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df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/md2       1016G   19G  947G   2% /
/dev/md1        496M  149M  322M  32% /boot
/dev/md3        4.0T  238G  3.6T   7% /home
/var/tmpMnt    1008M  858M  100M  95% /tmp

I want to increase /var/tmpMnt to 10GB I fear data lost my server has important sites

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closed as off-topic by HopelessN00b, MadHatter, Jenny D, mdpc, Ward Feb 6 '14 at 19:19

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions must demonstrate a minimal understanding of the problem being solved. Try including attempted solutions, why they didn't work, and the expected results. See How can I ask better questions on Server Fault? for further guidance." – HopelessN00b, MadHatter, Ward
If this question can be reworded to fit the rules in the help center, please edit the question.

First of all, if you fear you might loose data you have one /tmp you should know that this is a directory that often is [cleared out at boot or at shutdown][1] by the operating system / linux distribution. Second, do not place important data you can not afford to loose on /tmp. [1]: – pkhamre Feb 6 '14 at 12:27
temp is used for temporary files . I mean my server sites are important . I only want to increase /var/tmpMnt to 10 GB so that nothing go wrong on server – Mohammad Alipour Fathkoohi Feb 6 '14 at 12:32
up vote 0 down vote accepted

From what i can see your /tmp is backed by a loop mounted file.

The easiest way to expand it (if you don't care for the data there). One possible way to do it is with dd:

  • dd if=/dev/zero of=/var/tmpMnt bs=2M count=5120 - will create 10G empty file (needs to be formatted with a filesystem afterwards)
  • dd if=/dev/zero of=/var/tmpMnt bs=1 count=0 seek=10G - will create empty and SPARSE file that (needs to be formatted with an FS

Additionally looking over the setup:

  • it is not recommended to use /tmp backed by a file - it increases the load.
  • your root is quite big. I really can't imagine what you are going to put in a 1T root partition. I would advise on shrinking it to something smaller.
  • generally with this setup i would recommend to look into LVM for more flexible space allocation.
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