[Jlab-scicomp-briefs] Scientific Computing Outage Tue-Wed 6/21-22/11

[Sandy Philpott]

Jefferson Lab's scientific computing systems for experimental physics 
will be unavailable starting on Tuesday afternoon June 21 for the lab's 
scheduled power load reduction test, and will remain unavailable through 
Wednesday afternoon.  During the scheduled outage, we will take the 
opportunity to perform system maintenance tasks, and relocate systems 
within the computing facility.

Additionally, Infiniband networking and Lustre file system support will 
be added to the data analysis cluster and interactive systems. This 
upgrade will pave the way for improving I/O capabilities over the 
currently supported NFS file services using Ethernet.  Details regarding 
the IB and Lustre changes, including accessing a new /volatile 
filesystem and support for /cache using Lustre, will be forthcoming.

Also, the ifarml64 interactive systems will undergo system changes.  The 
current ifarml1 and ifarml6 8-core Nehalem systems will be relocated to 
the analysis cluster and replaced with a second 32-core AMD server 
ifarm1102, like the current ifarm1101.