Re: DiskSuite RAID5 performace

From: <sybrandb_at_yahoo.com>
Date: 8 Dec 2003 00:33:52 -0800
Message-ID: <a1d154f4.0312080033.62093464_at_posting.google.com>


sucivi_at_mail.zte.com.cn (Malvin Su) wrote in message news:<a587c42d.0312071812.3e90f55a_at_posting.google.com>...
> We have a Fire880 box running Solaris2.8 and Oracle8.1.7.
> And Use the DiskSuite to Create the RAID5 device md9, and mount it as
> a file system.
> Now When to create tablespace on the file system, the performance is
> so lower, only 10% CPU is in use.
>
> What's wrong with the system, why the io or cpu does not work hard?
>
> Any help is appreciated, thanks!

RAID-5 has a write penalty.

Sybrand Bakker
Senior Oracle DBA Received on Mon Dec 08 2003 - 09:33:52 CET

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