EIC TOP

DAT Drive

  • You can use DAT Drive on eic02 and eic03.
    • /dev/st0------rewinding
    • /dev/nst0----no rewinding
  • Use tar or cpio
  • “mt” command to rewind or forward.
  • mt change uncompress or compress.
  • When you use DAT tape, please confirm compression mode.
  • Writing tape
    $ mt -f /dev/st0 rewind           rewinding tape media
    $ mt -f /dev/st0 compression 0    define 0 for uncompression, 1for -compression.
    $ cd /home/sgi/test               moving backup directory
    $ tar cvf /dev/st0 .              writing current directory to tape, and rewind when it finishes
  • Reading tape
    $ mt -f /dev/st0 rewind           rewinding tape media
    $ cd /home/sgi/test               moving writing directory
    $tar xvf /dev/st0                 writing data to current directory , and rewind when it finishes
  • Confirming tape media
    $ mt -f /dev/st0 rewind           rewinding tape media
    $tar tvf /dev/st0                 confirming tape media
  • See online manual “man mt” or “man tar”

Blu-ray Drive

  • Blu-ray drive is available on eic00, eic01.
  • Insert empty Blu-ray disc into Blu-ray Drive
  • If pop-up window appear, click "Cancel"
  • Following sample shows how to write "sample_dir" directory to Blu-ray disc.
    [user@eic00 ~]$ ls -lR sample_dir/
    sample_dir/:
    total 8
    drwxrwxr-x 2 user user 4096 Mar  4 17:48 DATA1
    drwxrwxr-x 2 user user 4096 Mar  4 17:49 DATA2
    
    sample_dir/DATA1:
    total 4002496
    -rwxr-xr-x 1 user user 4044230603 Mar  4 17:41 data1
    -rw-r--r-- 1 user user 37660806 Mar  4 17:48 sample2
    -rw-r--r-- 1 user user 16657930 Mar  4 17:48 sample3
    
    sample_dir/DATA2:
    total 375092
    -rwxr-xr-x 1 user user  622836 Mar  4 17:49 building.gfa
    -rwxr-xr-x 1 user user 3028873 Mar  4 17:49 c60_mpe.gfa
    -rw-r--r-- 1 user user 380432384 Mar  4 17:49 sample10
  • Use bdr command.
    [user@eic00 ~]$ bdr sample_dir
    Executing 'mkisofs sample_dir | builtin_dd of=/dev/sr1 obs=32k seek=0'
    I: -input-charset not specified, using utf-8 (detected in locale settings)
      0.23% done, estimate finish Wed Mar  4 18:01:44 2015
    /dev/sr1: "Current Write Speed" is 8.2x4390KBps.
     0.46% done, estimate finish Wed Mar  4 18:52:47 2015
     0.69% done, estimate finish Wed Mar  4 18:40:37 2015
     0.91% done, estimate finish Wed Mar  4 18:32:44 2015
     1.14% done, estimate finish Wed Mar  4 18:26:31 2015
     1.37% done, estimate finish Wed Mar  4 18:23:37 2015
    ....
     99.82% done, estimate finish Wed Mar  4 18:04:47 2015
    Total translation table size: 0
    Total rockridge attributes bytes: 0
    Total directory bytes: 4096
    Path table size(bytes): 38
    Max brk space used 1a000
    2188964 extents written (4275 MB)
    builtin_dd: 2188976*2KB out @ average 5.5x4390KBps
    /dev/sr1: flushing cache
    /dev/sr1: closing track
    /dev/sr1: closing session
    /dev/sr1: reloading tray
  • It will take about 30 minutes to write 20GB
  • BD-R will be automatically ejected and reloaded after writing process finish. It is mounted as /media/CDROM.
    [user@eic00 ~]$ ls -lR /media/CDROM
    /media/CDROM:
    total 4
    dr-x------ 1 user user 2048 Mar  4 17:48 data1
    dr-x------ 1 user user 2048 Mar  4 17:49 data2
    
    /media/CDROM/data1:
    total 4002496
    -rwxr-xr-x 1 user user 4044230603 Mar  4 17:41 data1
    -rw-r--r-- 1 user user 37660806 Mar  4 17:48 sample2
    -rw-r--r-- 1 user user 16657930 Mar  4 17:48 sample3
    
    /media/CDROM/data2:
    total 375092
    -rwxr-xr-x 1 user user  622836 Mar  4 17:49 building.gfa
    -rwxr-xr-x 1 user user 3028873 Mar  4 17:49 c60_mpe.gfa
    -rw-r--r-- 1 user user 380432384 Mar  4 17:49 sample10
    • ISO9660 format might be case-insensitive letter when it is mounted.
  • In order to read this disc on any drive, you have to finalize. Run bdclose command, this disc will become read-only.
    [user@eic00 ~]$ bdclose
    Executing 'builtin_dd if=/dev/zero of=/dev/sr1 obs=32k seek=139938'
    /dev/sr1: "Current Write Speed" is 8.2x4390KBps.
    4587651072/25025314816 ( 0.0%) @0.0x, remaining 945:00 RBU 100.0% UBU   3.0%
    4587651072/25025314816 ( 0.0%) @0.0x, remaining 1575:01 RBU 100.0% UBU 100.0%
     ....
    24977211392/25025314816 (99.8%) @8.0x, remaining 0:01 RBU 100.0% UBU  97.0%
    :-[ WRITE@LBA=ba7400h failed with SK=5h/INVALID ADDRESS FOR WRITE]: Invalid  argument
    :-( write failed: Invalid argument
    /dev/sr1: flushing cache
    /dev/sr1: closing track
    /dev/sr1: closing session
  • Write error will appear but it doesn't matter,eject your disc.
    [user@eic00 ~]$ eject /dev/sr1
  • Insert it again, confirm your data
    [user@eic00 ~]$ ls -lR /media/CDROM
    /media/CDROM:
    total 4
    dr-x------ 1 user user 2048 Mar  4 17:48 data1
    dr-x------ 1 user user 2048 Mar  4 17:49 data2
    
    /media/CDROM/data1:
    total 4002496
    -rwxr-xr-x 1 user user 4044230603 Mar  4 17:41 data1
    -rw-r--r-- 1 user user 37660806 Mar  4 17:48 sample2
    -rw-r--r-- 1 user user 16657930 Mar  4 17:48 sample3
    
    /media/CDROM/data2:
    total 375092
    -rwxr-xr-x 1 user user  622836 Mar  4 17:49 building.gfa
    -rwxr-xr-x 1 user user 3028873 Mar  4 17:49 c60_mpe.gfa
    -rw-r--r-- 1 user user 380432384 Mar  4 17:49 sample10

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