Re: Poor RAID5 performance on new SMP system

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On Oct 17, 2004, at 21:11, Marc wrote:

Hi,
I recently upgraded my file server to a dual AMD 2800+ on a Tyan Tiger MPX
motherboard. The previous server was using a PIII 700 on an Intel 440BX
motherboard. I basically just took the IDE drives and their controllers
across to the new machine. The strange thing is that the RAID-5 performance
is worse than before! Have a look at the stats below:



[..]

         State : dirty, no-errors
 Active Devices : 4
Working Devices : 4
 Failed Devices : 1
  Spare Devices : 0


Unless I am missing something, a disk is missing and the RAID runs in degraded (=slower) mode.


Gerd

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