On Tue, Nov 20, 2012 at 10:34:29AM -0600, Eric Sandeen wrote: > In the course of some other investigations, I found that > calc_default_ag_geometry() doesn't go into "multidisk" mode > unless stripe geometry is *detected* (i.e. by the blkid routines). > > Specifying a geometry on the cmdline is *not* sufficient, because > we test (ft.dsunit | ft.dswidth) which are not set by the cmdline > options. > > If we move the AG calculations to after we have set dsunit & dswdith, > then we'll pick up either cmdline-specified or blkid-detected > geometry, and go into "multidisk" mode for AG size/count > calculations in both cases. > > So now for a ~5T fs, for example, we'd make several more > AGs: > > # truncate --size=5t fsfile > # mkfs.xfs -N -d su=128k,sw=8 fsfile | grep agcount > meta-data=fsfile isize=256 agcount=5, agsize=268435424 blks > # mkfs/mkfs.xfs -N -d su=128k,sw=8 fsfile | grep agcount > meta-data=fsfile isize=256 agcount=32, agsize=41943008 blks > > Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx> V3 of patch 1 and patch 2 have been committed to repos on oss.sgi.com _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
