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Message-ID: <b1fec7231003290750n3326e86bs6521de808c7d504c@mail.gmail.com>
Subject: Virtualization vs. sharing a server
From: Ramiro Barreca <rbarreca@gmail.com>
To: pgsql-admin@postgresql.org
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At this moment we are considering a plan for upgrading many servers in our
datacenter.
As this is a very heterogeneous platform (from Oracle 10g, SQL Server 2008,
Firebird 2.1, Mysql 5, Postgre 8.4 up to Informix 5 and even COBOL apps) whe
are evaluating Virtualization or just sharing a server among PostgreSQL and
firebird or MySQL.
As Virtualiaztion is almost discarded after reading many articles that
locate this option in the "don'ts-list", we want to know your experience (if
any) about installing a PostgreSQL and a Firebird server in the same Linux
server.
Postgre is the DB that we are trying to migrate from Firebird, but this
process will demand several months to conclude.


   1. Is there a configuration option we need to consider to share this
   server?
   2. What is the recomended hardware for a PostgreSQL server that has to
   support between 500 and 1000 simultaneous user connections? Is there a
   whitepaper about this?

Thanks in advance.

-- 
Ramiro Barreca
rbarreca@gmail.com

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At this moment we are considering a plan for upgrading many servers in our =
datacenter.<div>As this is a very heterogeneous platform (from Oracle 10g, =
SQL Server 2008, Firebird 2.1, Mysql 5, Postgre 8.4 up to Informix 5 and ev=
en COBOL apps) whe are evaluating Virtualization or just sharing a server a=
mong PostgreSQL and firebird or MySQL.</div>
<div>As Virtualiaztion is almost discarded after reading many articles that=
 locate this option in the &quot;don&#39;ts-list&quot;, we want to know you=
r experience (if any) about installing a PostgreSQL and a Firebird server i=
n the same Linux server.</div>
<div>Postgre is the DB that we are trying to migrate from Firebird, but thi=
s process will demand several months to conclude.=A0</div><blockquote class=
=3D"webkit-indent-blockquote" style=3D"margin: 0 0 0 40px; border: none; pa=
dding: 0px;">
</blockquote><ol><li>Is there a configuration option we need to consider to=
 share this server?</li><li>What is the recomended hardware for a PostgreSQ=
L server that has to support between 500 and 1000 simultaneous user connect=
ions? Is there a whitepaper about this?</li>
</ol><div>Thanks in advance.</div><div><br>-- <br>Ramiro Barreca<br><a href=
=3D"mailto:rbarreca@gmail.com">rbarreca@gmail.com</a><br>
</div>

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