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тАО01-30-2004 06:13 AM
тАО01-30-2004 06:13 AM
Thank You
Solved! Go to Solution.
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тАО01-30-2004 08:43 AM
тАО01-30-2004 08:43 AM
Re: System Backups
let me ask you a few questions.
1. what os release and what device are you using?
2. Do you have another machine, where you can rcp or use it's tape to backup to?
Michael
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тАО01-31-2004 06:12 AM
тАО01-31-2004 06:12 AM
Re: System Backups
Another possibility is to split the backup into pieces; this would require someone to change tapes. For example, back up / /usr /var on one tape, then /home /var on another tape.
HTH,
Mic
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тАО02-01-2004 08:05 PM
тАО02-01-2004 08:05 PM
Re: System Backups
So please share this information with us, maybe there are some hints within your software.
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тАО02-01-2004 10:20 PM
тАО02-01-2004 10:20 PM
Re: System Backups
Because:
1) It's included in OS - so you'll find it on your boot CD in case of ...
2) It's recommended by Digital
The vdump command has option -C - i.e. software compression, which is done by server CPU.
See man vdump.
This worked well for me.
I's typically better than hardware compression, used by streamer itself.
On the other hand, it will consume lots of CPU power and can slow down backup.
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тАО02-01-2004 11:39 PM
тАО02-01-2004 11:39 PM
Re: System Backups
Is the 4m tape drive just a single one, or you can insert multiple tapes in?
Use the /dev/nrmt0h and use the -C parameter, they will compress the data.
Try cleaning the drives of unwanted files, or just attend to the backup and split the mount points into 2 different tapes
Mohamed
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тАО02-02-2004 12:25 AM
тАО02-02-2004 12:25 AM
Re: System Backups
Thank You again for the quick responses. I appreciate the help!
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тАО02-02-2004 12:31 AM
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тАО02-02-2004 12:36 AM
тАО02-02-2004 12:36 AM
Re: System Backups
I am not a Tru64 guru, not even a UNIX guru! I assumed these roles when they canned the UNIX administrator because I have a little UNIX knowledge. I am at a loss with the command you mention. If you can clarify for me I'd be willing to give it a shot!
What I have proceeded to do is split the backups into two and then edit the cron job to run them at different times.
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тАО02-02-2004 12:43 AM
тАО02-02-2004 12:43 AM
Re: System Backups
The command mt used to manipulate the tape in a tape drive.
I don't know about your tape drive if it can accept these commands or not, but it is worth a try.
You can move the tape to begining of any save set, you can order the tape to dismount. The command mt offline dismount the tape in use and loads the second tape in the magazine.
This also depends of your tape drive. I did not use the 4mm tape drives before, but this command is very nice with the DLT drives.
check man page for the command mt by entering the command man mt
If everything is set correctly, you can split the backup into multiple tapes without attending to it.
let me know if you have any questions.