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/dev/shm space in red hat linux

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# 1  
Old 04-08-2011
/dev/shm space in red hat linux
I am using redhat linux machine and oracle11g version.

/dev/shm shows 88%. Will this be freed automatically? OR should i clean any files?
Code:
>df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/systemvg-rootvol
                      7.6G  2.2G  5.1G  30% /
/dev/mapper/systemvg-homevol
                      1.9G   63M  1.8G   4% /home
/dev/mapper/systemvg-varvol
                      1.9G  519M  1.3G  29% /var
/dev/cciss/c0d0p1     251M  156M   83M  66% /boot
tmpfs                  12G   11G  1.5G  88% /dev/shm

# 2  
Old 04-08-2011
Only when you shutdown/stop Oracle.
# 3  
Old 04-09-2011
fpmurphy, thanks for your response. I don't have any plan to shutdown at this moment. But does this impact anything now?
# 4  
Old 04-09-2011
Currently there won't be any impact,However,when you try to start some other APP you may get a shm errors.
# 5  
Old 04-09-2011
It also means you're out 11 gigs of RAM of course.
# 6  
Old 04-10-2011
Thank you every one!! Thanks for the explanation!!
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