Re: Raid-5 freezes with large writes... Continues after a more /proc/mdstat???

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On Friday June 18, alwin.bakkenes@xxxxxxxxx wrote:
> Hej, 
> 
> I am using Suse 9.1 and have build (finally) my Raid-5 volume using the
> raidtools. 

Can you tell me what kernel you are running?
Ideally try to reproducing it on a kernel.org kernel, but if that
isn't possible, I at least need to know what kernel.org kernel it is
closest to.

NeilBrown

> 
> When I write large amounts of data to the array (i.e. 50 GB) in a cp or mv
> operation, it always stops in the middle of the copy. It waits. There are no
> kernel messages, no errors, it just waits. 
> 
> The strange part is that after I do a "more /proc/mdstat" my cp/mv operation
> continues. 
> 
> Performance is descent with approx. 20-30MB/s writes and 80MB/s reads. 
> 
> You can see the rest of my setup in a previous post:
> http://marc.theaimsgroup.com/?l=linux-raid&m=108738559332187&w=2
> 
> Has anybody seen this before? 
> 
> Alwin
> 
> P.S. I am using two Maxtor 200GB IDE disks and two identical disks but with
> SATA interface. My box is a Dell 400SC and I run Suse 9.1 with the default
> kernel.
> 
> 
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