log shipping question

What happens when you check the " Allow database to assume primary role"
option during log shipping setup. What happens if you dont check it ?
Also, does anyone have any links as far as recovery procedures for a log
shipping implementation used for disaster recovery..i.e. if Server A fails,
what are the exact steps to follow to recover the application onto Server B
which would also include changing the servername from Server B to Server A
...
Allow database to assume primary role - When this option is enabled, this secondary server becomes the primary server if there are any problems on the original primary server. If you select this option, you must provide a share where the transaction logs
are stored when the server assumes the role of a primary server (for example, (\\secondary_computername\sharename).
KBA http://support.microsoft.com/default...314515&sd=tech about complete FAQ sheet on Log shipping.
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Satya SKJ
Visit http://www.sql-server-performance.com for tips and articles on Performance topic.
"Hassan" wrote:

> What happens when you check the " Allow database to assume primary role"
> option during log shipping setup. What happens if you dont check it ?
> Also, does anyone have any links as far as recovery procedures for a log
> shipping implementation used for disaster recovery..i.e. if Server A fails,
> what are the exact steps to follow to recover the application onto Server B
> which would also include changing the servername from Server B to Server A
> ...
>
>