[StarCluster] need scratch space

[Jian Feng]

Dear starcluster community,

I created an ec2 cluster using m3.xlarge instance (2*40GB SSD). I did not see any scratch space or /scratch folder at all. Here is the disk space layout. 

root at node001:~# df -h
Filesystem        Size  Used Avail Use% Mounted on
/dev/xvda1         20G  5.6G   14G  30% /
udev              7.4G  8.0K  7.4G   1% /dev
tmpfs             3.0G  176K  3.0G   1% /run
none              5.0M     0  5.0M   0% /run/lock
none              7.4G     0  7.4G   0% /run/shm
/dev/xvdaa         37G  177M   35G   1% /mnt
master:/home       20G  5.6G   14G  30% /home
master:/opt/sge6   20G  5.6G   14G  30% /opt/sge6

In my application, I need a scatch folder on each node that has about 50G space. Is there a way to do that? I don't really need /home or /opt/sge6 stuff. And I don't run mpi applications. 

Maybe I should recreate an AMI?

Thanks!
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