From: Joshua D. Drake <jd@commandprompt.com>
To: Joshua D. Drake <jd@commandprompt.com>
Cc: Stefan Kaltenbrunner <stefan@kaltenbrunner.cc>
Cc: Gregory Stark <stark@enterprisedb.com>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: Bernd Helmle <mailings@oopsware.de>
Cc: mfatticcioni@mbigroup.it
Cc: pgsql-performance@postgresql.org
Subject: Re: DRBD and Postgres: how to improve the perfomance?
Date: Sat, 08 Sep 2007 14:30:59 -0700
Message-ID: <46E31493.6050409@commandprompt.com> (raw)
In-Reply-To: <46E31339.6090909@commandprompt.com>
References: <2C070D1C3970467FF64F6B6A@imhotep.credativ.de>
<1189232904.4281.19.camel@ebony.site>
<87k5r1zd52.fsf@oxford.xeocode.com>
<46E2CAAF.50205@commandprompt.com>
<46E2CEF3.1030908@kaltenbrunner.cc>
<46E2D38A.6070607@commandprompt.com>
<46E2DB04.1080803@kaltenbrunner.cc>
<46E31339.6090909@commandprompt.com>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Joshua D. Drake wrote:
> Stefan Kaltenbrunner wrote:
>> Joshua D. Drake wrote:
>>> Stefan Kaltenbrunner wrote:
>
>>>> how is that making it different in practise ? - if both are on the same
>>>> UPS they are affectively on the same power bus ...
>>> Well I was thinking the bus that is in the wall. I would assume that
>>> people were smart enough to have independent UPS systems for each server.
>>>
>>> city power->line conditioning generator->panel->plug->UPS->server
>>>
>>> wash, rinse repeat.
>> the typical datacenter version of this is actually more like:
>
>> city power->UPS (with generator in parallel)->panel->plug
>
> Right, this is what we have at our colo except that I add a UPS where
> appropriate in between panel and plug.
Err plug and machine.
Joshua D. Drake
- ---------------------------(end of broadcast)---------------------------
TIP 1: if posting/reading through Usenet, please send an appropriate
subscribe-nomail command to majordomo@postgresql.org so that your
message can get through to the mailing list cleanly
- --
=== The PostgreSQL Company: Command Prompt, Inc. ===
Sales/Support: +1.503.667.4564 24x7/Emergency: +1.800.492.2240
PostgreSQL solutions since 1997 http://www.commandprompt.com/
UNIQUE NOT NULL
Donate to the PostgreSQL Project: http://www.postgresql.org/about/donate
PostgreSQL Replication: http://www.commandprompt.com/products/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
iD8DBQFG4xSTATb/zqfZUUQRAkgyAJwKLLz0Jywex/b3d6hk8L2gHsZaXQCfYCyH
6Z/mdtOvnXc4MixgxchrxNY=
=kv8v
-----END PGP SIGNATURE-----
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, stefan@kaltenbrunner.cc, stark@enterprisedb.com, simon@2ndquadrant.com, mailings@oopsware.de, mfatticcioni@mbigroup.it
Subject: Re: DRBD and Postgres: how to improve the perfomance?
In-Reply-To: <46E31493.6050409@commandprompt.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox