August 2013

This maintenance is the work rescheduled from July 25, 2013.

Who is affected:
Potentially, all users of CS Department computing and storage infrastructure.

What is happening:
On Thursday, the storage cluster that provides file service for all CS Department public services will undergo upgrades to its network interfaces.

During this maintenance, connections to Samba/CIFS file shares will experience occasional, temporary interruptions. Users may need to re-establish connections to the file share in some cases.

We DO NOT anticipate actual downtime for other services, but since all maintenance involves the risk of broader problems, this announcement serves as a heads-up. In the event of problems with this maintenance, impacts could range up to outages of ALL CS Department public services that rely on the storage cluster (file service, public login hosts, e-mail, web service, etc). Note that wired and wireless networking connectivity will not be affected.

Why is it happening:
This upgrade will provide 10Gbit network connectivity to our storage cluster, getting us one step closer to end-to-end 10Gbit capability for our services.

Update – 14:12 – The upgrade has run into some issues that are resulting in some services being slow to respond or unavailable. We apologize for the trouble, but are working with the vendor presently to get things back in full working order.

Update – 16:40 – All services should be back to normal operation now. Please contact CS Staff if you continue to have problems.