Regarding taking backup on Red Hat Linux 8.0

Hi Experts,
The scheduled backup for last night didn't work and I want to take back up for last night. I would like to run the same script using  at command but I have one concern as what happens to the data which is accessed by some remote user while it is being backed up  as I want to make sure that it shouldn't get corrupted.
Thanks alot
mn210Asked:
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blklineCommented:
If the file is currently being written then it is conceivable that the backup will be corrupted, unless the file is locked by the user's program.  Your best bet is to ensure that the file system is quiesced prior to doing the backup.  If you're talking a database backup then typically the program used to make a DB backup (e.g.   mysqldump or pg_dump) will lock things appropriately so that a backup can be made without corruption.

That being said, a backup with 99.999% of the files cleanly saved will be more valuable than none at all, should you need any of those files!

Barry
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mn210Author Commented:
Thanks a lot for all info. provided.
Can you please tell one last quetsion :
I want to buy tape drive  for my i686 machine(old). We have 4mm DDS-120  4GB data tapes.Which are the good and reliable tape drive (EIDE/SCSI) in the markets today ?
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blklineCommented:
There are far too many considerations for me to give you a good answer.  Bottom line:  how much do you have to spend?  You'll need to do some research on that -- perhaps give someone like www.cdw.com a call and see what they suggest.
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