[gpfsug-discuss] GPFS 4.2.3-9 and RHEL 7.5

[Tomer Perry]

Hi,

:-) I explicitly used the term "same environment".

The simple answer would be NO, but:
While the code will only enforce not configuring CES and CNFS on the same 
cluster - it wouldn't know to do that between clusters - so I don't 
believe anything will prevent you from configuring it.
That said, there might be implications on recovery that might lead to data 
corruption ( imagine two systems that don't know about the other locks for 
the reclaim process).


Regards,

Tomer Perry
Scalable I/O Development (Spectrum Scale)
email: tomp at il.ibm.com
1 Azrieli Center, Tel Aviv 67021, Israel
Global Tel:    +1 720 3422758
Israel Tel:      +972 3 9188625
Mobile:         +972 52 2554625




From:   david_johnson at brown.edu
To:     gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:   13/06/2018 13:13
Subject:        Re: [gpfsug-discuss] GPFS 4.2.3-9 and RHEL 7.5
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



Could you expand on what is meant by ?same environment??  Can I export the 
same fs in one cluster from cnfs nodes (ie NSD cluster with no root 
squash) and also export the same fs in another cluster (client cluster 
with root squash) using Ganesha?

  -- ddj
Dave Johnson

On Jun 13, 2018, at 5:48 AM, Tomer Perry <TOMP at il.ibm.com> wrote:

knfs is supported  - with or without the cNFS feature ( cNFS will add HA 
to NFS on top of GPFS - 
https://www.ibm.com/support/knowledgecenter/en/STXKQY_5.0.1/com.ibm.spectrum.scale.v5r01.doc/bl1adv_cnfs.htm
).

knfs and cNFS can't coexist with CES in the same environment.


Regards,

Tomer Perry
Scalable I/O Development (Spectrum Scale)
email: tomp at il.ibm.com
1 Azrieli Center, Tel Aviv 67021, Israel
Global Tel:    +1 720 3422758
Israel Tel:      +972 3 9188625
Mobile:         +972 52 2554625




From:        Jonathan Buzzard <jonathan.buzzard at strath.ac.uk>
To:        gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:        13/06/2018 12:38
Subject:        Re: [gpfsug-discuss] GPFS 4.2.3-9 and RHEL 7.5
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



On Wed, 2018-06-13 at 09:33 +0000, Sobey, Richard A wrote:
> 4.2.3.9 is supported on RHEL 7.5, the FAQ has not been updated yet
> however.
> 

Then we are down to kernel NFS not been supported then?

JAB.

-- 
Jonathan A. Buzzard                         Tel: +44141-5483420
HPC System Administrator, ARCHIE-WeSt.
University of Strathclyde, John Anderson Building, Glasgow. G4 0NG


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