I’m guessing that every Linux admin saw this alarming message: “No space left on device”. First thing you are doing is check disk usage of course:
# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg-lv_root 18G 13G 3.4G 80% /
What is going on? There is a lot of free space! Continue Reading
DU command doesn’t take into account hidden files and directories. For example if you want check disk usage of all files and directories in current directory you can use the following command:
$ du -sm *
Unfortunately this command doesn’t show hidden files and directories. Continue Reading
Rsync is a very powerful backup tool. It can significantly speed up backup process and minimize amount of data transferred during synchronization. In most cases rsync is used to make incremental backups, but it also has another interesting option which gives you ability to keeping old versions of files on backup server. Mentioned option is ‘–backup’ or simply ‘-b’. Continue Reading
Last time I’ve experienced uncommon problem with one of my hard drives. Due a power failure of my NAS server a hard drive could’t spin up.