Two partitions getting full
I have a web/db server with 4 drives on raid10.
The /usr and /var partitions are getting full.
Should I move /var and /usr to /home and symlink back to them or is that not recommended.
What do you recommend based on best practices.
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda5 8123168 644292 7059584 9% /
/dev/sda8 247004276 13293172 220961520 6% /home
/dev/sda6 1019208 420536 546064 44% /tmp
/dev/sda3 8123200 6292376 1411528 82% /usr
/dev/sda2 10154020 6997620 2632280 73% /var
/dev/sda1 124427 22440 95563 20% /boot
tmpfs 2021744 0 2021744 0% /dev/shm
Operating System: CentOS 5 (64-bit)
Processor: 4 x Quad Core - Intel Xeon E5335
Hard drive: 4 x 15K rpm SAS 147 GB
RAM: 4 GB
The /usr and /var partitions are getting full.
Should I move /var and /usr to /home and symlink back to them or is that not recommended.
What do you recommend based on best practices.
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda5 8123168 644292 7059584 9% /
/dev/sda8 247004276 13293172 220961520 6% /home
/dev/sda6 1019208 420536 546064 44% /tmp
/dev/sda3 8123200 6292376 1411528 82% /usr
/dev/sda2 10154020 6997620 2632280 73% /var
/dev/sda1 124427 22440 95563 20% /boot
tmpfs 2021744 0 2021744 0% /dev/shm
Operating System: CentOS 5 (64-bit)
Processor: 4 x Quad Core - Intel Xeon E5335
Hard drive: 4 x 15K rpm SAS 147 GB
RAM: 4 GB
ASKER CERTIFIED SOLUTION
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ASKER
I modified it, and think this is a better way
cp -r /var /home
cp -r /usr /home
mkdir /var/old_var
mkdir /usr/old_usr
mv /var/* /var/old_var
mv /usr/* /usr/old_usr
cd /var
ln -s /home/var /var
cd /usr
ln -s /home/usr /usr
cp -r /var /home
cp -r /usr /home
mkdir /var/old_var
mkdir /usr/old_usr
mv /var/* /var/old_var
mv /usr/* /usr/old_usr
cd /var
ln -s /home/var /var
cd /usr
ln -s /home/usr /usr
I really wouldn't recommend playing around with /usr as you get into trouble when you start trying to move things around.
As for /var, you should ideally move things in single user mode to reduce the number of processes writing to files.
What I would recommend is moving your largest directory under /var (eg: /var/log) to /home and do
mkdir /home/var
mv /var/log /home/var
ln -s /home/var/log /var/log
/etc/init.d/syslog restart
/etc/init.d/cron restart
/etc/init.d/xinetd restart
As for /var, you should ideally move things in single user mode to reduce the number of processes writing to files.
What I would recommend is moving your largest directory under /var (eg: /var/log) to /home and do
mkdir /home/var
mv /var/log /home/var
ln -s /home/var/log /var/log
/etc/init.d/syslog restart
/etc/init.d/cron restart
/etc/init.d/xinetd restart
ASKER
I am first going to do this on my testing server of course.
cp /var /home
cp /usr /home
mv /var /var/old_var
mv /usr /usr/old_usr
cd /var
ln -s /home/var /var
cd /usr
ln -s /home/usr /usr
And then when I think everything is working fine, I could delete (rm -rf) /var/old_var and /usr/old_usr