RE: Filesystem vs. Raw IO

  • From: "Loughmiller, Greg" <greg.loughmiller@xxxxxxxxxxxx>
  • To: "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 28 May 2004 09:15:43 -0400

Used them in a lab. works ok; plenty of speed. The good ones allow you to
write to memory cache; and "ack" the oracle process;  and then takes the
cache to disk.. What little testing we did; I just put the online redo logs
and archive redo's on them..


-----Original Message-----
From: Mladen Gogala [mailto:mladen@xxxxxxxxxxxxxxx] 
Sent: Friday, May 28, 2004 9:00 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: Re: Filesystem vs. Raw IO

On 05/28/2004 08:31:26 AM, Nuno Souto wrote:
> Writing to memory is no comparison to writing to
> disk.  Not yet, anyway.

How about solid state disks? There was an article about US government buying

1TB solid state disk. I imagine that the speed of writing to that baby is
not an order of magnitude larger then the speed of writing to memory.
Mladen Gogala
Oracle DBA

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