On Tue, Oct 2, 2018 at 10:30 AM, Emmanuel Florac <eflorac@xxxxxxxxxxxxxx> wrote: > Le Tue, 2 Oct 2018 10:05:42 -0500 > Eric Sandeen <sandeen@xxxxxxxxxxx> écrivait: > >> But if Stratis starts at 1TB it's not terrible; I'd need to look and >> see how many AGs get created (probably 4?) and if so, 250G AGs are >> not /too/ granular. If it's creating a lot more smaller AGs, that >> could become an issue if it gets grown to a very large size. IOWs >> the growfs concern is mostly about the resulting AG size & AG count. >> > > You're right, I've looked through the source code and no option ever > gets passed to mkfs.xfs nor xfs_growfs related to FS size. That means > that it creates the FS with the default 4 AGs for a start. Stratis volumes are always built on dm-thin so I'd expect default mkfs.xfs to create ~33 AG's, which is what I get when running mkfs.xfs on LVM thin volumes. -- Chris Murphy
