Increasing /tmp partition in cPanel servers

Sometimes we may have to increase the /tmp partition in a cPanel server. cPanel has got an inbuilt script for this and the procedure to do this is as follows:

1) Stop mysql, apache, cpanel, litespeed to prevent using /tmp partition
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/etc/init.d/mysql stop
/etc/init.d/cpanel stop
/etc/init.d/httpd stop
/etc/init.d/lsws stop
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Now, move /usr/tmpDSK to a different location(sometimes we may have to prefer this for later)
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mv /usr/tmpDSK /usr/tmpDSK_back
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2) Umount /var/tmp and /tmp.

If you find partition busy then do an (lsof | grep /tmp) and kill the process.

Or go a lazy umount as follows:
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umount -l /tmp
umount -l /var/tmp
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Modify the following script as below:
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vi /scripts/securetmp

Look for following line:
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my $tmpdsksize     = 512000;    # Must be larger than 250000
----
Increase the value to a desired value and re-run the script:
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/scripts/securetmp
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This will recreate /tmp (tmpDSK) partition.

After this restart cpanel,apache and mysql.