Re: Virtualization vs. sharing a server

From: "Rodger Donaldson" <rodgerd(at)diaspora(dot)gen(dot)nz>
To: "Greg Smith" <greg(at)2ndquadrant(dot)com>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: Virtualization vs. sharing a server
Date: 2010-03-30 21:08:23
Message-ID: 64633.203.144.40.146.1269983303.squirrel@israel.diaspora.gen.nz
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On Tue, March 30, 2010 06:09, Greg Smith wrote:
> Michael Gould wrote:
>>
>> I don't know why virtualization is considered a no-no...Since these
>> are all quad core with 32 gig running Windows 2003 64 bit, we can run
>> about 100 users concurrently on each application server before we
>> start to see a strain.
>>
>
> You answered your own question here. Ramiro is looking for suggestions
> for how to scale up to >500 connections at once, and it's not that
> likely virtualization can fill any useful role in that context.

That rather depends on your virtualisation layer. We haven't run large PG
databases on our zLinux/zVM machines, but we have Oracle DBs running
comparable connection numbers without any issues.

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