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en:aktuelles [2021-07-29 15:42]
Thomas Thiel
en:aktuelles [2021-12-02 09:35] (current)
Ignatios Souvatzis /home/stud replacement
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 Here you will find recent Information and service indications for our infrastructure. If you are interested to receive these informations via email, please subscribe to [[https://lists.iai.uni-bonn.de/mailman/listinfo.cgi/gsg-op|gsg-op@lists.iai.uni-bonn.de]]. We are using this list to announce technical issues, maintenance windows and the results of these proceedings. Here you will find recent Information and service indications for our infrastructure. If you are interested to receive these informations via email, please subscribe to [[https://lists.iai.uni-bonn.de/mailman/listinfo.cgi/gsg-op|gsg-op@lists.iai.uni-bonn.de]]. We are using this list to announce technical issues, maintenance windows and the results of these proceedings.
 ---- ----
-===== 2021-07-27unscheduled downtime of BigBlueButton, a b-it fileserver and some VMs =====+===== 2021-12-06 19:00 to 2021-12-07 09:00: works on /home/stud =====
  
-**Update 15:402021-07-29:** As we can already see by now, the restore will take until tomorrow, there are just too many small files inside the unix homes.+To facilitate enlargement of /home/stud it won't be available in 
 +the night from
  
-**Update 9:51, 2021-07-29:** At this moment we already restored 4.5 of 7.5 TB of data (last backup ran at 2021-07-27 01:56:21to the B-IT fileserver. We are hoping to finish the restore until the end of this dayso that we should be able to restore the availability of this service tomorrow morning at the latest.\\+        Mon, 6th of December to Tue, 7th of December, 2021 
 + 
 +Also, systems using this set of home directories may need a reboot 
 +(login-stud, pool-u..., bitcuda-NN, ...) 
 + 
 +Last copy of data from the old /home/stud: Dec 6th, 1900 CET. 
 +Please stop long-running processes before that. 
 + 
 +We aim to provide availability of the new /home/stud  on Dec 7th, 0900 CET 
 + 
 + 
 +---- 
 +===== 2021-11-11: Discontinuation of the "Azure Dev Tools for Teaching" Program ===== 
 + 
 +Due to new licensing provisions, we are no longer able to offer the “Azure Dev Tools for Teaching” licensing program. Via the program formerly known as "Microsoft Imagine" or "Microsoft Developer Network Academic Alliance (MSDNAA)", students and teaching staff in computer science and B-IT were able to access licensed MS software free of charge.\\
 \\ \\
-**Update 11:09, 2021-07-28:** most VMs are back online againThe UNIX Home Servers at b-it have to be restored from tapewhich will still take considerate amount of time.\\+---- 
 +===== 2021-10-23BigBlueButton Maintenance ===== 
 + 
 +**Update:** the Upgrade was successfully completed. 
 + 
 +Starting at around 11:00 amwe will undergo comprehensive upgrade of the entire BBB environment to the latest software versions. Since a long overdue restructuring of the load balancing and DB backend systems is pending at the same time, there is unfortunately a longer downtime. Basic functionalities may also be available again at short notice, but the cluster will not be able to develop its full scope of services until late in the afternoon. We expect the work to be completed around 5:00 p.m.\\
 \\ \\
-**Update 22:26, 2021-07-27:** the BigBlueButton Service is fully functional again.\\+---- 
 +===== 2021-10-01: BigBlueButton slides and whiteboard functionality available again ===== 
 + 
 +a workaround for the problem has just been implemented; Currently running 
 +BBB meetings will not benefit from this yet, but the following ones 
 +will once again have slides and whiteboard functionality. 
 + 
 +Please note that the workaround may fail on some systems due to 
 +cached redirects; if this happens on your browser, please clear all of your browser caches that are associated with the BBB nodes 
 +bbb-node*.informatik.uni-bonn.de or use a alternative browser until the redirects 
 +in your standard browser have expired. 
 + 
 +Thus, the full functionality of the BBB should be restored for the time being.\\
 \\ \\
 +----
 +===== 2021-10-01: BigBlueButton service without slide functionality =====
 +
 +Probably as a result of yesterday's problem, no more slides can currently be displayed in the BBB. Thank you to everyone who reported the problem to us, we are already busy solving the problem. \\
 +\\
 +
 +----
 +===== 2021-09-30: BigBlueButton service back online =====
 +
 +Our BigBlueButton Instance is back online.\\
 +\\
 +
 +----
 +===== 2021-09-30: BigBlueButton service temporarily unavailable =====
 +
 +The load-balancing layer of our BigBlueButton Instance is temporarily unavailable. We are working on the problem.\\
 +\\
 +
 +----
 +===== 2021-09-17: overleaf back online =====
 +
 +Overleaf is once again up and running. All Accounts need to be re-created due to the Database-Errors.\\
 +\\
 +
 +----
 +===== 2021-08-06: unscheduled downtime of overleaf =====
 +
 +Due to inconsistencies in the DB backend, the overleaf instance of the C.S.Dept. is down at the moment.\\
 +\\
 +
 +----
 +===== 2021-07-27: unscheduled downtime of BigBlueButton, a b-it fileserver and some VMs =====
 +
 +** Update: All central services are by now fully available again. **
  
 Due to problems with the storage backend of an older virtualization cluster, there are currently massive problems when using some VMs, in particular: Due to problems with the storage backend of an older virtualization cluster, there are currently massive problems when using some VMs, in particular: