Hi, Andreas, Thanks for your quick respone. > Why do you think you need to defragment? Do you notice performance loss, or > is it just because of the e2fsck number? Given that you have only 1225 files > and 50GB of space usage it is almost guaranteed that each file will not be > contiguous. Then How can I figure out whether the files are defragmented? Because the file system's read/write speed is greatly slow down ( about 8-10 times slower in extreme cases). Can you suggest a tool|package to report file systems' defragment percentage? I tried a beta version oodcmd tool which reports both block defragment percentage and inode defragment percentage, are those enough? or there are still more defragment characteristics? I'm a little hesitate to use the commercial oodcmd tool since it can only work when file systems are unmounted and idle.. sigh.. Thanks. --Guolin Cheng _______________________________________________ Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users