Hardware
Machines in the CTC machine room run either Windows or Linux.
Production resources include:
Login nodes (Windows and Linux)
These are the nodes where users can login and prepare jobs for execution.
They are not intended for compute-intensive work. See CTC documents
Accessing CTC Machines (for Windows) and/or
Introduction to Linux at the CTC (section on Login Procedures).
Batch nodes (Windows and Linux)
These nodes are controlled CTC's vsched batch scheduler, which manages batch
submission and execution. A user can login to a batch node only when he/she has a job currently
running on the node. For details about vsched and how users can submit batch jobs,
see the
Velocity Scheduler workshop module, and CTC documents
Velocity Scheduler and
Additional vsched Information for Linux.
Fileservers
These hold user home directories and other shared files. Home directories reside
on Windows machines and are NFS-mounted to Linux login and batch machines.
Other supporting servers
Other servers include Windows domain controllers, sofware license server, print server,
web servers, and more.
Collaboratory machines (Windows)
The Windows workstations in the Collaboratory (651 Rhodes Hall) feature a rich set of application
software for interactive use, including visualization tools. For details on
using this facility, see the CTC document
Collaboratory Availability.
Backup Software
Tivoli Storage Manager
CTC uses this IBM product to configure automated backup and restore functions.
User home directories are backed up nightly
The backup includes all user home directories (i.e., everything under H:\Users).
As long as files remain in your user folder, they will exist in the backup. When
you delete a file from your user folder, the file is marked inactive and is removed
from the backup system 6 months after it was deleted. For additional details, see
CTC's
Getting Started - New User Guide.
Need files restored? Contact
CTC consulting
Users who find themselves needing a file from backup tape should contact
CTC consulting with the complete
name of the file(s) they need restored.
Remote Access to CTC Machines
Windows login nodes: Remote Desktop or SSH
Users can use a remote desktop client (available for both
Windows and non-Windows machines) or SSH. For more details on using Remote Desktop or SSH to access
Windows machines, see the appropriate sections in the
Getting Started workshop module and/or the CTC document on
Accessing CTC Machines.
Windows batch nodes: Remote Desktop
A Window batch node
can be accessed via a Remote Desktop connection only by the
user whose
job running is currently running on the node. For more details
on using Remote Desktop, see the appropriate sections in the
Getting Started workshop module and/or the document on
Accessing CTC Machines.
Linux login nodes and batch nodes: SSH
Login nodes can be accessed via SSH. A Linux batch node can be accessed via
SSH only from a login node and only by the user whose job running is currently running
on the node. For more details, see the appropriate sections in the
Getting Started workshop
module and/or the document
Introduction to Linux at the CTC.
Collaboratory machines: no remote access by users
Users must actually visit 651 Rhodes Hall to use the Collaboratory machines.
For details on using this facility, see the CTC document
Collaboratory Availability.
