Hi, I'm trying to understand how xfs is storing informations, but I guess that my documentation "XFS Filesystem Structure 2nd Edition Revision 2" is quite outdated :( I made an XFS filesystem, then made 60 files in /. # xfs_db -f /root/small xfs_db> inode 128 xfs_db> addr current byte offset 32768, length 256 buffer block 64 (fsbno 8), 8 bbs inode 128, dir inode 128, type inode xfs_db> p core.magic = 0x494e core.mode = 040755 core.version = 2 core.format = 2 (extents) [...] next_unlinked = null u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,12,1,0] I made a small script in python which retrieve all theases information from disk, except the "12" (location of the X2DB block = 12*4096). From the manuel, and my understanding, this information, 12, should be found just next the di_unlinked. (page 43 on the manuel). But from an hex editor, from addr 32768, I got this : 49 4E 41 ED 02 02 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 01 56 37 5D 71 2D 26 3D 0B 56 37 5D 6C 02 78 F1 EC 56 37 5D 6C 02 78 F1 EC 00 00 00 00 00 00 10 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 00 FF FF FF FF 00 00 00 00 00 00 00 00 00 00 00 00 01 80 00 01 00 00 00 00 00 00 00 00 00 00 00 00 First, 49 4E (IN) that's the begining of the inode core (96 bytes). All informations are here, and match the output of xfs_db. But after next_unlinked (FF FF FF FF here), and until next IN, I can't find any 12 :( Where is it ? Lot's of thanks to anyone that could give me help on this subject. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
