The 24 disk drives in the Origin 3400 are configured into 4 separate filesystems. Listed below is a brief description of these filesystems and the disks used to form them.

• /
  The / (root) filesystem contains the operating system and all of the software installed on the machine. It is located on the 18 GB system disk.

• /clone
  The /clone filesystem is used to hold a copy of the root filesystem. If anything should happen to the system disk, the machine can simply be booted from /clone, allowing / to be restored from backups. It is located on a 36 GB fibre channel disk.

• /home/hbar1
  /home/hbar1 contains user home directories. It is composed of two 36 GB fibre channel disks.

• /scratch
  The /scratch filesystem is used by the PBS queues for temporary files. Users may also store temporary files in their directories on this filesystem. It is striped across 20 18 GB fibre channel disks, so it provides very high throughput for large files. This filesystem is NOT backed up.