Re: Is Raid 5 really that bad for Oracle?

From: Holger Baer <holger.baer_at_science-computing.de>
Date: Mon, 02 Aug 2004 12:38:08 +0200
Message-ID: <cel5ii$a6i$1@news.BelWue.DE>

Niall Litchfield wrote:

> "joe bayer" <joebayerii(no-spam)@hotmail.com> wrote in message news:<qDPOc.1753$%J6.1677_at_trndny07>...
>

>>I am quoting from Jonathan Lewis's book, Practical Oracle 8i, page 206
>>
>>Raid 5 has an undeservedly bad reputation as far as Oracle database systems
>>are concerned. ....
>>However, for most small systems, it is almost necessary and perfectly
>>acceptable; and for many large systems it is totally adequate.

> 
> 
> I'm not sure that I buy that it is almost necessary - it would be
> common in 'small' systems.

Although it's quite some time since I've read that chapter, I've always understood that the necessity arises out of the fact that for really small systems you just can't get enough spindles into your box to satisfy anything else but RAID 5 if you want some redundancy.

Cheers,

Holger Received on Mon Aug 02 2004 - 05:38:08 CDT