Article archive for April, 2006

Useful list of free online programming tutorials and books

April 28th, 2006

For those programming here on the VirtualRDC or elsewhere, this list might be a useful reference point. Don’t forget the ever useful UCLA Academic Technology Services pages and our very own CISER Online Computing Help. For those preferring the source, the SAS Online Documentation is always useful.

NSF01 is accessible again

April 26th, 2006

NSF01 is accessible again since noon on 26 April 2006. Fast disk access to 7.5TB is now available under /temporary/saswork1. However, direct access using thin clients is still not feasible until the NX server gets re-installed – please log in to your local RDC node (rdc07, rdc10) first, then SSH to NSF01 (this is confirmed to work). [More »]

Icon Programming Language available

April 25th, 2006

We have compiled the latest version of the Icon programming language. RPM packages can be downloaded for i586, x86_64, and ia64 at our download site.

NSF01 hopefully back up by 27 April 2006

April 25th, 2006

The latest news from CSvD is

We think we are close. We think the system will be usable tomorrow. [...] more details tomorrow.

[More »]

NSF01 expected back up by early 25 April 2006

April 24th, 2006

The primary system disk had problems that prevented booting since Friday. It looks like the problem has been nailed down, and a solution found. Quoting a Census email message:

NSF01 will be booted from B drive. The goal is to have NSF01 available by COB today with existing data.

Tomorrow Paul [Garn, SGI] and Leo [Redhat Engineer] will decide upon the best method for presenting the additional 7TB of data and hope to have a strategy for this by COB tomorrow.”

NSF01 is down

April 22nd, 2006

NSF01 has done down during non-routine system maintenance, system disk degraded. More details to follow. As of 11:21, the system is down, and is expected to remain down for at least Monday morning as well.

NX servers updated

April 21st, 2006

We have updated the NX servers on all nodes to the commercial NoMachine version. This should improve reliability and functionality. [More »]

Minor maintenance on VRDC nodes today

April 21st, 2006

We will be doing some minor maintenance on the VirtualRDC nodes today, affecting only the NX method of logging in. Other access methods should be unaffected. Consult the VirtualRDC guide on how to use the other methods.

SAS Data Quality Server license extended

April 21st, 2006

The license for SAS DQ server, which can be used for fuzzy matching of datasets similar to SRD matchers,has been renewed. [More »]

Useful tips for R users

April 19th, 2006

A link I found with lots of useful R tips. As so often, thanks to the Statistical Modeling, Causal Inference, and Social Science blog.