Intermittent Network Disruptions: Saturday, April 20, 4 PM

Posted on April 25, 2013 by Brian Lesser
Due to the gradual degradation in performance of a firewall, the following areas have experienced very brief network interruptions:
  • Admissions Administrative Network
  • Architecture
  • Architecture Administrative Network
  • Arts
  • CCS
  • Civil Engineering
  • DMZ
  • Docutech
  • EPH Academic Network
  • GCM
  • ILC Administrative Network
  • JOR Academic Network
  • KHE Academic Network
  • KHE Administrative Network
  • KHS Administrative Network
  • KHW Administrative Network
  • Mechanical Engineering
  • Physics
  • POD 
  • VIC Administrative Network
The problem has resulted in Google Drive synchronization failures and very brief problems accessing other services.
We are working with the firewall vendor to resolve the problem and plan to upgrade the firewall firmware at 6 AM Friday April 26, 2013.
Please accept our apologies for this service disruption and the problems it is causing.
-Computing and Communications Services
Posted in Firewall, network | Comments Off on Intermittent Network Disruptions: Saturday, April 20, 4 PM

Google Calendar Service disruption: Tuesday, April 23, 2013 3:22 AM – 3:48 AM

Posted on April 23, 2013 by Casey Carvalho
Google Calendar experienced some problems this morning, from approximately 3:22 AM to 3:48 AM.   During this period, some users may have seen error messages and/or other unexpected behaviour.
-Computing and Communications Services
Posted in Google Apps | Tagged | Comments Off on Google Calendar Service disruption: Tuesday, April 23, 2013 3:22 AM – 3:48 AM

Scheduled sharedata service disruption: Friday, April 19, 2013 11:00 PM – 11:10 PM

Posted on April 19, 2013 by Casey Carvalho

The disk storage capacity on the CFAPS sharedata server needs to be increased. We expect to add the additional storage without any service disruption, but a 5 minute interruption of the S: drive services may be required.  The change will be carried out tonight, Friday April , 2013 starting at  around 11:00 PM.

We apologize for any inconvenience this may cause.

-Computing and Communications Services

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Network Service Disruption in TRS & YDI – Wednesday, April 17 2013 6:54 AM – 7:15 AM

Posted on April 17, 2013 by Casey Carvalho

A network multicast storm in the Ted Rogers School of Management caused a link between TRS and the POD building to go down.   This link outage affected services in YDI and TRS this morning from approximately 6:54 AM – 7:15 AM.

Please accept our apologies for the disruption in service.

-Computing and Communications Services

Posted in network | Comments Off on Network Service Disruption in TRS & YDI – Wednesday, April 17 2013 6:54 AM – 7:15 AM

Google Apps Problems – Wednesday, April 17, 2013 8:20 AM – 10:00 AM

Posted on April 17, 2013 by Brian Lesser
Google Apps has had various problems this morning including inability to access GMail for a period of time. The problem appears to have started at approximately 8:20 AM. Some people report they still cannot access some Google Apps. If you have already logged into GMail it appears to still be functioning as of now (9:00 AM).
We are trying to contact google support to address the issue.
Update 9:21 AM: Google has updated their status page with more information. Click on the small dots under today’s date: http://www.google.com/appsstatus
Update 10:57 AM: Google reported at 9:51 that service was being restored. Service appeared to be back for everyone by approximately 10 AM.
-Computing and Communications Services
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Wireless Access Connection Problem – Friday, April 12, 2013 5:45 PM to 6:15

Posted on April 12, 2013 by Brian Lesser

At approximately 5:45 PM one of the servers that handles wireless login requests stopped functioning. The server was restarted and service returned to normal by 6:15 PM. During the thirty minute outage no new connections to Ryerson’s wireless network were possible. There was no impact on people who were already connected. We are investigating the cause of the outage.

Please accept our apologies for the outage and the problems it has caused.

– Computing and Communications Service

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Intermittent LDAP authentication failures – Friday, April 12, 2013 10:28 AM AM

Posted on April 12, 2013 by Casey Carvalho

One of the LDAP servers used to authenticate users logging in to my.ryerson, Blackboard, eHR, Confluence, Jira and other applications experienced intermittent problems related to the amount of memory available (Java Virtual Machine heap size).  This caused an intermittent response issue for these applications.    The server has been taken out of the load balanced cluster of ldap servers.   We are working with Oracle to tune the JVM heap size and resolve the issue.

We apologize for the service disruption.

– Computing and Communications Services

Posted in Blackboard, eHR, eResources, my.ryerson | Comments Off on Intermittent LDAP authentication failures – Friday, April 12, 2013 10:28 AM AM

Google Drive iOS App update causing login problems: Tue. Apr 9, 2013

Posted on April 10, 2013 by Casey Carvalho

The latest Google Drive application update from Google on Monday, April 8, 2013  introduced a login problem for some users with iOS devices.   The new Google Drive app version is 1.3.0.  Users are reporting that they are unable to navigate past the login screen.  Ryerson users will see our CAS login screen without the username and password boxes.   Instead, an “Application Not Authorized to Use CAS” message will be displayed.  Google is aware of the issue and is working on a fix

Please accept our apologies for the problems this outage is causing.

-Computing and Communications Services

 

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Intermittent LDAP authentication failures – Wedn., March 27, 2013 8:10 AM

Posted on March 27, 2013 by Casey Carvalho

A recently introduced LDAP server used for authentication experienced intermittent problems related to the JVM heap size.  This caused an intermittent response  issue for various applications, including my.ryerson, Blackboard, eHR, Confluence, Jira and others.   We are working with Oracle to tune the JVM heap size and resolve the issue.

We apologize for the service disruption.

– Computing and Communications Services

Posted in Blackboard, eHR, eResources, LDAP, my.ryerson | Comments Off on Intermittent LDAP authentication failures – Wedn., March 27, 2013 8:10 AM

CAS – Central Authentication System – Service disruption, March 25, 2013 11:35 AM – 12:30 PM

Posted on March 25, 2013 by Jim Buchanan

CAS, the Ryerson Central Authentication system was unavailable from 11:35 AM to 12:30 PM on Monday, March 25, 2013.

This was due to an issue with a database server file system.  The problem is being investigated by CCS.

Due to this outage, users were not be able to log on to Ryerson systems such as my.ryerson.ca, Blackboard, eHR, RAMSS and Google Apps.

Please accept our apologies for the problems this outage caused.

-Computing and Communications Services

Posted in Blackboard, CAS, eHR, Google Apps, my.ryerson, RAMSS, RMail | Tagged , , , , | Comments Off on CAS – Central Authentication System – Service disruption, March 25, 2013 11:35 AM – 12:30 PM