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тАО04-01-2009 07:03 AM
тАО04-01-2009 07:03 AM
Raw Device backup on mounted filesystem
I would like to know if there is a way to do an image backup of a mounted filesystem, knowing that it will be inconsistent and then use another backup utility to read this image and do the correction of the corrupted files?
HP UX 11.11
Data Protector 5.5
Regards,
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тАО04-01-2009 07:07 AM
тАО04-01-2009 07:07 AM
Re: Raw Device backup on mounted filesystem
In general, the application using the raw disk area has a utility for backing up the data to a regular file system or tape.
For example, Oracle ships with rman, DP has a module for backing up oracle databases. These utilities can do what you want.
To provide more specific help, you will need to tell us what application is using the raw disk area.
SEP
Owner of ISN Corporation
http://isnamerica.com
http://hpuxconsulting.com
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тАО04-01-2009 07:11 AM
тАО04-01-2009 07:11 AM
Re: Raw Device backup on mounted filesystem
If it is an Oracle database, you will always need to start with a consistent cold (cp, tar, fbackup, DP, etc...) or hot (RMAN) backup to restore your database. Then, if you are in archivelog mode and have those archivelogs in the appropriate fs directory (parameter log_archive_dest) you can recover to a specific date/time.
Eric
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тАО04-01-2009 07:11 AM
тАО04-01-2009 07:11 AM
Re: Raw Device backup on mounted filesystem
Not clear about your requirement. If it is a mounted filesystem, you can use tar to take the image bakcup.
#tar cvf /tmp/imagefile.tar /
Ganesh.
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тАО04-01-2009 07:45 AM
тАО04-01-2009 07:45 AM
Re: Raw Device backup on mounted filesystem
in fact, it's a huge filesystem which is in the production (Not Oracle files), I want to take a hot image (mounted) of it and find a way to repair the inconsistency. I hope you've got my point.
thanx
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тАО04-03-2009 01:07 PM
тАО04-03-2009 01:07 PM
Re: Raw Device backup on mounted filesystem
You can consider to mount a snapshot and
backup the snapshot instead of the real filesystem.
Volker