh dd of=/dev/rmt/0h bs=10b
• Other commands
  • mt status
    check tape status
  • mt rewoffl
    rewind and removal of tape from the tape drive
  • df -k
    check disk free space
  • du -sk
    check disk usage for each directory and file
• Some notes:
  • It will take 2-3 hour to back up all FOCAS data.
  • When backing-up the FOCAS2 data, E-LAN traffic will rise up significantly. So, it needs to be done at morning (e.g., after the observation) when no network equipment (e.g., Telescope, SOSS, OBCP) are running.