Your system administrator must have imposed limitation on your account for file size creation. You need to use the ulimit command to find out file size limitation. This command provides control over the resources available
Task: Find out the current resources available to your shell / account
Open the Terminal and then type the following command:
core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited max nice (-e) 0 file size (blocks, -f) 5000 pending signals (-i) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) unlimited max rt priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 2047 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
The above output clearly stat that you can create file size upto 5MB limit. To change this limit or if you do not wish to have a limit you can edit your /etc/security/limits.conf file (login as the root):
# vi /etc/security/limits.conf
Look for your username and fsize parameter. Delete this line or set new parameter. For example consider following entry where I am setting new file size limit to 1 GB:
vivek hard fsize 1024000
Save the changes. Log out and log back in for the changes to take effect.
Now, your limit is 1GB file size. If you do not want any limit remove fsize from /etc/security/limits.conf.