some of these documents might help you:
http://docs.splunk.com/Documentation/Splunk/latest/Indexer/Moveanindex
http://docs.splunk.com/Documentation/Splunk/6.2.1/Installation/MigrateaSplunkinstance
http://docs.splunk.com/Documentation/Splunk/6.2.1/Admin/StartSplunk#Stop_Splunk_Enterprise
From each of these, you can use the navigation bar off to the left to find more of what you need. The documentation can be very helpful, and you can always suggest feedback on the bottom of the page you are on if you don't understand something or you think something is wrong or you want to tell the docs team they're awesome! They're extremely responsive and helpful.
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