May 22, 2009, 6:00 p.m. - 8:00 p.m.
UITS moved DNS and DHCP servers. Within this two hour window network service will experience brief
intermittent service interruptions impacting D2L, WebAUTH/NetID, Email, and Student Link.
May 19, 2009, 5:00 a.m. - 7:00 a.m.
UITS performed an urgent upgrade on core routers. This maintenance was part of ongoing activity to continue improving the stability and reliability of services. During this two hour maintenance window a number of services may experience a couple of brief intermittent service interruptions which is not expected to last more than 1-2 minutes each. Services included D2L, WebAUTH/NetID, Email, and Student Link.
May 12, 2009, 1:00 a.m. - 4:00 a.m.
A last minute D2L maintenance service was scheduled to ensure stable performance during peak times for the final exams week. During this time, D2L was still working; however, its performance was slow.
May 9, 2009 1:45 a.m. - 2:30 a.m.
D2L was unavailable. This was an unscheduled downtime.
March 15 - April 8 (D2L Email Problems)
- A message that was sent to someone that had set their D2L Email to forward and delete from the Inbox folder may never have been forwarded to the recipient, and will need to be resent. If you were expecting a response from someone during this timeframe and did not recieve it, please resend your message.
- A small percentage of D2L Email went undelivered. Senders were not notified of the undelivered status of these messages; recipients were unaware of the missing messages. These undelivered messages were delivered by 5:00 p.m. on April 9, 2009. However, if the message was delivered to an account that was set to forward and delete from the Inbox folder the first bullet point still applies and the message will need to be resent.
- Some people have received messages in their D2L Email with the subject line: Delivery Status Notification (Delay). Please ignore these messages. They are the result of tests that were run during the troubleshooting of this issue.
March 25, 2009, 8:00 p.m. until 11:00 p.m.
D2L ran slowly. This unscheduled slowness caused the system to become almost unusable.
March 25, 2009, from 5:00 a.m. to 6:00 a.m.
D2L had intermittent access. This was a scheduled service interruption.
March 15, 2009, from 6:30 a.m. to March 16 at 10:00 a.m.
A small percentage of D2L Email was not delivered during this time frame and needed to be resent.
March 15, 2009, from 3:00 a.m. to 6:30 a.m.
There was a problem with heating and cooling in the server room and D2L had to be turned off until it was resolved.
March 13 from 4:00 p.m. to Saturday, March 14, 12:40 a.m., 2009 (8 hours and 40 minutes)
D2L was unavailable. This scheduled downtime was used to makes changes as a result of the previous month's poor performance.
February 27, 2009, from 4:00 p.m. to February 28, 2:00 a.m.
This scheduled downtime was used to ensure D2L is a stable and secure environment. The first two hours were used for scheduled maintenance. However, this downtime was extended by eight hours so that additional steps could be taken to resolve the slow performance that occurred this week. This event is occuring during our regularly scheduled maintenance window (4th Friday night of every month).
February 26, 2009, from approximately 9:00 a.m. to 2:00 p.m.
D2L ran slowly causing the system to become almost unusable.
February 25, 2009, from approximately 6:30 p.m. to 3:30 a.m.
D2L ran slowly causing the system to become almost unusable.
February 21, 2009, from approximately 6:00 to 7:30 a.m.
D2L was unavailable. This was an unscheduled downtime.
February 14, 2009, from approximately 7:30 to 9:00 a.m.
D2L was unavailable. This was an unscheduled downtime.
February 7, 2009, from approximately 3:25 a.m. to 6:20 a.m.
D2L was unavailable. This was an unscheduled downtime.
February 4, 2009, from approximately 10:00 p.m. to 11:45 p.m.
In addition to D2L being unavailable during these 105 minutes, D2L had been running slowly for approximately 4 hours.
January 23, 2009 from 6:00 p.m. to 8:00 p.m.
WebAUTH/NetID database server was scheduled for a restart. Within this two hour window there may be an intermittent service interruption lasting approximately five (5) minutes. Services that may have be affected include but are not limited to: email.arizona.edu (POP, IMAP, SMTP and WebMail), WebAuth, Employee Link, Student Link, webroster, D2L, Blackboard, Caucus, U-System, UACBT, Remedy Help Desk, HPC, or VPN.
January 19, 2009 from 2:30 p.m. to 4:00 p.m.
WebAUTH had intermittent availability, which caused intermittent availability to D2L.
January 10, 2009 from approximately 12:15 p.m. to 5:00 p.m.
WebAUTH had intermittent availability, which caused intermittent availability to D2L. In addition, WebAUTH continued telling some students that their "password will expire in 1969" until mid day on Monday, January 12, 2009.
January 9, 2009, from 4:00 p.m. to 8:35 p.m.
D2L was unavailable due to scheduled downtime. Application patches were applied to correct several bugs that were identified during the fall semester.
December 19, 2008 from 4:00 p.m. to 5:05 p.m.
D2L was unavailable due to scheduled maintenance.
December 18, 2008 from 9 p.m. to 11:00 p.m.
UITS scheduled maintenance to upgrade hardware on a core router. Connectivity from campus to the Internet and back will be affected. Within this two hour window there may be intermittent service interruptions lasting approximately five (5) minutes each.
Services that were affected include but are not limited to: email.arizona.edu (POP, IMAP, SMTP and WebMail), Employee Link, Student Link, D2L, Blackboard, Caucus, U-System, UACBT, Remedy Help Desk, HPC, VPN,
December 18, 2008 from 7:30 a.m. to 8:45 a.m.
WebAUTH was not available. This was not a scheduled outage.
December 10, 2008
It has been discovered that a significant number of email messages were not delivered in a timely fashion. They were delivered on December 10, from 8:00 p.m. to 8:30 p.m. Some of the messages were originally sent as far back as November.
December 05, 2008 from 2:00 p.m. to 2:40 p.m.
A problem with WebAUTH caused service interuptions for D2L, Employee Link, Student Link, Webmail, and many other systems. This was not a planned outage.
December 03, 2008 from 11:00 p.m. to 11:15 p.m.
UITS performed an emergency reboot of a core router. This prevented access to D2L, Webmail, Student Link and many other services. This was a planned outage.
November 30, 1:00 p.m. to December 01, 11:00 a.m.
An uninteneded consequnce occurred from the planned outage that happened just prior to this time. This affected approximately 25% of the off campus users on an intermittent basis during this timeframe. This was not a planned outage.
November 30, 2008 from 9:00 a.m. to 1:00 p.m.
Intermittent network availability caused several systems to be unavailable including: D2L, Employee Link, Student Link, WebAuth, and WebMail. This was a planned outage.
November 23, 2008 from 6:00 a.m. to 10:00 a.m.
Intermittent network availability caused several systems to be unavailable including: D2L, Employee Link, Student Link, WebAuth, and WebMail. This was a planned outage.
November 21, 2008 from 6:00 p.m. to 22, 3:00 a.m.
Intermittent network availability caused several systems to be unavailable including: D2L, Employee Link, Student Link, WebAuth, and WebMail. This was a planned outage.
November 21, 2008 from 4:00 p.m. to 5:05 p.m.
D2L was unavailable for regularly scheduled maintenance.
November 16, 2008 from 8:00 p.m. to 12:00 p.m. (Midnight)
Intermittent network availability caused several systems to be unavailable including: D2L, Employee Link, Student Link, WebAuth, and WebMail. This was a planned outage.
November 6, 2008 from 11:00 a.m. to 11:50 a.m.
Service ran slowly enough that the system was unusable. This was not a planned outage.
October 24, 2008 from 4:00 p.m. to 5:15 p.m.
D2L had intermittent availability during our regularly scheduled maintenance window (4th Friday night of every month).
October 24, 2008 from 2:00 a.m. to 11:55 a.m.
D2L experienced an unplanned outage. There was a problem with the WebAUTH integration.
September 26, 2008 from 4:00 p.m. to 8:00 p.m.
D2L had intermittent availability during our regularly scheduled maintenance window (4th Friday night of every month).
September 11, 2008 from 9:45 a.m. to 2:40 p.m. and again from 3:15p.m. to 4:05p.m. (~4 hours and 45 minutes in total downtime)
Almost all browser connections timed out before loading d2l pages due to system configuration issues. This was not a planned outage.
September 2, 2008 from 12:45 p.m. to 2:00 p.m (~1 hour and 15 minutes)
D2L experienced an unplanned outage.
During the first week of the Fall 2008 semester there was a problem with D2L Email.
If you saw an error message when you clicked send then the email was not delivered even if it appeared in your sent mail. If you saw this error message then you will need to resend your email. This issue affected a small percentage of all emails sent and was resolved by the end of the week.
August 25, 2008 from 4:15 a.m. to 7:20 a.m. (3 hours and 5 minutes)
D2L was unavailable. This was not a planned outage.
August 20, 2008 from 9:20 a.m. to 9:50 a.m. (30 minutes)
D2L experienced several service interruptions.
August 18, 2008, 8:50 a.m. to 8:55 a.m. (5 minutes)
D2L experienced several service interruptions.
August 18, 2008, 10:00 a.m. to 10:05 a.m. (5 minutes)
D2L experienced several service interruptions.
August 15, 2008, 10:45 to 11:00 a.m. (15 minutes)
D2L experienced several service interruptions.
August 11, 2008, 10:30 a.m. to 12:50 p.m. (2 hours and 20 minutes)
There was a problem with the university's network router system and how it was working with WebAUTH services. This was not a planned outage.
July 30, 12:25 p.m. to 12:35 p.m., 2008 (10 minutes)
D2L was unavailable due to a problem with an application server. This was not a planned outage.
July 11, 4:00 p.m. to 10:45 p.m., 2008 (6.75 hours)
D2L was unavailable due to a hardware upgrade. This was a planned outage.
June 2, 2008
Cox Cable ran several tests that might have affected access of some users to the UA WebAuth system. WebAuth is required to access several systems on campus, including UA email, D2L, and StudentLink. This means that the problems users are having are not a consequence of D2L malfunctioning--nonetheless they are not able to access D2L course sites. This might have affected a student's ability to complete activites in PreSession and Summer Session I course sites.
May 25, 7:00 p.m. to May 26, 8:00 a.m., 2008 (13 hours)
D2L was unavailable due to a complication with a log on the application server. This was not a planned outage.
May 23, 5:00 p.m. to May 24, 8:00 a.m., 2008 (15 hours)
D2L was unavailable for a software upgrade. This was a scheduled outage.
May 22, 2008
D2L was unavailable from 4:00 a.m. to 8:20 a.m. so that a hardware alteration could be done in preparation for the software upgrade on May 23. This was a scheduled outage, but it had to be extended by 80 minutes.
May 14, 2008
From approximately 7:00 a.m. until 9:45 a.m., D2L was intermittently unavailable. This was not a planned outage.
April 16, 2008
The University campus experienced electrical power instability throughout the day on Wednesday, April 16, 2008. As a result, you may have noticed sporadic and intermittent delays or outages with the D2L system.
April 2, 2008
Downtime completed successfully on April 2, 2008 between 6:00 and 6:15 AM.
March 28, 2008
From 4:00 p.m. to 4:30 p.m. on Friday, March 28, D2L was unavailable during a scheduled maintenance window. Several Microsoft security patches were successfully applied.
March 18, 2008
From approximately 7:00 a.m. until 7:25 a.m., D2L was unavailable. This was not a planned outage.
March 11, 2008
From 5:00 a.m. to 7:00 a.m., UITS performed maintenance on the networking infrastructure. This may have impacted access to D2L. Other systems that were affected include, but were not limited to:
email.arizona.edu (POP, IMAP, SMTP, and WebMail)
FRS
SIS
WNS
March 4-5, 2008
From approximately 11:00 p.m. on March 4th to 7:00 a.m. on March 5th, there was a system problem that prevented the viewing of attachments as well as the downloading and uploading of files to and from Dropbox folders. A hot fix was applied and the application pools were recycled.
February 25, 2008
D2L was unavailable from approximately 12:50 p.m. to 1:25 p.m. We were able to resolve this issue with the assistance of the software vendor. This was not a scheduled outage.
January 26, 2008
D2L was unavailable from approximately 8:00 to 8:05 a.m.
January 25, 2008
D2L was unavailable from 6:00 p.m. until 12:00 midnight while UITS performed maintenance on the systems that support the NetID authentication system.
January 18, 2008
D2L began to perform slowly at 12:45 p.m. This lasted for approximately 90 minutes. In addition, the servers were restarted at 2:50 p.m., which caused D2L to be unavailable for 3-5 minutes.
January 11, 2008
D2L was unavailable from 4:00 p.m. on January 11 to 2:00 a.m. January 12 (10 hours). D2L was upgraded from software version 8.1 to 8.2. This was a scheduled outage.
December 27, 2007
The University's WebAuth system was unavailable from 5:00 p.m. to Midnight while UITS performed maintenance work. This was a planned outage and impacted access to D2L.
December 26, 2007
UITS reported network traffic interruptions that created intermittent access to D2L and other University systems.
December 21, 2007
D2L was unavailable From 7:05 a.m. to 7:20 a.m. and then again from 4:00 p.m. to 4:15 p.m. while we installed new electrical equipment for the D2L servers. The University's WebAuth system was unavailable from 11:00 a.m. to approximately 1:00 p.m. This impacted access to D2L.
December 19, 2007
D2L was unavailable from 6:00 a.m. to 8:50 a.m. while we installed new Student Information System/D2L integration components.
December 4, 2007
The changes we made on Tuesday, December 4th have increased performance. The Grade book is still running slower than we would like for instructors with a class over 200 students. We are continuing to monitor this issue in conjunction with the vendor in hopes of further tweaking performance. D2L performed poorly on Monday, December 3, from 11:00 a.m. to 4:00 p.m. and again on Tuesday, December 4, from 11:00 a.m. to 11:30 a.m.
December 4, 2007
D2L experienced slow performance and intermittent outages. We continue to work this issue with all available resources and in conjunction with the vendor. We are currently testing a possible solution and hope to have this resolved as quickly as possible.
November 26, 2007
Due to a problem with the Log In process D2L was not available from 11:00 a.m. to 1:15 p.m. on November 26, 2007. We were able to resolve this issue with the assistance of the software vendor.
November 11, 2007
D2L was unavailable from approximately 5:15 a.m. to 10:20 a.m. The problem was attributed to database logs being filled which prevented D2L from functioning.
November 8, 2007
The Grade Quiz function was unavailable from approximately 10:00 p.m. Thursday, November 8th to 10:45 a.m. Friday, November 9th. This did not affect students' ability to complete quizzes, nor did it result in any lost attempts or question answers.
October 26, 2007
D2L was unavailable Friday from 4:00 p.m. to 4:30 p.m. for regularly scheduled maintenance. The regularly scheduled maintenance was completed successfully.
October 17, 2007
D2L performance was sporadic from approximately 11:15 a.m. to 11:30 a.m.
October 8, 2007
D2L performance was sporadic from approximately 12:12 p.m. to 12:40 p.m. D2L was not available from 12:40 p.m. to 12:44 p.m. during a server restart.
September 28, 2007
D2L was unavailable Friday from 4:00 p.m. to 4:40 p.m. for regularly scheduled maintenance. The regularly scheduled maintenance was completed successfully.
September 10, 2007
D2L was unavailable from approximately 11:25 p.m. until 11:45 p.m. This was not a planned outage.
September 6, 2007
D2L was unavailable from approximately 5:45 a.m. until 8:05 a.m. This was not a planned outage.
August 31, 2007
Access to D2L was intermittent from 6:00 p.m. until 12:00 midnight while UITS performed maintenance on the storage network that supports many university systems. During this maintenance time the following services were unavailable:
- WebAuth (preventing access to D2L)
- Email.arizona.edu (SMTP, POP, IMAP, and WebMail)
- U System
- Matrix (Cosmos)
- UAWifi
August 22, 2007
We observed some slow performance issues with the applications server from 2:50 p.m. to 2:55 p.m. The server was restarted. D2L downtime was approximately four minutes. We are working with the vendor to resolve these issues. We will post more information as it becomes available.
August 14, 2007
The University of Arizona's network incurred several network interruptions from 1:20 p.m. until 1:50 p.m.. This impacted access to WebAUTH/NetID, which impacts access to D2L. The ability to log into D2L was sporadic during this period.
July 27, 2007
The D2L scheduled downtime was completed successfully at 8:20 p.m. D2L is fully operational. Security patches were applied. Upgraded to D2L version 8.1.3.
July 13, 2007
CCIT scheduled maintenance from 5:00 p.m. until 7:00 p.m. on some of the storage arrays. WebAuth and WebMail experienced short, temporary service interruptions during this time frame. This may have impacted access to D2L.
June 29, 2007
The scheduled downtime for D2L was completed successfully and D2L is fully operational. Security patches were applied.
