From: Ad 

Geo. wrote:
> "Adam" <""4thwormcastfromthemolehill\"{at}the
field.near the bridge"> wrote
> in message news:45cfac7d{at}w3.nls.net...
>
>> Also depends on being able to move services selectively & basically
>> using routing.
>>
>> E.g. you have server it has a
>>
>> DB & An appserver on it serving lots of users so you need to be able to
>> smoothly & easily moving the appserver over to a new machine & then
>> point it back at the old db & then reroute users to the new appserver
>> (which is still using the old db).
>>
>> Then transfer the db & rebuild the db on the second machine
>>
>> Then switch the app server to point to the new address for it's data
>> &........now you're good to go 
>
> Why do all that, if you can do the transfer & rebuild part then just
> transfer and rebuild to a second machine then backup that machine and
> leave the users alone.
>
> Geo.

Depends on if you want continuity. Obviously with a reasonably small db or
a db which can online dumps then you can just dump the db to the second
machine along with the app server & then crank it up & redirect.


Adam

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