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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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    • 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 🙂

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