Re: What Bonnie's benchmark should we expect for RAID 0+1

What is "Bonnie's benchmark" ? Is it some standard test suite ? Hemant
At 08:09 AM 19-12-02 -0800, you wrote:
>Hello,
>
>We have a Compaq AlphaServer 8400 with 8 GB RAM, 8 dual 625mhz CPUs and
>two HSZ70 Array Controllers. Each Controller is connected to 24 36GB
>10K rpm Ultr SCSI disk divers. In the system, some volums are
>configured as RAID 1, and the others are configured as RAID 0+1
>with 3 striping. However, we can't see significant performance
>improvement in RAID 0+1 volums except random seek. The following are
>the Bonnie's benchmarks for two kinds of volums:
>
>For RAID 1:
>
> -------Sequential Output-------- ---Sequential Input--
>--Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
>--Seeks---
>Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec
>%CPU
>RAID1 1024 9029 55.1 9108 14.3 8956 15.6 15700 89.4 115531 99.9 2535.2
>65.9
>
>For RAID 0+1:
>
> -------Sequential Output-------- ---Sequential Input--
>--Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
>--Seeks---
>Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec
>%CPU
>RAID01 1024 9780 58.8 9872 17.1 14067 25.7 15990 89.7 56037 59.5 5374.3
>169.9
>
>Is there something wrong? What Bonnie's benchmark should we expect
>for RAID 0+1?
>
>Thanks,
>Tom
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>Author: Xie, Tom
> INET: TXie_at_taylorpub.com
>
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Hemant K Chitale
My web site page is : http://hkchital.tripod.com

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Author: Hemant K Chitale
  INET: hkchital_at_singnet.com.sg

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