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Old 08-26-2008, 05:54 AM
Default Re: Sharing RAID0 between LAMP servers?

On Mon, 25 Aug 2008 12:15:01 GMT, Pete
wrote:
>Where's the latency being seen? Between the user and the application or
>from the application to the storage?


Thanks guys for the input.

It was between the www servers and the MySQL + JPGs server. We asked
the hoster to add a filer, and performance is much better now, with
the filter being shared between two Apache servers

If demande keeps rising, I guess we'll have to investigate MySQL
clusters, so that the DB doesn't become the bottleneck again.

> If you want to directly connect several servers to the same storage
> you'll need a storage controller which allows multiple devices
> to access the storage and you'll need to install a cluster filesystem.
> That's a load of complexity that you could probably do without.


Yes, that's what I suspected :-/ So I guess the standard solution to
scaling databases is to add some kind of load balancer, and 2 or more
DB servers behind it.
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