> The df command shows /dev/dasdb1 as having 6983168 1K blocks. But it also > shows 846212 used, and 5776348 available. 846212+5776348=6622560. > Where did 6983168-6622560=360608 blocks go to? I assume it is filesystem > overhead, but 360MB of filesystem overhead seems a little high???
The default behaviour is to reserve part of the disk for root. See man tune2fs. In terms of general overheads an ext3 file system has a static allocation for bitmaps, superblocks and inode blocks. That can make it look high when empty compared to a file system which dynamically allocates all of its metadata.
