Hi Gido
I have updated the kernel to version 2.6.18-164.6.1 and changed to
a non-xen kernel.
I think tha the problem has something with the xen-version.
It seems that changing kernel type and version solved the problem.
Thanks a lot for yout help!!
Bene
[email protected] escreveu:
> Hi Benedito,
>
> thanks for the output.
>
> Cause of CentOS 5.2 XEN kernel I am not sure if this will improve the
> speed in every case,
> but it was helpful in the past. Please keep in mind to backup your
> system and / or test all
> steps in a test environment before.
>
> The steps:
>
> - performed NVRAM clear, which will reset all BIOS settings
>
> - updated BIOS from 2.5.0 to actual version 2.6.1
>
> - replaced megasas 00.00.03.15-RH1 with 03.21-06 or 04.01 version
> (this was possible via DKMS driver packet provided from DELL download
> page
> or take them from newer XEN kernel)
>
> - replaced bnx2 v1.6.9 with v.1.8.x or higher version
> (this was possible via DKMS driver packet provided from DELL download
> page
> or take them from newer XEN kernel or directly from Broadcom download
> page)
>
> For driver update you will need kernel-sources, gcc, build environment
> and so on ...
>
> - maybe it is necessary to update PERC6I firmware too
>
> After this performance was significant improved.
>
>
>> eight disks (RAID 5),
>> two logical disks (one is 300G for system,
>> other is 6T, storing a bunch of images).
>>
>
> Here could be a other RAID design be faster. Maybe it is possible to
> test this.
> Are you using LVM?
>
> Regards
>
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