Cloud Computing

Savio Computing Cluster Current Operational Status, Risk Mitigation, and Best Practices

February 24, 2026

We would like to provide an update on the Savio supercomputing cluster global scratch parallel file system service restoration and long-term stability. On Friday, January 23, 2026 the scratch file system on Savio became completely unavailable on the Savio cluster’s login, data transfer, and compute nodes due to an overutilization in terms of size of the data and large number of files (~10 millions or more) on the Scratch disk space which exhausted the metadata data and object storage targets. During the recovery period, we worked with users who requested early...

Chris Paciorek

Chris Paciorek is a statistical computing consultant and adjunct professor in the Department of Statistics. He also serves part-time as a user consultant for Berkeley Research Computing.

Areas of expertise: high-performance computing, cloud computing, and programming for data analysis/data science/statistics.

In his research, Chris works on statistical methods, often Bayesian methods, applied to environmental and public health problems, including climate science, ecology, and global health. In recent years, he has taught graduate classes on statistical computing and...

Rick McGeer

Rick is a Berkeley PhD from EECS who's done extensive work in industrial research and startups in Cloud Computing, Distributed Systems, Computer Networking, and Computer-Aided Design of Integrated Circuits He's particularly interested in democratizing access to computing systems and data.

Joleen Locanas

Joleen helps on the Secure Research Data and Compute platform and brings deep expertise in service management and service design from her work in bIT.

Jason C. Christopher

I am a Research Computing Architect, Service Lead and Information Security Officer in Research IT at UC Berkeley. I currently manage the:

Secure Research Data and Computation (SRDC) Platform, providing secure, scalable, customized virtual machines, and high performance computing (HPC) for research with sensitive and protected data. The Platform serves schools and departments across campus, ranging in study from...

Fengchen Liu

Fengchen just joined the group as a Science IT Consultant. Prior to joining the Lab, he worked at a Fintech company as a senior AI Engineer, at RMS (Risk Management Solutions) as a Software Engineer, and at UC San Francisco for 7 years on computational epidemiology using HPC. His research background (researchgate.net/profile/fengchen_liu) includes predictive models of infectious diseases and control of epidemic disease...

Ken Lutz

Director of Research IT

Mark Yashar

Research IT / BRC Domain Consultant and HPC User Support; Research Specialist at UCB CITRIS

Clint Hamilton

Clint Hamilton is a Domain Consultant with Berkeley Research Computing and a PhD student in Finance at the Haas School of Business. His research focuses on behavioral finance. Additionally, he is interested in big data and high performance computing.