Hi Kostas,
can you expand the etc on the tuning? It looks interesting.
thanks
cheers
alessandra
On Wed, 27 Jul 2005, Kostas Georgiou wrote:
> On Wed, Jul 27, 2005 at 03:31:38PM +0100, Alessandra Forti wrote:
>
>> Hi Jiri,
>>
>> I'm not running 2.6 on production boxes because my dcache nodes are also
>> worker nodes and I can't upgrade. Perhaps Mona and Kostas have more
>> information as I believe IC pools are kernel 2.6.
>
> We are running RHEL4 (x86_64) in the pool nodes (and most of our other
> file servers) and so far i haven't seen any problems with the 2.6
> kernel. IO performance isn't great with the default vm settings but with
> a couple of changes (vm.dirty_ratio etc) performance is quite good and
> you get all the nice stuff that is missing from 2.4 (selinux, >2TB
> volumes, nfs4 (with krb5), etc). We had far more problems with the 2.4
> kernels and RHEL3 actually.....
>
>
> Kostas
>
--
********************************************
* Dr Alessandra Forti *
* Technical Coordinator - NorthGrid Tier2 *
* http://www.hep.man.ac.uk/u/aforti *
********************************************
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