Blackboard may be the last thing that you are thinking of in the early morning between semesters, but just in case here is the full text from Blackboard:
“Subject: Upcoming System Maintenance (Service Impacting)
Date: Tuesday, December 28, 2010
Time: 12:00 AM to 08:30 AM US Eastern Time
Services: Clients hosted at Northern Virginia Data Center 2
As part of the Managed Hosting team’s initiative to improve our environment and take advantage of new technologies, we will be undergoing a project to swap out our existing core switches in both the VA2 and VA3 datacenters. This swap will enable us to upgrade to our vendor’s latest technology switches while expanding our capacity so that we can better support your growth.
The maintenance work is scheduled to happen on Tuesday December 28th from 12:00 – 8:30 AM Eastern Standard Time (EST).
Why is the maintenance window 8½ hours instead of the usual 4 hours?
This project is larger in scale than most of the maintenance work we do during our regular windows. Our standard maintenance generally requires adding or replacing a card or upgrading code whereas this maintenance requires the replacement of both the A & B side switches. While the work itself should not take the full 8½ hours, we have built a buffer into the window to resolve any problems that might arise and/or enact a rollback plan if needed.
Why is the work being done on a Tuesday and not during the Friday morning window?
Based on our maintenance policy, any scheduled non-emergency maintenance that requires more than the four hours allotted during a regular Friday window will be performed during a more appropriate window.
Will my site be offline the entire window?
The Managed Hosting Engineering Teams will take all necessary steps to minimize the impact to clients. However, because the maintenance requires redirecting traffic in addition to physically removing equipment, clients may experience extended periods of latency and/or packet loss at anytime during the entire window. Our recommendation is to notify your end users to prepare for the site to be offline for the full eight and a half hours. They may find the site available sporadically but users should not plan to do any work as it may not be saved if the site becomes unreachable.
Does my institution have to be included in this maintenance?
Yes. As the maintenance is datacenter wide, it will include all clients hosted within the facility.
Will I need to make any changes on my network?
No, there is nothing that needs to be done by your institution and no changes need to be made to your network. There will be no modifications to our current configurations or IP schema during this change.
Blackboard MH Change Management”