Hi I would really look into QoS instead.
-- Cheers > On 17 Jun 2019, at 19.33, Alex Chekholko <[email protected]> wrote: > > Hi Chris, > > I think the next thing to double-check is when the maxMBpS change takes > effect. You may need to restart the nsds. Otherwise I think your plan is > sound. > > Regards, > Alex > > >> On Mon, Jun 17, 2019 at 9:24 AM Christopher Black <[email protected]> >> wrote: >> Our network team sometimes needs to take down sections of our network for >> maintenance. Our systems have dual paths thru pairs of switches, but often >> the maintenance will take down one of the two paths leaving all our nsd >> servers with half bandwidth. >> >> Some of our systems are transmitting at a higher rate than can be handled by >> half network (2x40Gb hosts with tx of 50Gb+). >> >> What can we do to gracefully handle network maintenance reducing bandwidth >> in half? >> >> Should we set maxMBpS for affected nodes to a lower value? (default on our >> ess appears to be maxMBpS = 30000, would I reduce this to ~4000 for 32Gbps?) >> >> Any other ideas or comments? >> >> Our hope is that metadata operations are not affected much and users just >> see jobs and processes read or write at a slower rate. >> >> >> >> Best, >> >> Chris >> >> This message is for the recipient’s use only, and may contain confidential, >> privileged or protected information. Any unauthorized use or dissemination >> of this communication is prohibited. If you received this message in error, >> please immediately notify the sender and destroy all copies of this message. >> The recipient should check this email and any attachments for the presence >> of viruses, as we accept no liability for any damage caused by any virus >> transmitted by this email. >> _______________________________________________ >> gpfsug-discuss mailing list >> gpfsug-discuss at spectrumscale.org >> http://gpfsug.org/mailman/listinfo/gpfsug-discuss Ellei edellä ole toisin mainittu: / Unless stated otherwise above: Oy IBM Finland Ab PL 265, 00101 Helsinki, Finland Business ID, Y-tunnus: 0195876-3 Registered in Finland
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