On Monday, 3 February, maintenance work affecting SEALS Library services will occur, starting at 4:00 PM. Catalogue, issuing and WAM proxy services will be unavailable for some hours while software is updated on the servers that provide those services.
During the Tuesday, 4 February maintenance window, maintenance work affecting a number of services will occur, starting at 5:30 PM and being completed before midnight. The following work is planned:
Access switches: software will be updated on the network switches in almost all buildings on campus. All network services (including Wi-Fi and IP telephones) will be disrupted in those buildings. It is expected that each building will have an outage of around 15 minutes.
Server software updates: software on the servers which provide the following services will be updated, resulting in outages of up to 15 minutes per server:
DNS
DHCP
NTP
RT
Web proxies
Registration system
Incoming e-mail
Outgoing e-mail
IMAP e-mail mailboxes
Mailing lists
SMS
Provisioning (web proxy autodiscovery)
Wi-Fi and VPN authentication
Network graphs
Network monitoring
Terminal Four content management system
RU Single Sign-On system
Main web server (www.ru.ac.za, etc)
University administration and meal booking systems
SEALS Library consortium services (Vital repository only)
Network printing services (iPrint/PaperCut)
File servers/home directories (gnu, serval, studentfiles)
PC login service for public labs
Archibus
While we try to publish a list of all service-affecting work here in advance, the list should not be considered exhaustive and other low impact work may also be undertaken during the maintenance window.
This maintenance work is being undertaken in the ITSC-approved scheduled maintenance window.