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OS X Server redundant home directories

Posted on 2009-05-05
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We wish to make our Xserve a bit more redundant.  I understand we can replicate our open directory to another Xserve but what if we wish to introduce some redundancy with home directories?  Short of going with a SAN solution what would be a way to do this on the cheap?

I thought possibly just splitting the home directories between the two servers so if one of the servers went down at least have the home dirs are still up and then could copy the rest over from a backup.  Does anyone else have any suggestions on this?

Thanks!

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Question by:lighthousekeeper
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Expert Comment

by:nappy_d
ID: 24312704
Well, the first thing is that for redundancy, there is no such thing as "on the cheap" ;)

Now, for full redundancy, I would recommend that since you have a SAN, acquire a second xServe.

Once you have a second xServe, configure cluster services for OS X. Doing this, will provide you with redundancy beyond just user home directories.
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by:lighthousekeeper
ID: 24313914
OK--  We don't have a SAN.  NOT having a SAN, how else could we make a single Xserve redundant by introducing only an additional Xserve?  Is that possible?  What else may we need to add to our environment to achieve redundancy for the home dirs, etc.?

Thank you.
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nappy_d earned 2000 total points
ID: 24314057
You can't, for redundancy of data between two computers, you need shared storage.  If you were to think about it, of server A goes down, how does server B know where the data is stored especially if you store the data in local internal storage.

You don't need a SAN you could get a NAS.  Something like the drobo could do the job nicely for youy.

Also, if you have a spare workstation kicking around you could setup either openfiler or freenas for shared network storage.

freenas http://www.freenas.org

openfiler http://www.openfiler.com
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Author Closing Comment

by:lighthousekeeper
ID: 31577978
Thanks.
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