Hi
the block for writes increases the IOPS on those cards that might be already at the limit so I would not discard taht lowering the IOPS for writes has a positive effect on reads or not but it is a smoking gun that needs to be addressed. My experience of ignoring those is not a positive one.
Hi Giovanni, how do the waiters look on your clients when reading?
Mit freundlichen Grüßen / Kind regards
Dr. Uwe Falke
IT Specialist
Global Technology Services / Project Services Delivery / High Performance
Computing
+49 175 575 2877 Mobile
Rathausstr. 7, 09111 Chemnitz, Germany
While that point (block size should be an integer multiple of the RAID
stripe width) is a good one, its violation would explain slow writes, but
Giovanni talks of slow reads ...
Mit freundlichen Grüßen / Kind regards
Dr. Uwe Falke
IT Specialist
Global Technology Services / Project Services
mmchconfig nistCompliance=off on the newer system should work.
Joe Mervini
Sandia National Laboratories
High Performance Computing
505.844.6770
jame...@sandia.gov
On 6/11/20, 9:10 AM, "gpfsug-discuss-boun...@spectrumscale.org on behalf of
David Johnson" wrote:
I'm trying to
I'm trying to access an old GPFS filesystem from a new cluster. It is good up
to the point of adding the SSL keys
of the old cluster on the new one. I get from mmremotecluster add command:
File _id_rsa.pub does not contain a nist sp 800-131a compliance key
Is there any way to override
256K
Giovanni
On 11/06/20 10:01, Luis Bolinches wrote:
On that RAID 6 what is the logical RAID block size? 128K, 256K, other?
--
Ystävällisin terveisin / Kind regards / Saludos cordiales / Salutations
/ Salutacions
Luis Bolinches
Consultant IT Specialist
IBM Spectrum Scale development
ESS &
On Thu, Jun 11, 2020 at 9:53 AM Giovanni Bracco
wrote:
>
> >
> > You could potentially still do SRP from QDR nodes, and via NSD for your
> > omnipath nodes. Going via NSD seems like a bit pointless indirection.
>
> not really: both clusters, the 400 OPA nodes and the 300 QDR nodes share
> the
On 11/06/2020 08:53, Giovanni Bracco wrote:
[SNIP]
not really: both clusters, the 400 OPA nodes and the 300 QDR nodes share
the same data lake in Spectrum Scale/GPFS so the NSD servers support the
flexibility of the setup.
NSD servers make use of a IB SAN fabric (Mellanox FDR switch) where
On that RAID 6 what is the logical RAID block size? 128K, 256K, other?
--Ystävällisin terveisin / Kind regards / Saludos cordiales / Salutations / SalutacionsLuis Bolinches
Consultant IT Specialist
IBM Spectrum Scale development
ESS & client adoption teams
Mobile Phone: +358503112585
Comments and updates in the text:
On 05/06/20 19:02, Jan-Frode Myklebust wrote:
fre. 5. jun. 2020 kl. 15:53 skrev Giovanni Bracco
mailto:giovanni.bra...@enea.it>>:
answer in the text
On 05/06/20 14:58, Jan-Frode Myklebust wrote:
>
> Could maybe be interesting to drop the
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