Thanks Lauz and Simon.
Next question and I presume the answer is "yes": if you specify a node explicitly that already has a certain config applied through a nodeclass, the value that has been set specific to that node should override the nodeclass setting. Correct? Richard ________________________________ From: [email protected] <[email protected]> on behalf of [email protected] <[email protected]> Sent: 27 January 2017 17:17 To: gpfsug main discussion list Subject: Re: [gpfsug-discuss] ?spam? Nodeclasses question Richard, As Simon notes in 3.5 they were expanded and where a pain; however this has since been tidied up and now works as it "should". So any further node added to a group will inherit the relevant parts of the config. i.e. (I've snipped the boring bits out) mmlsnodeclass Node Class Name Members --------------------- ----------------------------------------------------------- site2 s2gpfs1.site2,s2gpfs2.site2 mmchconfig pagepool=2G -N site2 mmshutdown -a mmstartup -a mmdsh -N nsdnodes "mmdiag --config | grep page" s2gpfs3.site2: pagepool 1073741824 s2gpfs3.site2: pagepoolMaxPhysMemPct 75 s2gpfs2.site2: ! pagepool 2147483648 s2gpfs2.site2: pagepoolMaxPhysMemPct 75 s2gpfs1.site2: ! pagepool 2147483648 s2gpfs1.site2: pagepoolMaxPhysMemPct 75 mmchnodeclass site2 add -N s2gpfs3.site2 mmshutdown -N s2gpfs3.site2 mmstartup -N s2gpfs3.site2 mmdsh -N nsdnodes "mmdiag --config | grep page" s2gpfs2.site2: ! pagepool 2147483648 s2gpfs2.site2: pagepoolMaxPhysMemPct 75 s2gpfs1.site2: ! pagepool 2147483648 s2gpfs1.site2: pagepoolMaxPhysMemPct 75 s2gpfs3.site2: ! pagepool 2147483648 s2gpfs3.site2: pagepoolMaxPhysMemPct 75 -- Lauz On 2017-01-27 12:43, Simon Thompson (Research Computing - IT Services) wrote: > I think this depends on you FS min version. > > We had some issues where ours was still set to 3.5 I think even though > we have 4.x clients. The nodeclasses in mmlsconfig were expanded to > individual nodes. But adding a node to a node class would apply the > config to the node, though I'd expect you to have to stop/restart GPFS > on the node and not expect it to work like "mmchconfig -I" > > Simon > > From: <[email protected]> on behalf of "Sobey, > Richard A" <[email protected]> > Reply-To: "[email protected]" > <[email protected]> > Date: Friday, 27 January 2017 at 11:12 > To: "[email protected]" > <[email protected]> > Subject: ?spam? [gpfsug-discuss] Nodeclasses question > > All, > > Can it be clarified whether specifying "-N ces" (for example, I > have a custom nodeclass called ces containing CES nodes of course) > will then apply changes to future nodes that join the same nodeclass? > > For example, "mmchconfig maxFilesToCache=100000 -N ces" will > give existing nodes that new config. I then add a 5th node to the > nodeclass. Will it inherit the cache value or will I need to set it > again? > > Thanks > > Richard > _______________________________________________ > gpfsug-discuss mailing list > gpfsug-discuss at spectrumscale.org > http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
_______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
