How to increase tmp directory size in cPanel
This post explains a way to increase tmp directory (/usr/tmpDSK) size in cPanel. You may be noticed the following notification email from cPanel.
Drive Critical: /usr/tmpDSK (/tmp) is 100% full
It is due to the /tmp directory is got filled with temporary files. The file /usr/tmpDSK is created while running the cPanel script /scripts/securetmp. /scripts/securetmp is used to secure the /tmp partition. If you run the script /scripts/securetmp, it will mount the /tmp partition to a temporary file for extra security.
You can simply increase the /tmp directory size using the following steps:
First of all please edit /scripts/securetmp for this line:
my $tmpdsksize = 512000; # Must be larger than 250000
Increase it to the desired size you want to setup. I am changing this line for 4GB here.
my $tmpdsksize = 4096000; # Must be larger than 250000
Please stop Apache, MySQL and cPanel services to prevent them to write files to tmp directory.
service httpd stop service mysqld stop service cpanel stop
Then you need to unmount /tmp and /var/tmp partitions and remove the file /usr/tmpDSK. Once it is completed, run the cPanel script /scripts/securetmp again.
umount -l /tmp umount -l /var/tmp rm -fv /usr/tmpDSK /scripts/securetmp
It will create /tmp partition with the size 4GB and then it will mount to the file /usr/tmpDSK. Once the process is completed start the services:
service httpd start service mysqld start service cpanel start
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