[gpfsug-discuss] does AFM support NFS via RDMA

Kristy Kallback-Rose kkr at lbl.gov
Tue Jul 11 23:07:49 BST 2017


Sounds good. Is someone willing to take on this talk? User-driven talks on real experiences are always welcome.

Cheers,
Kristy

> On Jul 11, 2017, at 7:46 AM, Bryan Banister <bbanister at jumptrading.com> wrote:
> 
> Sounds like a very interesting topic for an upcoming GPFS UG meeting… say SC’17?
> -B
>  
> From: gpfsug-discuss-bounces at spectrumscale.org <mailto:gpfsug-discuss-bounces at spectrumscale.org> [mailto:gpfsug-discuss-bounces at spectrumscale.org <mailto:gpfsug-discuss-bounces at spectrumscale.org>] On Behalf Of Andrew Beattie
> Sent: Tuesday, July 11, 2017 5:15 AM
> To: gpfsug-discuss at spectrumscale.org <mailto:gpfsug-discuss at spectrumscale.org>
> Cc: gpfsug-discuss at spectrumscale.org <mailto:gpfsug-discuss at spectrumscale.org>; jake.carroll at uq.edu.au <mailto:jake.carroll at uq.edu.au>
> Subject: Re: [gpfsug-discuss] does AFM support NFS via RDMA
>  
> Bilich,
>  
> Reach out to Jake Carrol at Uni of QLD
>  
> UQ have been playing with NFS over 10GB / 40GB and 100GB Ethernet
> and there is LOTS of tuning that you can do to improve how things work
>  
> Regards,
> Andrew Beattie
> Software Defined Storage  - IT Specialist
> Phone: 614-2133-7927
> E-mail: abeattie at au1.ibm.com <mailto:abeattie at au1.ibm.com>
>  
>  
> ----- Original message -----
> From: "Billich Heinrich Rainer (PSI)" <heiner.billich at psi.ch <mailto:heiner.billich at psi.ch>>
> Sent by: gpfsug-discuss-bounces at spectrumscale.org <mailto:gpfsug-discuss-bounces at spectrumscale.org>
> To: "gpfsug-discuss at spectrumscale.org <mailto:gpfsug-discuss at spectrumscale.org>" <gpfsug-discuss at spectrumscale.org <mailto:gpfsug-discuss at spectrumscale.org>>
> Cc:
> Subject: [gpfsug-discuss] does AFM support NFS via RDMA
> Date: Tue, Jul 11, 2017 7:36 PM
>   
> Hello,
> 
> We run AFM using NFS as transport between home and cache. Using IP-over-Infiniband we see a throughput between 1 and 2 GB/s. This is not bad but far from what a native IB link provides – 6GB/s . Does AFM’s nfs client on gateway nodes support NFS using RDMA? I would like to try.  Or should we try to tune nfs and the IP stack – I wonder if anybody got throughput above 2 GB/s using IPoIB and FDR between two nodes?
> 
> We can’t use a native gpfs multicluster mount – this links home and cache much too strong: If home fails cache will unmount the cache fileset – this is what I get from the manuals.
> 
> We run spectrum scale 4.2.2/4.2.3 on Redhat 7.
> 
> Thank you,
> 
> Heiner Billich
> 
> --
> Paul Scherrer Institut
> Heiner Billich
> WHGA 106
> CH 5232  Villigen
> 056 310 36 02
>  
> 
> 
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