LCLS users reported that they were unable to access various files stored on a 1PB Lustre filesystem. Scientific Computing Services diagnosed the problem and ran utilities to repair file system inconsistencies, restoring the access to user's files.
Cyber Safety (critical to keep all Lab computing services in operation)
Scientific Computing Services applied a mitigation for a very serious security vulnerability which affected 1,042 managed Red Hat Enterprise Linux 6 hosts. SCS applied this mitigation using central configuration management within hours of learning of the vulnerability, thereby preventing a published exploit, which was actively compromising systems on the internet, from affecting the SLAC network and impacting scientific computing resources.