Posts Tagged ‘xen’

Server Maintenances this Week: E-Mail and BackupPC

Tuesday, June 17th, 2014

We have scheduled a software maintenance of the D-PHYS mail server for tomorrow, Wednesday, the 18th of June 2014, starting in the late afternoon around 5pm. A downtime of all D-PHYS mail services during the evening will be part of the maintenance. The downtime is expected to take approximately 15 to 30 minutes.

During the downtime sending and receiving e-mails will not be possible and the web mail service will be not available. Incoming mails during the downtime will be delayed.

Additionally there will be a downtime of our “BackupPC” backup service for laptops and lab PCs due to server relocation on Thursday (19th of June 2014) starting around 9am.

Short Mail, License and Condor Server Downtime on Thursday Evening

Wednesday, May 15th, 2013

We will perform a maintenance reboot of several infrastructure servers on Thursday, 16th of May 2013, starting around 5pm. This will cause a downtime of all e-mail related services (receiving + sending mail, accessing webmail and non-cached mails) as well as the license server for IDL, the control server for Condor grid computing, and most hosted virtual machines.

We expect the downtimes to be short and sequential.

Update 17:50: Everything went fine, we’re back to normal.

Mail Server Upgrade on Wednesday, 5th of October

Monday, October 3rd, 2011

On Wednesday, 5th of October 2011, starting at 16:30, we will upgrade the operating system on several servers of our mail server cluster. This will result in temporary unavailability of most e-mail related services we provide: sending and receiving e-mails, mailing lists and webmail access.

Due to the maintenance e-mails may have some lag and arrive a few hours later than usual.

Update, 21:55: Upgrade of the incoming and IMAP/webmail/mailing list servers were successful. Everything is back to normal.

Unexpected Mail and Xen Server Downtimes

Saturday, February 13th, 2010

At around 8am we noticed (different) hardware issues with our SMTP server wiggis as well with one of our Xen hosting servers. This also affected the IDL license server. The problems have been temporarily solved and since approx. 10:30am both systems are working again as before. Expect though maintenance downtimes for those services within the next week.

Unexpected downtime of authentication and printer servers

Monday, September 7th, 2009

A security-update on one of our clusters failed unexpectedly and caused a downtime of our authentication server and printer server which needed manual intervention. All services should be back again by now. We apologize for the inconvenience caused by this. Update 18:00: The thin clients work again, too.

Migration and Downtime of our Authentication Server on Tuesday, 6pm

Monday, December 1st, 2008

On Tuesday, the 2nd of December 2008, beginning at 6pm, we will migrate the services on our current authentication server to our high-availability cluster. During the migration you will not be able to login on any of our managed workstations, home and group drives or web services. Existing login sessions on workstations should survive the downtime, but it is usually better if you log out before migration. Additionally, *.dhcp.phys.ethz.ch dynamic hostnames will not work either.

Update, 22:30: Migration done. Everything should be back to normal.

Update, Wed Dec 03, 09:30: We found and corrected a problem with the web browser proxy.pac.