[gpfsug-discuss] Spectrum Scale with NVMe

John Hearns john.hearns at asml.com
Fri Nov 10 13:25:40 GMT 2017


Chad,
Thankyou for the reply.
Indded I had that issue - I only noticed because I looked at the utisation of the NSDs and a set of them were not being filled with data...
A set which were coincidentally all connected to the same server  (me whistles innocently....)

-----Original Message-----
From: gpfsug-discuss-bounces at spectrumscale.org [mailto:gpfsug-discuss-bounces at spectrumscale.org] On Behalf Of Chad Kerner
Sent: Tuesday, November 07, 2017 2:05 PM
To: gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Subject: Re: [gpfsug-discuss] Spectrum Scale with NVMe

Hey John,

     Once you get /var/mmfs/etc/nsddevices set up, it is all straight forward.  We have seen times on reboot where the devices were not ready before gpfs started and the file system started with those disks in an offline state.  But, that was just a timing issue with the startup.

Chad
--
Chad Kerner, Senior Storage Engineer
Storage Enabling Technologies
National Center for Supercomputing Applications University of Illinois, Urbana-Champaign

On 11/7/17, John Hearns <john.hearns at asml.com> wrote:
> I am looking for anyone with experience of using Spectrum Scale with
> nvme devices.
>
> I could use an offline brain dump...
>
>
> The specific issue I have is with the nsd device discovery and the naming.
>
> Before anyone replies, I am gettign excellent support from IBM and
> have been directed to the correct documentation.
>
> I am just looking for any wrinkles or tips that anyone has.
>
>
> Thanks
>
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--
--
Chad Kerner, Senior Storage Engineer
Storage Enabling Technologies
National Center for Supercomputing Applications University of Illinois, Urbana-Champaign _______________________________________________
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