Duration:
12/19/2023 6:30 am — 12/19/2023 9:00 pm

Group Responsible:
Network

Affected Area:
All SDCC services

Expected Impact:
No access to SDCC services during downtime

Maintenance Type:
Planned Maintenance/Downtime

Description:
On Tuesday, December 19th, from 6:30 am EST to 9 pm EST, network connectivity (both WAN and Campus) to/from the SDCC Facility and Science DMZ
will be unavailable due to scheduled maintenance.

This event marks the final phase of the years-long migration of SDCC services from the old data center to the new one. We anticipate the full restoration of
network connectivity by 9 pm EST on December 19th, concluding the outage. During the intervention period, access to SDCC services, including computing
resources (both interactive and batch), storage services (disk and tape), and collaborative tools (such as BNLBox, RCF email, MatterMost, and web services),
will not be available.

To prepare for this network outage, the scheduling of new HTCondor and Slurm batch jobs will cease on Friday, December 15th, at 11 pm EST. This pause
will facilitate the smooth draining and graceful termination of ongoing computing jobs. In addition, access to storage and data transfer services will be
temporarily halted on Monday, December 18th, at 5 pm EST.

This outage does not affect BNL mail service (@bnl.gov domain), which will be available during this period.

The SDCC will notify the community about the full restoration of services through its regular mailing lists.