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List:       evms-devel
Subject:    [Evms-devel] RE: Resync speed.
From:       "Stian B. Barmen" <stian () barmen ! nu>
Date:       2004-10-18 23:24:45
Message-ID: 200410182325.i9INPXGW001117 () mail48 ! nsc ! no
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I have eight disks on two controllers (IDE). So then it is presumably my IDE
infrastructure that is my bottleneck. 

Thanks for the answer :)

-stian

-----Original Message-----
From: Mike Snitzer [mailto:msnitzer@lnxi.com] 
Sent: 18. oktober 2004 21:51
To: Stian B. Barmen
Cc: evms-devel@lists.sourceforge.net
Subject: Re: Resync speed.

How many disks do you have connected to your controller(s)?  The rebuild
throughput is per drive.  You could be limited by the ide controller
you're using.  Make sure your speed_limit_min does not exceed your
speed_limit_max; adjust speed_limit_max accordingly.

Also, adjusting speed_limit_min and speed_limit_max in /proc takes effect
nearly immediately while a resync is in progress; so no need to restart
the sync.

Mike


On Mon, Oct 18 2004 at 02:04,
Stian B. Barmen <stian@barmen.nu> wrote:

> 
>    Hello,  I have a large raid made up of 250 GB IDE disks. I had a power
>    failure  and  my raid got unsynced, now its resyncing but it is taking
>    for  ever and then some. Have tried to increase the speed_limit_min up
>    to  500000  (first 10000, then 1000000, and now 500000). This does not
>    make any difference.
>    My  raid  is resyncing with a speed of 5000K/sec and has a finish time
>    for  800 mins. Top reports the machine as 80% idle and loadavg is 1.21
>    1.16 1.01.
>    Why  am I not able to crank up the load and make my box resync faster?
>    Do  I  need  to  restart  the  sync perhaps before it respects the new
>    values in Proc??
>    Best regards
>    Stian B. Barmen



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