High Firewall CPU Utilization Affecting OGF and SAS Services – 8:30 am, May 08, 2012

Posted on May 9, 2012 by

The data centre firewall in front of SAS, OGF and HR systems is currently experiencing high CPU utilization, over 90%. This may be increasing the response times for users trying to access these systems.

The problem has been identified. There is an inherent memory leak in the code level and will need to be upgraded.   CCS continues to monitor the situation.  To mitigate the problem, the back-up firewall will be upgraded to the new code and “flipped” into production at off production hours.

We apologize for any service disruption.

Computing and Communications

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Webmail service disruption: Tuesday, May 1, 2012: 16:01 PM – 16:16 PM

Posted on May 1, 2012 by Casey Carvalho

A problem with Rmail caused a partial service outage with Webmail,  today, Tuesday May 1st, between 16:01 PM.- 16:16 PM.   During this period, new connections to Webmail were not successful.    Existing sessions were not affected by the problem.

We apologize for the service interruption.

– Computing and Communications Services

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Search.ryerson.ca service outage – Wednesday April 25, 2012

Posted on April 25, 2012 by Jim Buchanan

The service that provides search functions for www.ryerson.ca Web sites failed this morning.

The Google Mini Search Appliance that provides the service appears to have gone down at roughly 9 AM this morning and was restarted at 10 AM. While the search feature on www.ryerson.ca is working again, it will be some time before the system fully recovers and returns search results quickly.

Please accept our apologies for the service disruption.

-Computing and Communications Services

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TRS-YDI Wireless Controller Fail-Over – 2012-April-20 9:30am

Posted on April 20, 2012 by

Due to a problem with the WiFi network in TRS and YDI some people may find the WiFi network has stopped working and have to login again.

We are investigating the problem. However, it appears the network interface to the active TRS/YDI controller or the interface on the distribution switch failed. The failure caused the backup controller to take over. All access points failed over to the backup controller automatically and instantly.

We apologize for the service interruption.

– Computing and Communications Services.

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Groupwise Post Office 3 outage: Friday, April 20 2012 05:00 AM – 08:00 AM

Posted on April 20, 2012 by Casey Carvalho

One of the Groupwise post office servers, PO3, did not complete the regular maintenance, scheduled every night for 5AM and had to be rebooted at approximately 8:00 AM this morning.   The outage affected academic schools.

Please accept our apologies for the disruption in service.

-Computing and Communications Services

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Groupwise Webmail service outage – Thursday, April 19 2012 12:50 PM – 13:10 PM

Posted on April 19, 2012 by Casey Carvalho

The Groupwise server that provides Groupwise Webmail services rebooted at approximately 12:50 PM today.  Service was restored at 13:10 PM.   A short delay in mail delivery could also have been experienced.  We are still investigating the cause of the outage.

Please accept our apologies for the disruption in service.

-Computing and Communications Services

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Webmail service disruption: Tuesday, April 17 2012: 8:40 AM – 8:50 AM

Posted on April 17, 2012 by Casey Carvalho

A problem with one of  the Webmail front end servers  caused a partial service outage with Webmail,  today, Tuesday April 17, starting at approximately 8:40 AM.  Full service was restored around 8:50 AM.   During this brief outage, users trying to login to Webmail could be presented with the following message:

Mail server unavailable. Administrator, check server log for details.

We apologize for the service interruption.

– Computing and Communications Services


							

	
			

									
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UPDATE: DNS problem affecting e-mail delivery to Ryerson – Thursday, April 12 2012


			

				Posted on April 12, 2012 by Casey Carvalho			


					

				
The DNS appliance’s vendor recommended some manual changes to be done on both the internal and external DNS servers to force the synchronization of data.  These changes will take an hour or two to be propagated through external DNS servers.   There should be a noticeable improvement as as the  changes progress.


We apologize for the service interruption.


– Computing and Communications Services


++++++++++++++++++++++++++++++++


We have received reports that e-mail delivery from some external sites to Ryerson failed due to a DNS (Domain Name Service) lookup resolution failure.  Technical Support is troubleshooting the issue with the DNS appliance vendor.


Please accept our apologies for the disruption in service.


-Computing and Communications Services

							

	
			

									
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Some Users Could Not Reach Services at www.library.ryerson.ca and ezproxy.lib.ryerson.ca – 16:30, Wed., April 11, 2012


			

				Posted on April 11, 2012 by 			


					

				
At approximately 16:30 today the domain names www.library.ryerson.ca and ezproxy.lib.ryerson.ca became unresolvable. External and internal users were having different problems. The records for www.library.ryerson.ca were missing from the database, at this time we are unable to find a cause for this deletion. The information was re-entered the information and manually push it to all internal and external nameservers. The names were resolvable at approx 18:30.

							

	
			

									
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Groupwise partial service outage: Wednesday, April 21 2012 06:30 AM – 08:20 AM


			

				Posted on April 11, 2012 by Casey Carvalho			


					

				


The GroupWise post office that provides services to most admin departments, including HR,  failed to complete its regular overnight maintenance cycle and had to be rebooted this morning.    Services were impacted from 6:30 AM to 8:20 AM.


Please accept our apologies for this service disruption.


-Computing and Communications Services



							

	
			

									
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