Cellthumper Storage Server System Guide
2. How to Access the Machine
Connect to the front end, cellthumper.cacr.caltech.edu:
ssh -l username cellthumper.cacr.caltech.edu
Please edit, compile, build and run your jobs on cellcenter; currently there is no scheduler deployed.
NOTE: password entry into the Sun Fire X4500 is not allowed, but rather access is permitted via ssh public keys. If you do not have a public key, please see SSH Key Instructions.
3. System Configuration Information / Technical Summary
The cellthumper Sun Fire X4500 provides storage server capabilities configured to meet the needs of applications from Caltech’s Kennedy Lab, studying biochemical signal transduction systems in central nervous system synapses. The configuration, integrated by Sun Microsystems and CACR’s technical support team, consists of 2 AMD Opteron 285 dual core 2.6 GHz processors, with 16 GB main memory.
Technical Summary:
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4. Available File Systems and Descriptions/Intended Usage
- Project work area, /zfs1/project-id/user-id, for users needing to access the 17 TB of local storage.
Send mail to cacr-cellcenter-support at cacr.caltech.edu. CACR technical support is available during standard business hours (M-F, 8am to 5pm); after hours responses are as time permits.
6. Expectations About System Down Times/News
Scheduled Preventive Maintenance (PM) is Monday from 0900 to 1300. CACR Operations will not always take the full PM for systems work. If you would like to schedule benchmarking or test runs with dedicated access to the entire system, asking cacr-cellcenter-support for a portion of PM time is fine and encouraged.
News about operational changes (e.g. system software upgrades, file system policy changes, dedicated runs) will be posted using news. New news items since last ssh’ing to the head node will be displayed automatically.
Using news:
- /usr/local/bin/news -help
- Usage:
- news prints all new news items
- news X prints news item “X”
- news -a prints all news items
- news -l prints names of all news items
- news -h prints this message
7. Miscellaneous System Software
- Tell us what you’d like!
8. Performance
Coming Soon.
All users are expected to adhere to the CACR Computing Policies.







