[CentOS] Suddenly increased my hard disk

Thu Apr 7 03:44:07 UTC 2016
Chandran Manikandan <tech2mani at gmail.com>

Hi All,

I have running Centos 6.5 32 bit machine.
This machine is running qmailtoaster packages and mailbox size is 385 GB.

if i run the df -h command it show 385 GB out of 1TB

I have run the same command today suddenly shows 576 GB out of 1 TB.

I didn't update any bulk file and mail transaction is not very high.

How do i check this issue and fix it.

how do i find out and why suddenly showing this much of increasing the size
of hard disk.

Could anyone help me

*System Administrator*