– Computing and Communications Services
The perimeter firewall is scheduled to be upgraded at 6:00 am, Friday, December 17. The upgrade is required to correct problems with the session counter and a possible memory leak. These problems may have caused the latency and jitter experienced during real time video and audio applications such as streaming, and video and audio conferencing.
The upgrade will take about 60 minutes. Sessions will be lost during this interruption. Internet access will be maintained as connectivity will fail-over to the back-up link.
We apologize for any inconvenience this upgrade may cause.
– Computing and Communications Services
On Tuesday, Dec. 28, 2010 between 8:00 AM and 8:00 PM, CCS is planning to upgrade 2 production SAN (storage) appliances to the latest version of the software, as well as applying a number of patches.
These 2 SAN (storage) appliances being upgraded work as a pair which serves storage to many servers. Each appliance will be failed over to the other while it is being upgraded and patched.
During the upgrade process we need to shutdown RMail and Blackboard. All other services should not be interrupted during the fail over. There is still a small chance that a lock up can occur with the servers, which may result in all the storage becoming unavailable to the clients. This risk is low and we have been preparing the environments thoroughly to reduce this risk.
List of services that may be affected/unavailable include:
– RMail *** Unavailable
– my.ryerson portal *** Unavailable
– eHR *** Unavailable
– RAMSS *** Unavailable
– Library eResources *** Unavailable
– all other applications accessed through the my.ryerson portal *** Unavailable
– RMS
– Alfresco
– Virtual Apps (Citrix)
We apologize for any inconvenience this outage may cause.
– Computing and Communications Services
As of 10:30 AM this morning, the my.ryerson portal, RAMSS, eHR, Library eResource and other applications were returned to service following the outage that began at 9:30 AM.
We apologize for the problems this outage has caused.
-Computing and Communications Services
At approximately 9:30 AM this morning, there was a switch failure within the storage area network that supports many of Ryerson’s core systems.
We are currently working on restoring the systems that have been affected.
The major applications include:
– the my.ryerson portal
– RAMSS
– eHR
– Library eResources
– other applications serviced by the storage area network
We apologize for the problems this outage has caused.
– Computing and Communications Services
CCS has scheduled a reboot of our Internet gateway firewall to correct problems related to high-bandwidth video streaming over CANet. The reboot will occur on Wednesday, Dec. 8, 2010 at 6 a.m. All sessions between the Ryerson network and the Internet will be lost as Internet traffic will be re-directed to a back-up link. The reboot process will take up to 30 minutes.
We apologize for any inconvenience the reboot may cause,
– Computing and Communications Services
At around 12:00 p.m. today two telephone related outages occurred simultaneously and lasted for approximately 15 minutes:
1. Some VoIP phones across campus may have gone off-line. External callers may not have been be able to contact some people on VoIP sets. However, persons with VoIP sets could still call out. Locations that may have been affected are: 415 Yonge St., TRS, CED, DMZ and Theatre School.
2. Call Pilot, the voice mail system, went down momentarily. Callers were not able to leave messages on voice-mail, nor were users able to access their own voice-mail boxes.
Bell Support personnel has been called and the cause of the outage is currently under investigation.
We apologize for the inconvenience.
– Computing and Communications Services
Every month a small number of Ryerson e-mail (RMail) accounts are compromised and used to send bulk junk mail (spam) from Ryerson. As a result the universitys e-mail servers have, for short periods of time, been placed on anti-spam block lists. This means that some servers run by other organizations will not accept Ryerson e-mail.
To limit the impact of compromised RMail accounts, this morning Computing and Communications Services began automated monitoring of mail being sent from Ryerson to detect spam. When outgoing e-mail is flagged as spam, the e-mail will be returned to the sender instead of being delivered. The returned message will have a subject line of “Considered spam, apparently from you: (Ref. ID: xyz)”. The body of the message will include instructions on how to contact the CCS Help Desk. If legitimate mail is flagged as spam please contact the Help Desk to request that the message be released from quarantine and sent on to its intended recipients.
No spam detection service is perfect and I recognize that this change will inconvenience a small number of people. Please accept my apologies in advance for those of you who are affected by this change.
Yours truly,
-Brian Lesser
Acting Director, Computing and Communications Services
Ryerson University
E-mail: blesser@ryerson.ca
