[gpfsug-discuss] tscCmdPortRange question

[Felipe Knop]

Olaf,

Correct.

mmchconfig -i   is accepted for tscCmdPortRange   . The change should take
place immediately, upon invocation of the next command.

  Felipe

----
Felipe Knop                                     knop at us.ibm.com
GPFS Development and Security
IBM Systems
IBM Building 008
2455 South Rd, Poughkeepsie, NY 12601
(845) 433-9314  T/L 293-9314





From:	"Olaf Weiser" <olaf.weiser at de.ibm.com>
To:	gpfsug main discussion list <gpfsug-discuss at spectrumscale.org>
Date:	03/06/2018 02:47 PM
Subject:	Re: [gpfsug-discuss] tscCmdPortRange question
Sent by:	gpfsug-discuss-bounces at spectrumscale.org



this parameter is just for administrative commands.. "where" to send the
output of a command...
and for those admin ports .. so called ephemeral ports... it depends , how
much admin commands ( = sessions  = sockets)  you want to run in parallel

in my experience.. 10 ports is more than enough
we use those in a range from 50000-50010



to be clear ..
demon - to - demon .. communication always uses 1191


cheers





From:        "Simon Thompson (IT Research Support)"
<S.J.Thompson at bham.ac.uk>
To:        "gpfsug-discuss at spectrumscale.org"
<gpfsug-discuss at spectrumscale.org>
Date:        03/06/2018 06:55 PM
Subject:        [gpfsug-discuss] tscCmdPortRange question
Sent by:        gpfsug-discuss-bounces at spectrumscale.org



We are looking at setting a value for tscCmdPortRange so that we can apply
firewalls to a small number of GPFS nodes in one of our clusters.

The docs don’t give an indication on the number of ports that are required
to be in the range. Could anyone make a suggestion on this?

It doesn’t appear as a parameter for “mmchconfig -i”, so I assume that it
requires the nodes to be restarted, however I’m not clear if we could do a
rolling restart on this?

Thanks

Simon_______________________________________________
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