Re: [gpfsug-discuss] Spectrum Scale Ganesha NFS multi threaded AFM?

Hi While I agree with what es already mention here and it is really spot on, I think Andi missed to reveal what is the latency between sites. Latency is as key if not more than ur pipe link speed to throughput results. -- Cheers > On 22. Feb 2020, at 3.08, Andrew Beattie wrote: > > Andi,

Re: [gpfsug-discuss] Spectrum Scale Ganesha NFS multi threaded AFM?

Andi, You may want to reach out to Jake Carrol at the University of Queensland, When UQ first started exploring with AFM, and global AFM transfers they did extensive testing around tuning for the NFS stack. >From memory they got to a point where they could pretty much saturate a 10GBit >link,

Re: [gpfsug-discuss] Spectrum Scale Ganesha NFS multi threaded AFM?

Hi, Thanks for answering! Yes possible, I’m not too much into NFS and AFM so I might have used the wrong term.. I looked at what you suggested (very interesting reading) and setup multiple cache gateways to our home nfs server with the new afmParallelMount feature. It was as I suspected, for

Re: [gpfsug-discuss] Upgrade GPFS 3.5 to Spectrum Scale 5.0.3

Fred, George,   An update from 3.5 to 4.2 is supported, but it requires the entire cluster to be shut down during the update. (since the update goes across two major releases)     Felipe   Felipe Knop k...@us.ibm.comGPFS Development and SecurityIBM SystemsIBM Building 0082455 South Rd,

Re: [gpfsug-discuss] Upgrade GPFS 3.5 to Spectrum Scale 5.0.3

Assuming you want to maintain your cluster and the file systems you have created you would need to upgrade to Spectrum Scale 4.2.3.x (4.1.x is no longer supported).  I think an upgrade from 3.5 to 4.2 is supported.  Once you have upgraded to 4.2.3.x (the latest PTF is 20, 4.2.3.20) you can then

Re: [gpfsug-discuss] Spectrum Scale Ganesha NFS multi threaded AFM?

Hi, I believe the right term is not multithreaded, but rather multistream. NFS will submit multiple requests in parallel, but without using large enough window you won't be able to get much of each stream. So, the first place to look is here:

[gpfsug-discuss] Upgrade GPFS 3.5 to Spectrum Scale 5.0.3

Hello, I've a question about upgrade of GPFS 3.5. We have an infrastructure with GSPF 3.5.0.33 and we need upgrade to Spectrum Scale 5.0.3. Can we upgrade from 3.5 to 4.1, 4.2 and 5.0.3 or can we do something additional like unistall GPFS 3.5 and install Spectrum Scale 5.0.3? Thank you George

Re: [gpfsug-discuss] Policy REGEX question

Thanks Peter, and no worries; great minds think alike. ;-) - Todd > On Feb 20, 2020, at 2:25 PM, Peter Serocka wrote: > > Sorry, I believe you had nailed it already -- I didn't > read carefully to the end. > >> On Feb 20, 2020, at 23:17, Peter Serocka > > wrote: >>

[gpfsug-discuss] Thousands of CLOSE_WAIT IPV6 connections on CES

Dear all, I was wondering if anybody recently encountered a similar issue (I found a related thread from 2018, but it was inconclusive). I just found that one of our production CES nodes have 28k CLOSE_WAIT tcp6 connections, I do not understand why... the second node in the same cluster does

[gpfsug-discuss] Spectrum Scale Ganesha NFS multi threaded AFM?

Hi all, i have searched the internet for a good time now with no answer to this.. So i hope someone can tell me if this is possible or not. We use NFS from our Cluster1 to a AFM enabled fileset on Cluster2. That is working as intended. But when AFM

Re: [gpfsug-discuss] GPFS 5 and supported rhel OS

On 21/02/2020 02:00, Valdis Klētnieks wrote: > On Thu, 20 Feb 2020 23:38:15 +, Jonathan Buzzard said: >> For us, it is a Scottish government mandate that all public funded >> bodies in Scotland are Cyber Essentials Plus compliant. That's 10 days >> from a critical vulnerability till your