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Mirrored Linux servers

Posted on 2001-06-30
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Last Modified: 2010-03-18
Is it possible to `Mirror' Linux boxes similar to Novell SFT. I like the idea of having the same data on 2 separate machines. This allows one to go down and the system to stay up. It also allows taking one offline, making changes, testing, then when brought back online they are resynched.
OR is there another way to do some of this?
Thanks In Advance for your help.
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Question by:emery_k
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Expert Comment

by:NHBoehm
ID: 6241493
I do not know Novell SFT, but it sounds as if you only want portions of the data synced?
If so, I would do it by having a NFS mount which both systems can access and tar the tree I want synced to that NFS mount. On the other end I would have a Script periodically check for files in that dir and then untar them.

+----------+     +----------+
| System 1 |     | System 2 |
|          |     |          |
| mount ---+-----+--->      |
|  <-------+-----+- mount   |
+----------+     +----------+

Or: Building a slightly more complex scenario:
Use on third box and mount the data from there to the other two systems (maybe even read-only?). So you have one single point, where the data can be changed...


Hope this helps...
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jools earned 50 total points
ID: 6244546
It sounds like you want clustering.

Check out TurboLinux http://www.turbolinux.com. I wouldn't go for NFS mounts, could be a performance nightmare.




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by:emery_k
ID: 6340831
Thanks for comments.
I have some feel for clustering as an option. I was wondering if there were other options. will award points to close this out
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