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Fwd: RE: RAID or NOT to RAID?

From: Denmark Weatherburne <>
Date: Wed, 08 Aug 2001 10:54:06 -0700
Message-ID: <>

Hi DBA's,

I hope I'm not opening a can of worms, but I'd like your feedback on the issue of using RAID 5 on NT 4.0 with Oracle 8.0.5. I have worked with Solaris and RDBMS before switching to this job using the NT platform. So I'm having to adjust and revisit the issues that was of concern on the unix platform.
The NT and RAID configuration does not allow you to locate your datafiles and logs on seperate specific disks. Also I don't know if the use of raw devices on NT is possible if RAID 5 is enabled. I've read about the performance loss inherent with RAID 5 because of the writes to the parity disk.
I'd like to find out more about these issues and how you all are dealing with them on the NT 4.0 platform?

Thanks in advance for your time.


"Knowledge is power, but it is only useful if it is shared!"

>To: " Discussion" <>
>Subject: RE: RAID or NOT to RAID?
>Date: Tue, 7 Aug 2001 13:22:48 -0400
>Can you forward me the info. you received on this? I am wondering about
>issue as well - esp. as regards threads.
>-----Original Message-----
>From: Michael Porter []
>Sent: Tuesday, August 07, 2001 8:33 AM
>To: Discussion
>Subject: RAID or NOT to RAID?
>I don't want to start the proverbial war over RAID use in general but, I am
>seriously considering using RAID-10 (stripping + mirroring) for an Oracle
>11.x application (AIX 4.3.3 and at least db). IF I have several
>(more than 2) RAID10's and put redo on non raid volumes am I likely to get
>nearly as good performance with this as opposed to just straight mirroring
>OR individual volumes, possible stripped?
>Any points to other documentation or threads would be appreciated.
>Oracle documentation is here:
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Author: Denmark Weatherburne

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Received on Wed Aug 08 2001 - 12:54:06 CDT

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