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

Re: Experience with HP Smart Array P400 and SATA drives?

From: "Gregory Williamson" <Gregory(dot)Williamson(at)digitalglobe(dot)com>
To: "Mario Weilguni" <mweilguni(at)sime(dot)com>,"Aidan Van Dyk" <aidan(at)highrise(dot)ca>
Cc: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>,"Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com>,<pgsql-performance(at)postgresql(dot)org>
Subject: Re: Experience with HP Smart Array P400 and SATA drives?
Date: 2008-12-10 15:21:30
Message-ID: 8B319E5A30FF4A48BE7EEAAF609DB233021F3831@COMAIL01.digitalglobe.com (view raw or flat)
Thread:
Lists: pgsql-performance
Me, I'd *never) allow RAID-5 for data I cared abut.

Among other references, see <http://www.miracleas.com/BAARF/RAID5_versus_RAID10.txt>

(sorry for top-posting -- challenged reader and no other content to add)

Greg Williamson
Senior DBA
DigitalGlobe

Confidentiality Notice: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information and must be protected in accordance with those provisions. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message.

(My corporate masters made me say this.)



-----Original Message-----
From: pgsql-performance-owner(at)postgresql(dot)org on behalf of Mario Weilguni
Sent: Wed 12/10/2008 4:29 AM
To: Aidan Van Dyk
Cc: Joshua D. Drake; Scott Marlowe; pgsql-performance(at)postgresql(dot)org
Subject: Re: [PERFORM] Experience with HP Smart Array P400 and SATA drives?
 
Aidan Van Dyk schrieb:
> * Joshua D. Drake <jd(at)commandprompt(dot)com> [081209 11:01]:
>  
>   
>> Yes the SmartArray series is quite common and actually know to perform
>> reasonably well, in RAID 10. You still appear to be trying RAID 5.
>>     
>
> *boggle* 
>
> Are people *still* using raid5?
>
> /me gives up!
>
>   

Why not? I know it's not performing as good as RAID-10, but it does not 
waste 50% diskspace. RAID-6 is no option, because the performance is 
even worse. And, on another system with RAID-5 + spare and SAS drives, 
the same controller is working very well.


In response to

pgsql-performance by date

Next:From: Aidan Van DykDate: 2008-12-10 15:52:08
Subject: Re: Experience with HP Smart Array P400 and SATA drives?
Previous:From: Mario WeilguniDate: 2008-12-10 14:30:20
Subject: Re: Experience with HP Smart Array P400 and SATA drives?

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group