Re: Exporting to Tape on HP/UX

andy_at_vistachrome.com (Andrew Finkenstadt) writes:

>oliver_at_io.nosc.mil (George Oliver) writes:
>>Does anyone know how to export directly to tape in Unix (specifically hp/ux).
>>There seems to be no intuitive way of doing this (of course this is ORACLE).
>>I remember way back when, I could do this in VMS. Any help would be greatly
>>appreciated.
>>Thanks,
>>George Oliver
>>NRaD, Code 423
>>email: oliver_at_nosc.mil
 

>This, UNTESTED, script should work. The basic trick is to create a
>Unix pipe file named "expdat.dmp" in the directory from which you are
>doing the export.
 

>Here is how it will work, in pictures:
 

> exp system/manager ------------------> dd (data dump) to tape
 

>So, a script which looks alot like what I use to do compressed backups
>via export:
 

> #! /bin/sh
 

> rm -f expdat.dmp || echo "Could not remove pipe. :(" ; exit 1
> mknod expdat.dmp || echo "Could not make pipe. :(" ; exit 2
 

> # now make the copy process go . N.B. the & puts it in the background!
 

> dd if=expdat.dmp of=/dev/your/tape/drive bs=yourblocksize &
 

> # now start the export
 

> exp system/manager file=expdat full=y constraints=y compress=y buffer=1024000
 

>The construct "command || echo ; exit #" says to execute the command,
>and if it FAILS, execute the echo and exit commands.

Yust link /dev/rmt0 (or whatever tapedevice) to /dev/tape.dmp and give exp /dev/tape.dmp as de dumpfile ;-)

Jan.

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