There are two IBM systems (e1350 and Blue Gene/P cluster). In summary, the e1350 cluster consists of 160 compute nodes, 3 hotspares, 3 storage nodes, back-up node, management node and a single login node. These two systems are connected to the Storage Area Networks (running GPFS) of about 94 Terabytes.

Below is the structure of the file system in IBM Systems:

[chpcln][/root]> df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              68G   68G  1.6M 100% /
tmpfs                 8.4G  8.0K  8.4G   1% /dev/shm
/dev/home             2.8T  2.1T  677G  76% /CHPC/home
/dev/local            310G   33G  278G  11% /CHPC/usr/local
/dev/work              89T   78T   12T  88% /CHPC/work
[chpcln][/root]>

The GPU has its own designated login node connected to the 5 compute nodes and 6 storage nodes. GPU also has storage capacity of 12 Terabytes (NFS File system) and its structured as follows:

[root@hn.gpu ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md0               49G   16G   31G  35% /
tmpfs                  12G     0   12G   0% /dev/shm
/dev/gpfs              12T   55G   12T   1% /GPU
[root@hn.gpu ~]#