Re: [gpfsug-discuss] Dual server NSDs - change of hostname

2018-04-05 Thread Uwe Falke
Hi John, some last thoughts mmdelnode/mmaddnode is an easy way to move non-NSD servers, but doing so for NSD servers requires to run mmchnsd, and that again requires a downtime for the file system the NSDs are part of (in Scale 4 at least, what we are talking right here). That could only be ci

Re: [gpfsug-discuss] Dual server NSDs - change of hostname

2018-04-05 Thread John Hearns
Thankyou everyone for replies on this issue. Very helpful. We have a test setup with three nodes, although no multi-pathed disks. So I can try out removing and replacing disks servers. I agree with Simon that bringing up a second NIC is probably inviting Murphy in to play merry hell… The option

Re: [gpfsug-discuss] Dual server NSDs - change of hostname

2018-04-05 Thread Simon Thompson (IT Research Support)
Yeah that was my thoughts too given Bob said you can update the server list for an NSD device in 5.0. I also thought that bringing up a second nic and changing the name etc could bring a whole world or danger from having split routing and rp_filter (been there, had the weirdness, RDMA traffic co

Re: [gpfsug-discuss] Dual server NSDs - change of hostname

2018-04-05 Thread Marc A Kaplan
To my mind this is simpler: IF you can mmdelnode without too much suffering, do that. Then reconfigure the host name and whatever else you'd like to do. Then mmaddnode... ___ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfs

Re: [gpfsug-discuss] UK April meeting

2018-04-05 Thread Simon Thompson (IT Research Support)
It’s now just two weeks until the UK meeting and we are down to our last few places available. If you were planning on attending, please register now! Simon From: on behalf of "ch...@spectrumscale.org" Reply-To: "gpfsug-discuss@spectrumscale.org" Date: Thursday, 1 March 2018 at 11:26 To: "gp

Re: [gpfsug-discuss] RFE Process ... Burning Issues

2018-04-05 Thread Simon Thompson (Spectrum Scale User Group Chair)
Just a reminder that if you want to submit for the pilot RFE process, submissions must be in by end of next week. Judging by the responses so far, apparently the product is perfect 😊 Simon From: on behalf of "ch...@spectrumscale.org" Reply-To: "gpfsug-discuss@spectrumscale.org" Dat