Skip site navigation (1) Skip section navigation (2)

Re: Some Performance Advice Needed

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: Jeff <threshar(at)torgo(dot)978(dot)org>
Cc: Alex <alex(at)meerkatsoft(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Some Performance Advice Needed
Date: 2004-12-23 21:27:12
Message-ID: (view raw or whole thread)
Lists: pgsql-performance
Jeff wrote:

> On Dec 23, 2004, at 9:27 AM, Alex wrote:
>> Running hdparm reported
>> A) 920mb/s   (SCSI 10k)
>> B) 270mb/s   (SCSI 10k)
>> C) 1750mb/s  (IDE  7.2k)
> IDE disks lie about write completion (This can be disabled on some 
> drives) whereas SCSI drives wait for the data to actually be written 
> before they report success.  It is quite
> easy to corrupt a PG (Or most any db really) on an IDE drive.  Check 
> the archives for more info.

Do we have any real info on this? Specifically which drives? Is SATA the 
same way? What about SATA-II?
I am not saying it isn't true (I know it is) but this is a blanket 
statement that may or may not be
true with newer tech.


Joshua D. Drake

> -- 
> Jeff Trout <jeff(at)jefftrout(dot)com>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster

Command Prompt, Inc., home of Mammoth PostgreSQL - S/ODBC and S/JDBC
Postgresql support, programming shared hosting and dedicated hosting.
+1-503-667-4564 - jd(at)commandprompt(dot)com -
PostgreSQL Replicator -- production quality replication for PostgreSQL

Attachment: jd.vcf
Description: text/x-vcard (285 bytes)

In response to


pgsql-performance by date

Next:From: William YuDate: 2004-12-23 21:45:57
Subject: Re: Some Performance Advice Needed
Previous:From: William YuDate: 2004-12-23 20:49:09
Subject: Re: Some Performance Advice Needed

Privacy Policy | About PostgreSQL
Copyright © 1996-2015 The PostgreSQL Global Development Group