[Lustre-discuss] mds-survey on Lustre-1.8
Christopher J. Walker
C.J.Walker at qmul.ac.uk
Tue Nov 13 15:59:31 PST 2012
On 13/11/12 18:49, Richard Henwood wrote:
> On Tue, Nov 13, 2012 at 12:33 PM, Christopher J. Walker
> <C.J.Walker at qmul.ac.uk> wrote:
>> In the Lustre 2.1 manual,
has a link titled Lustre Manual 2.1 - though in a row titled 2.x
>> mds-survey is mentioned, and google finds the
>> source at:
> Can you provide a link to the manual text? The manual may need
> clarification on this point (see below.)
>> It doesn't seem to work on Lustre 1.8. Should it?
> No, mds-survey arrived with Lustre 2.2:
I was hoping (obviously incorrectly) that whilst it arrived in 2.2, it
would work with 1.8.
>> What I'm actually trying to do is migrate an MDS to new hardware - and
>> I'd like to perform some basic tests - partly to see if using LVM has a
>> significant performance impact.
> mds-survey appeals to me because you don't need any OSTs. I don't know
> if a 'OST-free' performance setup is possible for your 1.8 testing -
> others may know differently?
That's a clear advantage, and being a standard Lustre tool give some
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