DF command - Incorrect Size Display Of /var/TKLC/epap/free Partition And Other Partition

Asset ID:	1-71-2144095.1
Update Date:	2016-06-06
Keywords:

Solution Type Technical Instruction Sure

Solution 2144095.1 : DF command - Incorrect Size Display Of /var/TKLC/epap/free Partition And Other Partition

Applies to:

Oracle Communications EAGLE (Software) - Version EPAP 16.0 and later
Information in this document applies to any platform.

Goal

df command shows incorrect size for available space

Solution

By default, ext2 and its successors (ext3, ext4) reserve 5% of the capacity of each filesystem for use by the root user. This is done so that administrator or any root-owned daemons will not face a condition that there is no space left to work in.
That 5% is not visible and not usable by normal user.

df command will show reduced available space.

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vgroot-lsms_db 210G 155M 199G 1% /var/TKLC/lsms/db

/dev/mapper/vgroot-lsms_free 138G 89M 131G 1% /var/TKLC/lsms/free
/dev/mapper/vgroot-lsms_logs 36G 57M 34G 1% /var/TKLC/lsms/logs

We can see that in all the places, 5% space is hidden from the user.

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