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Old 11-26-2006, 11:24 PM   #1
venki
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Registered: Sep 2006
Location: India
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how to take backup..


Hi all,

I am working in an organization as a system administrator, where there are 28 employees. daily i am taking back up in to cd's. i don't think this is the correct way.

i wrote the script for backup and cronjob for it!

the next day i am coming and writing cd's

we don't want tape backups we want only optical backup.

can any one help me! how actually we can take backup.

daily it is coming around 600MB..by taring it with bunzip.

plz help me..
 
Old 11-26-2006, 11:50 PM   #2
btmiller
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There's nothing wrong with using recordable CDs as backup devices. Have you separated your back-ups into full and incremental ones? That is you could make full back-ups monthly and then make weekly back-ups of only files that have changed that week and then daily back-ups containing only files that have changed within the last day. You can do this using find with the mtime argument combined with tar and there are a number of available scripts to help with this. I've used this system and it works well, but for my new large file servers at work I've switched over to dump to make disk based back-ups as I find it is slightly more efficient on large quantities of data.As your site grows, you might also want to consider tools like Backula and Amanda.

It good to think about this though. A sysadmin is only as good as his back-ups. I know they've saved me on occasion.
 
Old 11-28-2006, 07:39 AM   #3
muha
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Quote:
Originally Posted by btmiller
As your site grows, you might also want to consider tools like Backula and Amanda.
I think you mean: http://www.bacula.org/
 
Old 11-28-2006, 09:04 AM   #4
matthewg42
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Registered: Oct 2003
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Distribution: Kubuntu 12.10 (using awesome wm though)
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CDs work, but they're a big pain the backside (slow, lots of swapping discs, bad burns), and they're not as permanent as many people thing - the media degrades and is often un-readable after a year or three.

I don't know enough to suggest what alternative would fit your requirements / budget. Whatever you choose, regularly check that you can restore files! Make it a weekly, or monthly test.

More than once in my career I've encountered huge, elaborate and very expensive backup schemes which do all sorts of fancy stuff (using robotic tape changers and all sorts of funky tech), but ended up having a conversation like this:
Quote:
me: Hello Mr. friendly sysop. We found a file which was corrupted a few days ago, and we were hoping there is a backup from the 15th. Do you know if there is one?
sysop: sure, we should have incremementals for the last two weeks.
me: Oh great, this could really save us a lot of pain! Can you restore the file from the 15th please?
sysop: Ah.
me: What do you mean by "ah"?
sysop: Well, we have backups... it's just that our restore procedure doesn't work.
me: [sob]
I kid you not.
 
  


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