what_happened_to_my_space
This is an old revision of the document!
What happened to my space?
Got a pile of Nagios warnings about running out of space on a MySQL server at work, simplest to expand the space;
# Status beforehand df -h # Filesystem Size Used Avail Use% Mounted on # devtmpfs 7.8G 0 7.8G 0% /dev # tmpfs 7.8G 0 7.8G 0% /dev/shm # tmpfs 7.8G 793M 7.0G 11% /run # tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup # /dev/mapper/almalinux-root 62G 47G 16G 76% / <<< Warning about free space at 25% available # /dev/sda1 1014M 258M 757M 26% /boot # /dev/mapper/almalinux-home 30G 246M 30G 1% /home <<< Plenty of space here! lsblk -fo name,fstype,mountpoint,size # NAME FSTYPE MOUNTPOINT SIZE # sda 100G # ├─sda1 xfs /boot 1G # └─sda2 LVM2_member 99G # ├─almalinux-root xfs / 61.2G # ├─almalinux-swap swap [SWAP] 7.9G # └─almalinux-home xfs /home 29.9G # sr0 1024M cd /tmp tar -czvf /tmp/HomeBackup.tgz /home/* umount /home lvreduce -L 10GB /dev/almalinux/home # -L is final size mkfs.xfs -f /dev/almalinux/home mount /home/ cd /home/ tar -xzvf /tmp/HomeBackup.tgz lvextend -l +100%FREE /dev/almalinux/root # -l is change in size xfs_growfs /dev/almalinux/root # Status afterward lsblk -fo name,fstype,mountpoint,size # NAME FSTYPE MOUNTPOINT SIZE # sda 100G # ├─sda1 xfs /boot 1G # └─sda2 LVM2_member 99G # ├─almalinux-root xfs / 81.1G # ├─almalinux-swap swap [SWAP] 7.9G # └─almalinux-home xfs /home 10G # sr0 1024M df -h # Filesystem Size Used Avail Use% Mounted on # devtmpfs 7.8G 0 7.8G 0% /dev # tmpfs 7.8G 0 7.8G 0% /dev/shm # tmpfs 7.8G 793M 7.0G 11% /run # tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup # /dev/mapper/almalinux-root 82G 47G 35G 58% / <<< No warnings now for a while! # /dev/sda1 1014M 258M 757M 26% /boot # /dev/mapper/almalinux-home 10G 105M 9.9G 2% /home
what_happened_to_my_space.1687875858.txt.gz · Last modified: by steve