On Fri, Oct 07, 2011 at 04:40:13PM +0800, Gim Leong Chin wrote: > Hi Dave, > > > > > > As it is, your problem is most likely fragmented free space > > (an > > aging problem). Inodes are allocated in chunks of 64, so > > require an > > -aligned- contiguous 16k extent for the default 256 byte > > inode size. > > If you have no aligned contiguous 16k extents free then > > inode > > allocation will fail. > > > > I understand from the mkfs.xfs man page "The XFS inode contains a fixed-size part and a variable-size part." > > 1) Do you mean inodes are allocated in units of 64 at one go? http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/AG_Inode_Management.html http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/Inode_Btrees.html > 2) What is the size of the fixed-size part? > 3) Are the fixed-size parts of inodes also allocated in units of 64 at one go? > 4) Where are the fixed-size parts located? On special extents just like the variable-size part? > 5) What about the locality of the variable and fixed size parts of the inodes? Can they be any distance apart? http://xfs.org/docs/xfsdocs-xml-dev/XFS_Filesystem_Structure//tmp/en-US/html/On-disk_Inode.html Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
