SSRL Beamline Computer Backup

SSRL Beamline Backup

Backup on VMS

The available media on VMS system are:

4mm tape drive (MKA500)
8mm tape drive (MKB400)
TK50 tape drive (MKB500)

Note: Allow 2.5 hours to write to CD.

Instruction on how to backup users data onto a VMS system:

Log on to beamline VMS computer system. There are two formats that can be written on the CD by CD-Writing-Software (CDWS), Files-11 ODS-2 and ISO-9660.

Creating a Files-11 ODS-2 CD

ODS-2 is a native OpenVMS files system that allows native OpenVMS XQP driver to mount the CD. These are created by running the command file, MAKE_ODS2_CD, which resides in the sys$specific:[CDWS] directory. The command file requires two parameters. The first is the source data. This must include the disk device name and directory or a logical device an the file names that are to be written to the CD-R. Wild card are accepted. The second is an OpenVMS volume label that can be specified to a maximum of 12 ANSI characters.

Note:
If the data is greater than 650 Megabytes the process will fail.
Prior to running MAKE_ODS2_CD, load a blank piece of CD-R media into the CD-R drive.

The VMS system which has CD writer is called ALPHA1, the proxy is set on this system. When you are logged onto the beamline computer that your data resides on, make the data directory as your default directory by doing the following:
$set def $data:[b_username] or
$set def $data:[b_username.whatever]

Then copy your data files from the beamline computer to ALPHA1 by doing the following:
$copy *.*;* .alhpa1:: or
set host to ALPHA1, logon and create a sub directory and then copy by doing:
$create/dir $data:[b_username.whateversubdir]
$copy *.*;* .alpha1::$data:[b_username.whateversubdir]
After your data got copied, walk to ALPHA1 (in the small room across from beamline 1-5) and log on to ALPHA1.

This example will create an ODS-2 CD with all of the *.*;* files that resides in $data:[b_username...] using nov00 as the volume label:
$@sys$specific:[CDWS]MAKE_ODS2_CD $data:[b_username...]*.*;* nov00
Files may also be excluded from a directory by including the /EXCLUDE after the device and directory. This example will create an ODS-2 CD with all of the files except *.DOC that resides in $data:[b_username...] using nov00ALL as the volume label.
$@sys$specific:[CDWS]MAKE_ODS2_CD $data:[b_username...]*.*/exclude=*.DOC nov00ALL

If you have question regarding backing up your data files, contact Ellie Fazli at extention 3038 or Samuil Belopolskiy at extention 3003.

Last Updated: 01 DEC 2000
Content Owner: Ellie Fazli
Page Editor: Ellie Fazli