DiskSuite RAID5 performace

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  • Malvin Su
    #1

    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!
    Tags: None
    • sybrandb@yahoo.com
      #2
      Re: DiskSuite RAID5 performace

      sucivi@mail.zte .com.cn (Malvin Su) wrote in message news:<a587c42d. 0312071812.3e90 f55a@posting.go ogle.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

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