On Wed, 2013-07-31 at 13:38 -0500, Eric Sandeen wrote: > On 7/31/13 12:08 PM, Chris Murphy wrote: > > > > On Jul 31, 2013, at 8:32 AM, Mike Snitzer <snitzer@xxxxxxxxxx> > > wrote: > > > >> But on the desktop the fedora developers need to provide sane > >> policy/defaults. > > > > Right. And the concern I have (other than a blatant bug), is the F20 > > feature for the installer to create thinp LVs; and to do that the > > installer needs to know what sane default parameters are. I think > > perhaps determining those defaults is non-obvious because of my > > experience in this bug: > > https://bugzilla.redhat.com/show_bug.cgi?id=984236 > > > > If I'm going to use thinP mostly for snapshots, then that suggests a > > smaller chunk size at thin pool creation time; whereas if I have no > > need for snapshots but a greater need for provisioning then a larger > > chunk size is better. And asking usage context in the installer, I > > think is a problem. > > Quite some time ago I had asked whether we could get the allocation-tracking > snapshot niceties from dm-thinp, without actually needing it to be thin. > > i.e. if you only want the efficient snapshots, a way to fully-provision > a "thinp" device. I'm still not sure if this is possible...? > > I guess I'm pretty nervous about offering actual thin provisioned > storage to "average" Fedora users. I'm having nightmares about the "bug" > reports already, just based on the likelihood of most users misunderstanding > the feature and it's requirements & expected behavior... There was some discussion in #anaconda yesterday about making it available only via custom partitioning rather than the Installation Options dropdown, IIRC. That has the effect of denoting it as an 'advanced feature' and requiring more expertise on the part of the user to set it up. -- Adam Williamson Fedora QA Community Monkey IRC: adamw | Twitter: AdamW_Fedora | identi.ca: adamwfedora http://www.happyassassin.net -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
