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- From: olson@anchor.esd.sgi.com (Dave Olson)
- Subject: Re: How can I do an automatic backup?
- Message-ID: <nsnmkdg@zuni.esd.sgi.com>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- References: <22828@oasys.dt.navy.mil>
- Date: Wed, 29 Jul 92 01:40:55 GMT
- Lines: 40
-
- In <22828@oasys.dt.navy.mil> paraska@oasys.dt.navy.mil (Pete Paraska) writes:
- | I have a 4-mm DAT tape drive on a 4D/30 PI. I wish to have the backup
- | program do a backup in the evening without any user intervention. I
- | figure I should put something in the crontab script, but don't know
- | how to go about doing this. Any help (example script) would be appreciated.
-
- Several have been posted to this group in the past couple of months,
- try the archives to see if you can find them.
-
- | I ran the backup script from the toolbox on a new out-of-the-box DAT
- | tape to see if things were working when I recently installed the tape
- | drive. When I executed the backup tool, the tape drive spun for
- | a while with the list of files in the backup window stalled. After
- | a while, the tape stopped spinning and a message box appeared saying
- | that tape 1 was full and to insert tape 2. Since only about 20K worth
- | of files had scrolled by in the backup window, I knew that tape 1 was
- | not full. So I just hit the "accept" button to overwrite tape
- | 1. I don't know if this backup was successful.
-
- I'll bet if you look in /usr/adm/SYSLOG (or in the console window), you
- will see some kind of SCSI error reported. Probably the drive isn't
- seated correctly, or you have some other SCSI cabling/termination problems,
- but without the errors, it is hard to tell.
-
- | What bothers me is that user intervention was needed to do the backup,
- | i.e., I had to fool the program into thinking I had inserted tape 2.
-
- Fool the program? What do you mean by that? If the tape really had
- reached the end, and you 'fooled' the program, you would be overwriting
- the data on the first tape with what should be on the second.
-
- | If this is the way the backup script is going to work with the DAT drive,
- | I don't think my plans for an automatic unattended backup will be fruitful.
-
- As long as what you want to backup actually fits on a single tape, and
- you have the hardware problems fixed, there should be no problem...
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-