Look at this resource, you might find more useful information. http://community.office365.com/en-us/f/172/t/266070.aspx

3)

If the database is not open, then I think the files could be damaged. see this support article from microsoft.

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If this does not help, then only have the...

2)

You can copy the .mdf and .ldf files to a different server and just Attach them.

https://msdn.microsoft.com/en-us/library/ms190209.aspx

You will lose any server-wide logins created at the instance level but you will retain...

1)

You can attach the database files to another instance if you have the mdf' and ldfs ( even with mdf you will be able to attach )

System database master...