General U-System Information

to develop and post webpages for viewing on the Internet by the public
for email account access (through applications such as Pine)
for running programs like statistical, scientific and graphics applications in a Unix environment
for Internet access (via lynx)

The U-System consists of two SUN V210 multiprocessor boxes and one SUN V440 running Solaris 10 (SunOS 5.10). Some of the features of these machines are:

SUN V210

2-way boxes, 1.0GHz UltraSPARC-IIIi CPU
2 GB memory per box
1 MB L2 (secondary cache)

SUN V440

4-way boxes, 1.0GHz UltraSPARC-IIIi CPU
8 GB memory per box
1 MB L2 (secondary cache)

Configuration

The interactive nodes consist of 2 boxes with 2 processors each (4 processors in all). The generic name or alias for these machines is u.arizona.edu. Users log into these frontend machines using

Menu mode to select from a menu of commands
or
Shell mode to directly execute Unix commands and submit jobs to the "batch" machines

The batch node consist of one 4-processor box. This means that there will be at least 4 queues for users to submit cpu-consuming jobs. See Batch Utility for more information on the use of batch processing.

Disk Allocations

Each $HOME directory on u.arizona.edu is allocated 250 MB.
The Email server is separate from u.arizona.edu. Users have a default allocation of 100 MB of storage for email on email.arizona.edu, it can be increased to 250 MB in the WebMail menus ("Options" -> "Manage Mail Storage").
Additional temporary space may be allocated by using the xdisk utility. The maximum period of time for xdisk allocation depends on the amount of storage space requested. Any allocations would be in
/xdisk/$USER, e.g., /xdisk/username
On the U-System there is no limit to /scratch space, however, it is deleted daily at about midnight.

Access

To use the U-System there are special access instructions for the type of account and software you will need.