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/dev/mapper/centos-root is 100% full

tylrs
My /dev/mapper/centos-root is mapped to / and is 100% full. This is causing issues with services crashing and the server becoming unstable. However, I am not sure why this keeps happening. /home is far from full, where all user data is stored. I clear out /tmp with tmpwatch, I removed old logs in /var/log and any unnecessary files.
root@web508 [/]# df Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/centos-root 52403200 52192296 210904 100% / devtmpfs 3480112 0 3480112 0% /dev tmpfs 3489464 0 3489464 0% /dev/shm tmpfs 3489464 17004 3472460 1% /run tmpfs 3489464 0 3489464 0% /sys/fs/cgroup /dev/mapper/centos-home 830664412 127473172 703191240 16% /home /dev/sda1 508588 164776 343812 33% /boot
and
root@web508 [/]# du -sh /* 0 /backup 0 /bin 136M /boot 0 /dev 28M /etc 170G /home 4.0K /ips.tar.gz 0 /lib 0 /lib64 0 /media 0 /mnt 4.0K /razor-agent.log 591M /root 17M /run 0 /sbin 0 /scripts 0 /srv 0 /sys 0 /tsm
Any way to resolve this?

Comments

6 comments

Date Votes
  • 24x7server
    Hello, Your home and boot is mounted on other partition. I think your /var and /usr directory are using all the disk space. Can you please let me know following command out so that I can assist you on this.
    df -h cd / du -sch * --exclude=home
    0
  • tylrs
    Thank you for your help.
    root@web508 [~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root 50G 50G 20K 100% / devtmpfs 3.4G 0 3.4G 0% /dev tmpfs 3.4G 0 3.4G 0% /dev/shm tmpfs 3.4G 58M 3.3G 2% /run tmpfs 3.4G 0 3.4G 0% /sys/fs/cgroup /dev/mapper/centos-home 793G 122G 671G 16% /home /dev/sda1 497M 161M 336M 33% /boot
    and
    root@web508 [/]# du -sch * --exclude=home 0 backup 0 bin 136M boot 0 dev 28M etc 4.0K ips.tar.gz 0 lib 0 lib64 0 media 0 mnt 46M opt 0 proc 4.0K razor-agent.log 588M root 58M run 0 sbin 0 scripts 0 srv 0 sys 2.4M tmp 0 tsm 11G usr 39G var 50G total
    0
  • cPanelMichael
    Hello :) Most of the disk space usage stems from your /usr and /var directories. The following document explains how you can check the disk space to narrow down what's taking up most of the space within these directories:
    0
  • 24x7server
    Hello, If you are unable to make free space on your server and your mysql directory is using high disk space then you can move your mysql directory to /home partition with the following post How to move MySQL data directory
    0
  • tylrs
    Hello :) Most of the disk space usage stems from your /usr and /var directories. The following document explains how you can check the disk space to narrow down what's taking up most of the space within these directories: How to Manage your Hard Drive Space - cPanel Knowledge Base - cPanel Documentation Thank you.

    Thank you! This definitely helped. Got rid of some data that was no longer needed.
    Hello, If you are unable to make free space on your server and your mysql directory is using high disk space then you can move your mysql directory to /home partition with the following post How to move MySQL data directory

    I will do this. Since MySQL is used so much by hosting customers, it makes sense that its on the largest partition. Thanks for this!
    0
  • 24x7server
    Hello, Yes, MySQL is using huge disk space on the shared hosting server. Also you can use separate SSD drive for your mysql databases. Attached new SSD drive to your server and mount that on /database directory.
    0

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