backup command on HP-UX fail

Question

I have two biggest file and i am trying to take backup of them to a tape drive. the operate system is HP-UX and the directory of the tape drive is /dev/rmt/2m.

The command that i perform for backup was tar cvf /dev/rmt/2m file1 and after that the file2

But when i use the command to view the file

tar tvf /dev/rmt/2m

that command show me that i have only 1 file backup ( the last file2).

Please can you help on this. where is the problem ? The problem is on backup command or the command to view the file.

Thanx in advance

Romeo Ninov · Answer 1 · 2019-12-23T15:48:46.560

0

Not sure for HP-UX but maybe device you use is autorewind so you should change the device or use tar on this way:

tar cvf /dev/rmt/2m file1 file2

Or you can try to use

tar cvf /dev/rmt/2mn file1
tar cvf /dev/rmt/2mn file2

as this driver is not autorewind

edited Dec 23 '19 at 15:48

answered Dec 23 '19 at 15:35

Romeo Ninov

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Hi, The both files are too big and should take one by one. – endrimi Dec 23 '19 at 15:39
If both files can be stored in to the tape IMO the size is not important. Just try – Romeo Ninov Dec 23 '19 at 15:39
I have tried but the command shoe me that the size is to big. – endrimi Dec 23 '19 at 15:40
how big they are? – Romeo Ninov Dec 23 '19 at 15:41
the files inside contains to much info inside and they are .gz in the end. i have tried to take both in one command but is imposibile. – endrimi Dec 23 '19 at 15:46
ok but where the difference beetwen 2m and 2mn that you have used and how to show if both files are backup ? – endrimi Dec 23 '19 at 15:48
First is autorewind, second is not. You can rewind the tape and check with tar – Romeo Ninov Dec 23 '19 at 15:50
What is wrong? This is the same tape, but driver behave differently depend of how to use it!!! – Romeo Ninov Dec 23 '19 at 15:54
Right, use it and check the result – Romeo Ninov Dec 23 '19 at 15:55
No offense, but have you read some documentation about HP-UX? `mt -f /dev/rmt/2mn rewind;tar tvf /dev/rmt/2mn` – Romeo Ninov Dec 23 '19 at 15:57
i have used this but as i show you on the question this command doesn't show me all the files but only 1. – endrimi Dec 23 '19 at 16:03
@endrimi, did you test my solution? – Romeo Ninov Dec 27 '19 at 17:09

backup command on HP-UX fail

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