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DiskSuite RAID5 performace

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!
Jul 19 '05 #1
1 2151
su****@mail.zte.com.cn (Malvin Su) wrote in message news:<a5**************************@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
Jul 19 '05 #2

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