Linux RAID subsystem development
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* 3ware 7500-8 on 32 & 64 bit PCi
@ 2003-10-14 12:47 Farkas Levente
  2003-10-14 12:52 ` Joshua Baker-LePain
  0 siblings, 1 reply; 2+ messages in thread
From: Farkas Levente @ 2003-10-14 12:47 UTC (permalink / raw)
  To: Linux, linux-raid

hi,
what is the performance difference between two 3ware 7500-8 PCI card on 
a 32 or a 64 bit PCI slot if used with 8 pieces of 120GB hard disk (and 
linux software raid5:-). I know there is not an exact measurment, but 
what is your estimate?
thanks in advance.
yours.

-- 
   Levente                               "Si vis pacem para bellum!"



^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: 3ware 7500-8 on 32 & 64 bit PCi
  2003-10-14 12:47 3ware 7500-8 on 32 & 64 bit PCi Farkas Levente
@ 2003-10-14 12:52 ` Joshua Baker-LePain
  0 siblings, 0 replies; 2+ messages in thread
From: Joshua Baker-LePain @ 2003-10-14 12:52 UTC (permalink / raw)
  To: Farkas Levente; +Cc: linux-raid

On Tue, 14 Oct 2003 at 2:47pm, Farkas Levente wrote

> what is the performance difference between two 3ware 7500-8 PCI card on 
> a 32 or a 64 bit PCI slot if used with 8 pieces of 120GB hard disk (and 
> linux software raid5:-). I know there is not an exact measurment, but 
> what is your estimate?

You will be limited by the PCI bandwidth on the 32bit bus (133 MB/s - 
whatever else you have on the bus).  I've benched a single board at 
~200MB/s reading using the hardware RAID 5.

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2003-10-14 12:47 3ware 7500-8 on 32 & 64 bit PCi Farkas Levente
2003-10-14 12:52 ` Joshua Baker-LePain

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