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Well, i didn't wanted to start a rant against IBM, and I'm referring
specifically to GSS. <br>
<br>
Since GSS its an appliance, we have to refer to GSS support for both
hardware and software issues. Hardware support in total crap. It
took 1 mounth of chasing and shouting to get a drawer replacement
that was causing some issues. Meanwhile 10 disks in that drawer got
faulty. Finally we got the drawer replace but the disks are still
faulty. Now its 3 days i'm triing to get them fixed or replaced (
its not clear if they disks are broken of they was just marked to be
replaced because of the drawer). Right now i dont have any answer
about how to put them online ( mmchcarrier don't work because it
recognize that the disk where not replaced)<br>
<br>
There are also few other cases ( gpfs related) open that are still
not answered. I have no experience with direct GPFS support, but if
i open a case to GSS for a GPFS problem, the cases seems never get
an answer.<br>
<br>
The only reason that GSS is working its because <u><b>I</b></u><b>
</b>installed it spending few months studying gpfs. So now I'm
wondering if its worth at all rely in future on the whole appliance
concept. <br>
<br>
I'm wondering if in future its better just purchase the hardware and
install GPFS by our own, or in alternatively even try Lustre.<br>
<br>
<br>
Now, skipping all this GSS rant, which have nothing to do with the
file system anyway and going back to my question: <br>
<br>
Could someone point the main differences between GPFS and Lustre?<br>
<br>
I found some documentation about Lustre and i'm going to have a
look, but oddly enough have not found any practical comparison
between them.<br>
<br>
<br>
<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 06/08/14 11:19, Jez Tucker (Chair)
wrote:<br>
</div>
<blockquote cite="mid:53E2012C.9040402@gpfsug.org" type="cite">"IBM
support is almost unexistent"
<br>
<br>
I don't find that at all.
<br>
Do you log directly via ESC or via your OEM/integrator or are you
only referring to GSS support rather than pure GPFS?
<br>
<br>
If you are having response issues, your IBM rep (or a few folks on
here) can accelerate issues for you.
<br>
<br>
Jez
<br>
<br>
<br>
On 06/08/14 10:57, Salvatore Di Nardo wrote:
<br>
<blockquote type="cite">Sorry for this little ot, but recetly i'm
looking to Lustre to understand how it is comparable to GPFS in
terms of performance, reliability and easy to use.
<br>
Could anyone share their experience ?
<br>
<br>
My company just recently got a first GPFS system , based on IBM
GSS, but while its good performance wise, there are few
unresolved problems and the IBM support is almost unexistent, so
I'm starting to wonder if its work to look somewhere else
eventual future purchases.
<br>
<br>
<br>
Salvatore
<br>
<br>
On 06/08/14 10:19, Frederik Ferner wrote:
<br>
<blockquote type="cite">On 05/08/14 18:55, Scott Fadden wrote:
<br>
<blockquote type="cite">Is anyone running GPFS and Lustre on
the same nodes. I have seen it
<br>
work, I have heard people are doing it, I am looking for
some confirmation.
<br>
</blockquote>
<br>
Most of our compute cluster nodes are clients for Lustre and
GPFS at the same time. Lustre 1.8.9-wc1 and GPFS 3.5.0.11.
Nothing shared on servers (GPFS NSD server or Lustre OSS/MDS
servers).
<br>
<br>
HTH,
<br>
Frederik
<br>
<br>
</blockquote>
<br>
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