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Ranger Hardware Specifications

2 Racks of compute hardware Each Rack containing

  • Unordered List Item48 blades, divided into 4 shelves

Each Blade consists:

  • Unordered List Item4 Quad-core CPUs (total 1,536 cores)
  • Unordered List Item16, 2GB DIMMs
  • Unordered List Item8 GB flash module for OS

File System

ZAMREN users NFS to serve two directories, HOME and SCRATCH . The HOME directory has a 2.5 GB quota and is backed up. SCRATCH is not for temporal storage and is purged periodically and hence not backed up. It has a 5TB quota.


When you login,the system automatically sets you to the home directory, /home/xxxxxxxx where xxxxxxxx is replaced by your login name. Users should store important files that should be backed up in this directory up as home directory is backed up daily. This directory has a quota limit of 2.5 GB. The login node and any compute node can access this directory. Users are allowed to install applications in their home directories. However , ZAMREN will not support those applications. Execution of jobs in the home directory is not allowed. Jobs executed from this directory will be automatically stopped.


It is a link in a users home directory in the format /home/xxxxxxxx/scratch/ where xxxxxxxx is the username. The directory is meant for storing temporary files and is accessible from compute nodes. Execution of jobs should be done from here. Please noted that files are not backup up in this directory and can be purged at anytime. No recovery services will be available for files once purged. Users are urged to be saving their files in their home directories.


overview.txt · Last modified: 2016/01/20 09:35 by Editor