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Re: Oracle and RAID

From: Benjamin Zhang <bzhang_at_ei.org>
Date: 1997/05/28
Message-ID: <338C8A6C.7B52@ei.org>#1/1

BBurtensha wrote:
>
> I've got an IBM RS/6000 J30 with a 7135 RAID unit configured as (4) 5-disk
> RAID
> with 5 LUNS. Running AIX 4.1.4 and Oracle 7.1 and 7.1.6. I'm considering
> reconfiguring the 7135 as (2) 10-disks LUNS using RAID 1 to try and
> improve performance. Any suggestions or comments would be appreciated.
>
> The only "performance" advice that the 7135 manual gives is setting the
> segment size equal to the typical I/O size. Since we using an 8kb Oracle
> block size should I set the segment size to (16) 512-byte blocks (the
> default is 512 512-byte blocks)?
>
> Thanks in advance,
> Barry


I think you should make it greater or equal to 8k * db_file_multiblock_read_count.

ben Received on Wed May 28 1997 - 00:00:00 CDT

Original text of this message

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