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The SSG has a set of midrange Linux servers running the Linux OS available primarily for running server-side applications (like web servers and databases) and very memory-intensive processes.
The names of these servers are: ssg-srv2,obiwan, falcon.

    • 8 cores, Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
    • 144 GB of RAM
    • 3 TB of disk storage
    • Priority: large memory > 4 GB process, or light number-crunching duty

      Run your programs here till May 2014. Decommissioning this server in Summer 2014

    • 8 cores, Intel(R) Xeon(R) CPU E5530 @ 2.40GHz
    • 132 GB of RAM
    • 20 TB of disk storage
    • Priority: Database storage and big-data storage.

      Deploy your database data here.

  • (Retiring in June 2013)
    • 4 AMD Opteron 850 2.4 GHz CPUs
    • 16 GB of RAM
    • Priority: databases
    • This machine hosts MySQL4 and MySQL5 database servers.

      Don't run anything on obiwan without checking with Vinodh first.

  •  (Retiring in May 2013)
    • 2 AMD Opteron 246 CPUs 2 Ghz
    • 8 GB of RAM
    • Priority: services-only
    • This machine hosts SSG production web servers and databases.

      Don't run anything on falcon without checking with Vinodh first.


How do I get an account on ssg-srv2?

Please contact Vinodh Srinivasa or Mike Hanby for an account. Your authentication credentials will be your blazerid and password.

How do I request for software to be installed?

Most programs can be installed and run from your home directory. If, after testing it thoroughly, you decide that the software is generally useful, that would be an appropriate time to contact a system administrator to install in a system-wide location.

What can I run on these servers?

The restrictions on what kinds of processes are allowed for each server is described for each server (above) under the bullet point "Priority".

What is a light duty process?

Light duty processes are defined as processes that run for less than a day. More computationally intensive processes should be run on the clusters, which are, on average, much faster and more predictable than these servers when under load (each server currently has 5-6 regular users).

What is a large memory process?

ssg-srv2 was specifically purchased to run large memory processes, which are defined as processes that require more memory than the typical desktop computer or cluster node. In other words, this is a process that allocates a data structure that requires greater than 4 GB of memory.

Are there any quotas on disk usage?

Please be aware that disk space is NOT INFINITE. Before you do any big downloads, double-check the disk space. The easiest way to do this is to open a shell and execute:

which will report the amount of used and available disk space on the various mount points for whatever machine you happen to be logged into.

What is a services-only server?

That means web servers, databases, and source code repositories are hosted here. Please do not run any computationally intensive processes on this server as this will affect the responsiveness of hosted web applications, like Power Atlas and HDBSTAT.

Where can I learn more about Linux commands?

We suggest starting with this nice intro to basic Linux commands by Corey Shum.

Are my files backed up?

The files in your home directories are not backed up automatically. For important data, source code, and results, we suggest putting those in version control (see for further detail). The version control repositories are backed up automatically as described on the wiki page at For other backup needs, please get in touch with Vinodh Srinivasa or Mike Hanby to discuss possible solutions.


SeverPhysical Location (Building/Room)Purchase DateServer Name/TypeLicense StatusLicense Expiration DateContract #PriceNotes
ssg-srv1BECJuly 26 2007Sun Fire X4200 M2 +  it's attached storage (Sun J4200)Expired NK20268751 Sun Fire X4200 M2 x64 Server - $11,153
ssg-srv2BEC PowerEdge R710 + Dell MD 1200 StorageExpired    
ssg-srv3BECJun-16 ActiveJune 1st 2016 $14,123.34  + $11,875.68 = $25,999.02 
ssg-srv4BEC PowerEdge R720 (225-2133)ActiveOctober 1st 2017 $16,990.00 
VM Physical ServerEngineering's VMware Vcenter       
Generation TypePhysical Location (Building/Room)Purchase DateInfrastructure InfoLicense StatusLicense Expiration DatesNotes
Generation #3BECLast few months of 2010• Dell based 48 2x6 core (576 cores total) 2.66 GHz Intel Xeon X5650 compute nodes with quad data rate Infiniband.
• High-performance storage build-out for capacity and redundancy with 120TB DDN and 2.3TB of RAM
ActiveOctober 1st 2015sipseq.q
Generation #4BEC •  3 nodes with a total of 48 cores based on Intel Xeon E5-2680 @ 2.70GHz with access to 384GB of memory per nodeMActiveSept 6th 2017ssg.q
  • None