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I have a very large content database & need to split it. Is it possible to split a content database within a site collection? or I need to create a new site collection?

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It is not possible to have multiple content databases service a single site collection. You would need to find a way to actually migrate the content from your one site collection to multiple site collections.

In situations where there is a single site collection that holds a bunch of sub-sites, such as in an Intranet scenario, I would look at moving the sub-site content to individual site collections for those departments.

In situations where you are doing large scale document management, I would look to use something like the Content Organizer to move the content to a series of back end site collections and content databases and then provide easy search and content roll up features to make the experience as easy and transparent as possible.

To handle the content moves required for either scenario you could either:

  • Move the content manually
  • Write custom code or powershell scripts to move the content from source to destination
  • Use a third party migration tool that can move the content from source to destination
  • Or look at using RBS to offload content to the filesystem and out of the content database. – Eric Alexander Nov 16 '11 at 17:17
  • Good call @PirateEric but RBS is not a perfect fix for all situations. It doesn't always improve performance, and may add substantial complexity. – Mike Oryszak Nov 16 '11 at 17:36
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    agreed, I assume this question is in response to his previous question about loading 100GB of pictures into a library. RBS would be a worthwhile consideration in that regard. – Eric Alexander Nov 16 '11 at 17:46
  • @MikeOryszak One Word "WOW!".Thx – neo269 Nov 17 '11 at 6:44
  • The 200 Gb limit still applies with RBS. RBS can be a good solution for cheaper storage, but don't count on it to make your collaboration content DBs any bigger. – Jorge Carvalho Nov 22 '11 at 21:58
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You could not split the site collection into multiple content databases.

You can only move your site collection to a new content DB, or export sub sites and make them a new site collection.

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Try this links:

http://technet.microsoft.com/en-us/library/cc825327(office.12).aspx

http://technet.microsoft.com/en-us/library/cc825326(office.12).aspx

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