Comments below
Regards
HJR
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"Dino Hsu" <dino1_at_ms1.hinet.net> wrote in message
news:8peqt3$cgl3d$1_at_ID-41926.news.cis.dfn.de...
> Dear All,
>
> The document mentions one database can have multiple instances (parallel
> server), but I have no experience of this setting, I wonder:
> 1.Why does one database need multiple instances at the same time?
So that if one Instance goes the way of all flesh, the other Instance(s) are
still able to grant Users continued access to the database (it's a
redundancy thing).
> 2.Will it make the implementaion very complicated?
Well, more complicated than simple single Instance designs, for sure. More
expensive, too, since it rather implies you have multiple bits of hardware
running the thing (ie, different Instances ought to be on different boxes).
> 3.Is parallel server specific to Unix and doesn't work for Windows NT/2K?
No, it's available for all O/Ses (as far as I know, anyway. NT definitely
isn't a problem).
> 4.Can you show me an implementation example, if it is useful?
This is where I bow out. Sorry!
HJR
>
> Thanks in advance.
> Dino
>
>
>
Received on Sun Sep 10 2000 - 00:08:27 CDT
