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Datapimp23
Asked: 2010-09-08 00:14:06 +0800 CST

Data migration over WAN

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I have 50 GB on servers in switzerland, that need to be copied over our wan connection. After the data is migrated we'll switch the users to our newer server based computing solution.

The only problem is that it's live data. So I was wondering if there is a way to copy the 40 GB before the migration, and just before we go live make a differential copy.

How would you guys approach this?

Is there a free way to accomplish this?

The data I'm talking about are user documents and company data.

Thanks

migration datacenter

3 Answers

  1. Best Answer

    This is heavily dependent on the type of data (and to a lesser degree, the OS) you use, but rsync is a good start for copying files in general. For databases and similar file types, you might need to use another option, but again, this would be dependent on the type of database.

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  2. Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway. (Tanenbaum, Andrew S)

    Yes - I'd go with restoring a backup at the new site, then unison/rsync to keep the data inline if its just files.

    But this approach needs some work if we're talking about a database.

    C.

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  3. if your using linux you could also consider using drdb however performance might be degraded over your wan link.

    http://www.drbd.org/

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