------- Block Device Specifies root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142/CONTENTS# fdisk -s /dev/sdb1 2930266328 root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142/CONTENTS# fdisk -s /dev/sdb 2930266580 root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142/CONTENTS# fdisk -l /dev/sdb Note: sector size is 4096 (not 512) Disk /dev/sdb: 3000.6 GB, 3000592977920 bytes 255 heads, 63 sectors/track, 45600 cylinders, total 732566645 sectors Units = sectors of 1 * 4096 = 4096 bytes Sector size (logical/physical): 4096 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0x0001c2fe Device Boot Start End Blocks Id System /dev/sdb1 63 732566644 2930266328 83 Linux -------- FileSystem specifies root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# mount | grep xfs /dev/sdb1 on /media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142 type xfs (rw,nosuid,nodev,uhelper=udisks2) root@youANDme:~# xfs_admin -lu /dev/sdb1 label = "" UUID = d4fc377b-54d3-4c1f-b05b-d2df34c62142 root@youANDme:~# xfs_info /dev/sdb1 meta-data=/dev/sdb1 isize=256 agcount=4, agsize=48923918 blks = sectsz=4096 attr=2 data = bsize=4096 blocks=195695670, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=8192, version=2 = sectsz=4096 sunit=1 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 root@youANDme:~# xfs_check /dev/sdb1 xfs_check: /dev/sdb1 contains a mounted and writable filesystem fatal error -- couldn't initialize XFS library root@youANDme:~# xfs_check /dev/sdb1 root@youANDme:~# xfs_repair /dev/sdb1 Phase 1 - find and verify superblock... Phase 2 - using internal log - zero log... xfs_repair: read failed: Invalid argument XFS: empty log check failed zero_log: cannot find log head/tail (xlog_find_tail=22), zeroing it anyway - scan filesystem freespace and inode maps... - found root inode chunk Phase 3 - for each AG... - scan and clear agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 2 - agno = 3 Phase 5 - rebuild AG headers and trees... - reset superblock... Phase 6 - check inode connectivity... - resetting contents of realtime bitmap and summary inodes - traversing filesystem ... - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify and correct link counts... done -------- Files specifies root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# tree -shug . ├── [root root 4.0K] CONTENTS │   ├── [root root 2.0K] 20130428102157.ckf │   ├── [root root 44] 20130428102157.enc │   ├── [root root 7.3K] 20130428102157.inf │   ├── [root root 92K] 20130428102157.mdb │   ├── [root root 202K] 20130428102157.mta │   ├── [root root 281M] 20130428102157.srf │   ├── [root root 2.0K] 20130428103327.ckf │   ├── [root root 44] 20130428103327.enc │   ├── [root root 7.3K] 20130428103327.inf │   ├── [root root 49K] 20130428103327.mdb │   ├── [root root 101K] 20130428103327.mta │   ├── [root root 985M] 20130428103327.srf │   ├── [root root 8] FavoriteInfo.dev │   └── [root root 136] NewBoard4Rpsp.inf ├── [root root 34] database │   ├── [root root 552K] Ace.dat │   └── [root root 256K] Ace.log └── [root root 16] PVRDBVersion.mgr 2 directories, 17 files root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file PVRDBVersion.mgr PVRDBVersion.mgr: ASCII text root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file database/Ace. Ace.dat Ace.log root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file database/Ace.dat database/Ace.dat: data root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.ckf CONTENTS/20130428103327.ckf: PDP-11 UNIX/RT ldp root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.enc CONTENTS/20130428103327.enc: VMS Alpha executable root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.inf CONTENTS/20130428103327.inf: data root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.mdb CONTENTS/20130428103327.mdb: data root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.mta CONTENTS/20130428103327.mta: XML document text root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# file CONTENTS/20130428103327.srf CONTENTS/20130428103327.srf: data ----------- Multimedia Specifies root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# mediainfo CONTENTS/20130428103327.srf | head -17 General ID : 101 (0x65) Complete name : CONTENTS/20130428103327.srf Format : MPEG-TS File size : 985 MiB Duration : 10mn 1s Overall bit rate : 13.7 Mbps Video ID : 191 (0xBF) Menu ID : 813 (0x32D) Format : AVC Format/Info : Advanced Video Codec Format profile : High@L4.0 Codec ID : 27 Encryption : Encrypted root@youANDme:/media/mcortinas/d4fc377b-54d3-4c1f-b05b-d2df34c62142# mediainfo CONTENTS/20130428102157.srf | head -15 General ID : 97 (0x61) Complete name : CONTENTS/20130428102157.srf Format : MPEG-TS File size : 281 MiB Duration : 10mn 0s Overall bit rate : 3 920 Kbps Video ID : 131 (0x83) Menu ID : 803 (0x323) Format : MPEG Video Codec ID : 2 Compression mode : Lossy Encryption : Encrypted ----------- DIFFERENCES BETWEEN XFS's SAMSUNG root@youANDme:~# xfs_info /dev/sdb1 meta-data=/dev/sdb1 isize=256 agcount=4, agsize=48923918 blks = sectsz=4096 attr=2 data = bsize=4096 blocks=195695670, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=8192, version=2 = sectsz=4096 sunit=1 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 UBUNTU xfs_info /dev/sdb1 meta-data=/dev/sdb1 isize=256 agcount=32, agsize=22892706 blks = sectsz=4096 attr=2 data = bsize=4096 blocks=732566582, imaxpct=5 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 log =internal bsize=4096 blocks=357698, version=2 = sectsz=4096 sunit=1 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0