Is it Ok to increase /dev/shm while clusterware and databases are up and running ?

Hi

Is it Ok to increase /dev/shm while clusterware and databases are up and running ?

I will use these formulas :

To fix the current issue the solution would be to allocate at least 1073741824 bytes for /dev/shm.

# mount -t tmpfs shmfs -o size=1073741824 /dev/shm
# df -k /dev/shm
Filesystem 1K-blocks Used Available Use% Mounted on
shmfs 1048576 0 1048576 0% /dev/shm

To retain the value across machine startups, make sure that the /etc/fstab mount database contains a reference to this new value, like in:

shmfs /dev/shm tmpfs size=1073741824 0