Hi all, I thought I'd reach out to your guys as trawling various forums and docs has not really got me any further. It may also be a possible bug. Just rebooted my box today after 200 days uptime and thought I'd request a volume scan and it found errors! I've never had a power outage etc so am keen to know what could have caused this file system corruption? Anyu ideas??? I'm running 4.2.21 on a ReadyNAS Pro6, but ultimately it is a Linux (Debian) 2.6.37.6. based system underneath. ***** File system check forced at Fri Apr 26 20:08:38 WEST 2013 ***** fsck 1.41.14 (22-Dec-2010) e2fsck 1.42.3 (14-May-2012) Pass 1: Checking inodes, blocks, and sizes Inode 4195619, i_blocks is 3135728, should be 3135904. Fix? yes Running additional passes to resolve blocks claimed by more than one inode... Pass 1B: Rescanning for multiply-claimed blocks Multiply-claimed block(s) in inode 4195619: 167904376 167904377 167904378 167904379 167904380 167904381 167904382 167904383 167904384 167904385 167904386 167949296 167949297 167949298 167949299 167949300 167949301 167949302 167949303 167949304 167949305 167949306 Pass 1C: Scanning directories for inodes with multiply-claimed blocks Pass 1D: Reconciling multiply-claimed blocks (There are 1 inodes containing multiply-claimed blocks.) File /PREMIER/Premier Automation Purchase OrdersApp V18.5.mdb (inode #4195619, mod time Fri Apr 26 20:07:42 2013) has 22 multiply-claimed block(s), shared with 0 file(s): Multiply-claimed blocks already reassigned or cloned. Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/c/c: ***** FILE SYSTEM WAS MODIFIED ***** /dev/c/c: 615898/30212096 files (13.6% non-contiguous), 62353456/483393536 blocks I'm curious to know what this is all about, shared with 0 files!!!!: File /PREMIER/Premier Automation Purchase OrdersApp V18.5.mdb (inode #4195619, mod time Fri Apr 26 20:07:42 2013) has 22 multiply-claimed block(s), shared with 0 file(s): Multiply-claimed blocks already reassigned or cloned. Every follow on boot with FSCK yields the following: ***** File system check forced at Fri Apr 26 20:21:42 WEST 2013 ***** fsck 1.41.14 (22-Dec-2010) e2fsck 1.42.3 (14-May-2012) Pass 1: Checking inodes, blocks, and sizes Running additional passes to resolve blocks claimed by more than one inode... Pass 1B: Rescanning for multiply-claimed blocks Multiply-claimed block(s) in inode 4195619: 167904376 167904377 167904378 167904379 167904380 167904381 167904382 167904383 167904384 167904385 167904386 167949296 167949297 167949298 167949299 167949300 167949301 167949302 167949303 167949304 167949305 167949306 Pass 1C: Scanning directories for inodes with multiply-claimed blocks Pass 1D: Reconciling multiply-claimed blocks (There are 1 inodes containing multiply-claimed blocks.) File /PREMIER/Premier Automation Purchase OrdersApp V18.5.mdb (inode #4195619, mod time Fri Apr 26 20:07:42 2013) has 22 multiply-claimed block(s), shared with 0 file(s): Multiply-claimed blocks already reassigned or cloned. Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/c/c: 615898/30212096 files (13.6% non-contiguous), 62353456/483393536 blocks Still same thing with multiply claimed blocks but to say they are shared with 0 files makes no sense! And... Surely this should be corrected by FSCK? Smart logs are all good.... It was one of the first things I checked. Thanks... -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html