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Re: Oracle Disk Architecture...

From: DA Morgan <damorgan_at_x.washington.edu>
Date: Wed, 23 Feb 2005 15:30:11 -0800
Message-ID: <1109201233.193479@yasure>


Goran wrote:

> "DA Morgan" <damorgan_at_x.washington.edu> wrote in message
> news:1109137676.461012_at_yasure...
>

>>HARI OM wrote:
>>
>>
>>>I am using Oracle 9.2.0.1.0 on IBM AIX 5.1L.
>>>This is our Disk Structure:
>>>
>>>VG = redo1_indx_vg --> 2 disks Mirrored. Logical Volumes (LV): /r1,
>>>/index
>>>Contains: Group 1 of Redo Logs and Index for all instances.
>>
>>Extending my comment above about AIX 5.1 also read Oracle notes
>>on using a Logical Volume Manager. One of the most efficient
>>ways to blow 40% of your CPU I can imagine. And on 5.1? A layer
>>of bad on top of ugly.

>
>
> $ oslevel -r
> 5100-05
> $ ps -ef | grep smon | grep -v grep | wc -l
> 6
> $ uptime
> 06:46PM up 212 days, 5:42, 2 users, load average: 2.47, 2.44, 2.56
> $ ps -ef | wc -l
> 733
>
>
> :-)
> There is actually nothing wrong with Oracle (8i and 9iR2) on AIX 5.1.
> We have some 80 other AIX machines (various versions) for various purposes.
> Of those ~80, about 20 are used for Oracle DBs.
> LVM is used on all of them :-)
>
> Regards...

I didn't say it wouldn't run ... I said 5.2 is preferred.

And lots of people run LVM's. Lots of people also would prefer to not lose ~40% of their CPU.

That you are doing something does not mean it is optimal or best practice. Heck lots of people run MS Windows too.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace 'x' with 'u' to respond)
Received on Wed Feb 23 2005 - 17:30:11 CST

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