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Re: Is Raid 5 really that bad for Oracle?

From: Noons <wizofoz2k_at_yahoo.com.au.nospam>
Date: Wed, 04 Aug 2004 20:02:23 +1000
Message-ID: <4110b416$0$18672$afc38c87@news.optusnet.com.au>


Daniel Morgan apparently said,on my timestamp of 4/08/2004 12:22 AM:

>>
>> Wait until the IT damager decides to go to a NAS
>> because it's "better value"...

>
>
> The performance difference between SAN and NAS used to be of critical
> importance. I am not seeing enough difference these days to justify
> the huge difference in price. Is anyone having a different experience?
>

Of course there are exceptions. But IME, I've never seen a network-based I/O system that can provide the performance scalability of a channel I/O system. Don't forget that a NAS uses one or more network connections presumably in a single card.
Now I don't care how fast your Ethernet may be, it just by design cannot cope with a busy I/O demand. Single-task, single-user (the way "scalability is "measured" nowadays...) it may show good results. Wait for the first collision...

-- 
Cheers
Nuno Souto
wizofoz2k_at_yahoo.com.au.nospam
Received on Wed Aug 04 2004 - 05:02:23 CDT

Original text of this message

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