I love ZFS + VMware
This morning was one of those mornings IT people dread. I arrived to work and saw a long list of alerts in my email. All the alerts were from the VMware cluster complaining about various host...
View ArticleRedhat/Centos netfilter bug
I discovered this when we were on Centos 5 across the board. I was getting complaints about slow or stalled downloads from the CNDA from users outside our network. We had a hard time reproducing the...
View ArticleClojure and XNAT: a REPL inside
When I’m adding a new feature to XNAT, there’s often existing code that does much of what I need — if I can find it, and if I can figure out exactly what it does. In the absence of detailed internal...
View ArticleRSF-1 High Availablity SSD pool for VM storage and Build space
SSD storage is all the rage in big data today. It is solving a lot of high IOPs problems at the same time introducing new challenges. Its price point is in range of replacing 15K SAS pools when...
View ArticleJob Posting: XNAT Administrator at University College of London
The Centre for Medical Image Computing, part of UCL Department of Medical Physics and Bioengineering, is looking for a Imaging Data Manager to coordinate the deployment of XNAT applications across the...
View ArticleXNAT 1.6.3 Release Details
XNAT 1.6.3 has been released! This is our most heavily-tested release to date, and updates have been made to series importing, the prearchive, administrative tasks and other features. A complete list...
View ArticleXNAT, Heartbleed, and you
The impact of the Heartbleed vulnerability in OpenSSL has been much discussed. How does it affect XNAT users and administrators? Fortunately, our risk exposure is extremely narrow. Lead XNAT developer...
View ArticleDuplicatinator 2.0
The Human Connectome Project generates A LOT of data that needs to be distributed for other researchers. It was clear before the project even started downloading a zip from XNAT would never be...
View ArticleAnnouncing the 2016 XNAT Workshop
The XNAT development team will be hosting a 5-day workshop in St. Louis, Missouri, June 6 – 10, 2016. The workshop will include presentations and hands-on practical sessions covering the full range of...
View ArticleZFS for Research Data Storage
For the IT section of the 2016 XNAT Workshop, I’m releasing a white paper on using ZFS for research data storage. You can download it here: ZFS for Research Data Storage – White Paper 1.0
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