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    What Is Eating CentOS Disk Space

    Scheduled Pinned Locked Moved IT Discussion
    centoslinuxstoragedudf
    34 Posts 2 Posters 9.0k Views
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    • ajin.cA
      ajin.c
      last edited by

      Hi SAM,

      since the server was down , i had to install and configure a new one. i will come back as soon as the temperory issues are sorted out .

      1 Reply Last reply Reply Quote 0
      • scottalanmillerS
        scottalanmiller
        last edited by

        In the future, you might want to consider separating the /home directory out into its own filesystem so that end users cannot impact the system in this way. Or using quotas to limit how much damage that they can do.

        1 Reply Last reply Reply Quote 1
        • scottalanmillerS
          scottalanmiller @ajin.c
          last edited by

          @ajin.c said:

          root@trvbackup [/home]# du -smx * | sort -n

          right ?

          I just noticed from you df -h above, /home is already a separate logical volume. That is not the problem. The issue is that your /var is too big. Run this instead...

          du -smx /var/ 2> /dev/null | sort -n | tail -n 5*

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          • ajin.cA
            ajin.c
            last edited by

            Hi Sam,

            I had mounted a 2 TB hdd on my server, when i had this issue ...
            @ arround 10 Am IST server got stuck. And i started building new one ...................Removed the HDD and mounted to the new one.

            1 Reply Last reply Reply Quote -1
            • ajin.cA
              ajin.c
              last edited by

              As soon as i un mounded the External hdd ., i tried df -h
              and got the output..........

              root@trvbackup [~]# df -h
              Filesystem Size Used Avail Use% Mounted on
              /dev/mapper/vg_trvbackup-lv_root
              50G 28G 19G 60% /
              tmpfs 3.9G 0 3.9G 0% /dev/shm
              /dev/sda1 485M 53M 407M 12% /boot
              /dev/mapper/vg_trvbackup-lv_home
              402G 145G 236G 39% /home
              /usr/tmpDSK 1.6G 38M 1.5G 3% /tmp

              That means 19 gb free as soon as i unmounted my External Hdd.

              scottalanmillerS 1 Reply Last reply Reply Quote 0
              • ajin.cA
                ajin.c
                last edited by

                And please find the output of this without The external Hdd

                root@trvbackup [~]# du -smx /var/* 2> /dev/null | sort -n | tail -n 5
                4 /var/tmp
                30 /var/cache
                377 /var/cpanel
                5323 /var/log
                17030 /var/lib
                root@trvbackup [~]#

                scottalanmillerS 1 Reply Last reply Reply Quote 0
                • scottalanmillerS
                  scottalanmiller @ajin.c
                  last edited by

                  @ajin.c said:

                  As soon as i un mounded the External hdd ., i tried df -h
                  and got the output..........

                  root@trvbackup [~]# df -h
                  Filesystem Size Used Avail Use% Mounted on
                  /dev/mapper/vg_trvbackup-lv_root
                  50G 28G 19G 60% /
                  tmpfs 3.9G 0 3.9G 0% /dev/shm
                  /dev/sda1 485M 53M 407M 12% /boot
                  /dev/mapper/vg_trvbackup-lv_home
                  402G 145G 236G 39% /home
                  /usr/tmpDSK 1.6G 38M 1.5G 3% /tmp

                  That means 19 gb free as soon as i unmounted my External Hdd.

                  That would be coincidental. Possibly a process was running and holding open files. Removing the drive might have killed the process releasing the storage for the filesystem to clean up.

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                  • scottalanmillerS
                    scottalanmiller @ajin.c
                    last edited by

                    @ajin.c said:

                    And please find the output of this without The external Hdd

                    root@trvbackup [~]# du -smx /var/* 2> /dev/null | sort -n | tail -n 5
                    4 /var/tmp
                    30 /var/cache
                    377 /var/cpanel
                    5323 /var/log
                    17030 /var/lib
                    root@trvbackup [~]#

                    Yes, that supports my theory. It appears to have cleaned up by the time that you ran this the first time.

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                    • ajin.cA
                      ajin.c
                      last edited by

                      So Is there any way to figure it out , so that i can take necessary steps for the next time..

                      scottalanmillerS 1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller @ajin.c
                        last edited by

                        @ajin.c said:

                        So Is there any way to figure it out , so that i can take necessary steps for the next time..

                        Most important thing is to have monitoring watching disk space on a regular basis so that you can see if it starts to fill up and get an alert. Every business has this issue. Logging or any number of things can cause it to fill up so having a way to keep tabs on it is always important.

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                        • ajin.cA
                          ajin.c
                          last edited by

                          Sure , will keep monitoring it regularly.
                          Thank you very much for your help and support SAM...........

                          scottalanmillerS 1 Reply Last reply Reply Quote 0
                          • scottalanmillerS
                            scottalanmiller @ajin.c
                            last edited by

                            @ajin.c you bet. We are here to help 🙂

                            1 Reply Last reply Reply Quote 0
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