Article archive for November, 2007

Brief downtime of several VRDC nodes tonight

November 29th, 2007

Sorry for the short notice, but we have to back out the power distribution changes made earlier this week. The following servers are going to be briefly offline later tonight:

  • the web server and all wikis
  • repository.vrdc
  • vrdc3201.vrdc

The downtime is not expected to be longer than 10 minutes, occurring sometime after 6PM.

Brief downtime of web servers tonight

November 27th, 2007

We will be switching power supplies on the web server host. The web site might be offline for up to 5 minutes. Thank you for your patience.

Migration of webservers completed

November 26th, 2007

We have finished migrating this site, as well as sundry wikis, to a new (and updated) server. [More »]

NFS01 is running again

November 21st, 2007

——– Original Message ——–
Subject: NFS01 is running again
Date: Wed, 21 Nov 2007 19:05:11 -0500
From: kyle.z.zzzzzz@xxxxx.xxx

Lars,
The server is back up and running using the 3PAR as temp space.
Please take a look at it and email me if you see any problems.
Thanks,
Kyle

Kyle ZZZZZZZ
————————–
Sent from my BlackBerry Wireless Handheld

Unavailability of wikis over Thanksgiving

November 19th, 2007

We will be updating the server hosting the website and the wikis over Thanksgiving. There might be short interruptions to the webserver. We will be locking down the Wikis on Thursday morning. They should be back online by Monday morning.

NSF01 still down

November 19th, 2007

From the Census system admins:

We had expected to return NSF01 back to our customers at COB today but I was just informed that 8 disk drives within the JBOD used as temporary SAS space failed and have not recovered!! We have contacted SGI for service. The System Engineer will remain on-site until resolution.

NSF01 still down, back up on Monday, 2007-11-19

November 16th, 2007

NSF01 went down on Sunday, November 11, 2007, due to a massive failure of the (single) IO board in the SGI 3700bx2. They are currently rebuilding the temporary filesystems. It is unlikely that the system is up before Monday.
[More »]

Final Report to the Social Security Administration on the SIPP/SSA/IRS Public Use File Project

November 14th, 2007

John M. Abowd, Martha Stinson, and Gary Benedetto, “Final Report to the Social Security Administration on the SIPP/SSA/IRS Public Use File Project“, November 5, 2006. [More »]

Testing Disclosure Risk in the proposed SIPP-IRS-SSA Public Use Files

November 14th, 2007

John Abowd, Sam Hawala, Bryan Ricchetti, Martha Stinson, “Testing Disclosure Risk in the proposed SIPP-IRS-SSA Public Use Files“. Document submitted to the Census Bureau’s Disclosure Review Board on November 16, 2006. [More »]

Using the SIPP Synthetic Beta for Analysis

November 13th, 2007

John M. Abowd, Gary Benedetto, Martha Stinson, “Using the SIPP Synthetic Beta for Analysis“. [More »]