[prev in list] [next in list] [prev in thread] [next in thread] 

List:       pgsql-performance
Subject:    Re: [PERFORM] DRBD and Postgres: how to improve the perfomance?
From:       "Joshua D. Drake" <jd () commandprompt ! com>
Date:       2007-09-08 21:30:59
Message-ID: 46E31493.6050409 () commandprompt ! com
[Download RAW message or body]

-----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-----

---------------------------(end of broadcast)---------------------------
TIP 3: Have you checked our extensive FAQ?

               http://www.postgresql.org/docs/faq
[prev in list] [next in list] [prev in thread] [next in thread]