* Andreas Dilger <adilger@xxxxxxxxx> hat geschrieben: > You can see in the ext4 superblock the amount of data that has been > written to a filesystem over its lifetime: > > Note that this number isn't wholly accurate, but rather a guideline. Is is more like a completely bogus value at best: # LANG=C df -h / | grep root /dev/root 3.7T 3.6T 73G 99% / # grep [0-9] /proc/partitions 8 0 3907018584 sda # tune2fs -l /dev/sda | grep Lifetime Lifetime writes: 2503 GB 3.7 TB Disk/Partition, 3.6 TB space in use but only 2.4 TB writes. No, there are no 1.2 TB + x allocated but never written to clusters on that file system. And if /sys/fs/ext4/*/*_write_kbytes are as correct as the "Lifetime writes" value, than the correct answer to Jelle's question is: "There is no way currently to figure out the actual number of writes to a device". Regards, Bodo _______________________________________________ Ext3-users mailing list Ext3-users@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/ext3-users
