Re: Need feedback for Ceph User Survey 2019 [EXT]

Hi, Thanks for putting these out for review. I have perhaps written too much in response... :) I think, in general, many of the questions need an "Other" option - e.g. the "Why use Ceph" question In the general questionnaire, you ask about telemetry on "your" cluster, but people might e.g. have several clusters not all of which have telemetry available; similarly, I'd make the "why not" question allow >1 answer - it might be "Well, I run Luminous now, but I don't expect to run telemetry when we move to Nautilus because..." The clusters questionnaire is tricky - it's a lot to fill out if you want folk to do it for every one of their clusters; might you perhaps instead request people fill it out for 1 cluster (production / largest / ...)? It's not clear how I would represent multiple different clusters in the answers to this questionnaire, to be honest, unless they were all essentially the same hardware/software/layout/etc. And I hope that the UI allows e.g. someone who didn't tick that they ran CephFS not to be shown the CephFS questions later. I agree with the suggestion of just letting people type in a number for all the "number of.." questions; if you do that, do you need the "how many OSDs per node" question? "How many OSDs in you cluster?" is a typo (you meant "your") I think. The "number of hours" questions need clarification - do you mean per week? [and "Number of hours troubleshooting the ceph client configuration and software" is duplicated]. I'm guessing these things aren't evenly spread over time, either (e.g. I spend much more time on config/software around a major release bump) I suspect that the "how long to apply updates" question might need a "depends on my vendor" answer? It'd take something like a serious CVE for us to upgrade ourselves rather than waiting for Canonical to produce revised packages, for example, and that can take a while. The answers to the minor updates "why?" don't quite make sense, maybe they've been truncated (e.g. "Concerns about") "What Ceph Manager modules did you enable?" needs a "none" option? [ISTR survey UIs require you to tick a box on a compulsory question] The EC questions often look to be single-answer, but presumably people might run more than one EC setup in the same cluster (for different pools)? It might be worth being clearer about what storage devices you're asking about? (e.g. for OSD storage, for journal/block.db, for host OS, for MON store...) The RBD section should all be multi-answer (except "are you using snapshorts"), I think You're inconsistent as to whether the "snapshots" question wants a reason for either answer (RBD) or for only the No answer (RGW(?),CephFS). Client-side S3, I wonder if s3cmd and minio (Go) might also be worth asking about? Regards, Matthew -- The Wellcome Sanger Institute is operated by Genome Research Limited, a charity registered in England with number 1021457 and a company registered in England with number 2742969, whose registered office is 215 Euston Road, London, NW1 2BE.