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This is driving me crazy! My server run out of space. I cleaned up some files by removing the folders. The amount of free space didn't go up (% wise). This is what I now see:

enter image description here

As you can see, it shows 315gb size, of which 298gb is in use. So why does it show 100% used? The only reason I have the 1.1gb free that you can see if due to removing more files are reboot. Even though I got rid of 15+gb of files before :/

I've tried quite a few things such as lsof +L1:

    COMMAND    PID      USER   FD   TYPE DEVICE SIZE/OFF NLINK  NODE NAME
php-fpm7.  726      root    3u   REG    8,0        0     0   605 /tmp/.ZendSem.sRUIJj (deleted)
mysqld     863     mysql    5u   REG    8,0        0     0  2938 /tmp/ibj2MjTy (deleted)
mysqld     863     mysql    6u   REG    8,0        0     0 10445 /tmp/ibgsRaLu (deleted)
mysqld     863     mysql    7u   REG    8,0        0     0 76744 /tmp/ibx2g3Cq (deleted)
mysqld     863     mysql    8u   REG    8,0        0     0 76750 /tmp/ib7D93oi (deleted)
mysqld     863     mysql   12u   REG    8,0        0     0 77541 /tmp/ibSr0xre (deleted)
dovecot   1278      root  139u   REG   0,23        0     0  2021 /run/dovecot/login-master-notify6ae65d15ebbecfbf (deleted)
dovecot   1278      root  172u   REG   0,23        0     0  2022 /run/dovecot/login-master-notify4b18cb63ddb75aab (deleted)
dovecot   1278      root  177u   REG   0,23        0     0  2023 /run/dovecot/login-master-notify05ff81e3cea47ffa (deleted)
cron      2239      root    5u   REG    8,0        0     0  1697 /tmp/#1697 (deleted)
cron      2240      root    5u   REG    8,0        0     0 77563 /tmp/#77563 (deleted)
sh        2243      root   10u   REG    8,0        0     0  1697 /tmp/#1697 (deleted)
sh        2243      root   11u   REG    8,0        0     0  1697 /tmp/#1697 (deleted)
sh        2244      root   10u   REG    8,0        0     0 77563 /tmp/#77563 (deleted)
sh        2244      root   11u   REG    8,0        0     0 77563 /tmp/#77563 (deleted)
imap-logi 2512  dovenull    4u   REG   0,23        0     0  2023 /run/dovecot/login-master-notify05ff81e3cea47ffa (deleted)
imap-logi 3873  dovenull    4u   REG   0,23        0     0  2023 /run/dovecot/login-master-notify05ff81e3cea47ffa (deleted)
pop3-logi 3915  dovenull    4u   REG   0,23        0     0  2021 /run/dovecot/login-master-notify6ae65d15ebbecfbf (deleted)
pop3-logi 3917  dovenull    4u   REG   0,23        0     0  2021 /run/dovecot/login-master-notify6ae65d15ebbecfbf (deleted)
php-fpm7. 4218    fndesk    3u   REG    8,0        0     0   605 /tmp/.ZendSem.sRUIJj (deleted)
php-fpm7. 4268 executive    3u   REG    8,0        0     0   605 /tmp/.ZendSem.sRUIJj (deleted)

But I can't see anything in there that is locking the files up

Andrew Newby
  • 1,224

1 Answers1

2

Find out what is eating up the disk space, and then find out why, before deleting something.

To show the "Top 10 directories", you could use du -Sh / | sort -rh | head -10.

To show the "Top 10" files", you could use find / -type f -exec du -Sh {} + | sort -rh | head -n 10.

Often you will find huge or not rotated log files, of fast-filling log files. Depending on your findings, it is sometimes enough to delete some older log files, or to configure log rotate, or to configure the log-settings of your services.

Regarding your calculation: This does not have to drive you crazy :-)

Often filesystems reserve 5% space for use by the root user. You have 315G disk size, so 5% would be ~16G reserved space. There is a nice article which explains the background: https://blog.tinned-software.net/utility-df-shows-inconsistent-calculation-for-ext-filesystems/

Lutz Willek
  • 713