CPK

Service interruptions

A CPK is C&CZ’s way of reporting a problem or service interruption. Follow the mailing list or RSS feed, and check the service interruptions page for live status updates.

A CPK is how C&CZ reports a problem or service interruption. We publish one when something goes wrong, when we need to do planned maintenance, or when we want to let you know about something that affects the services we run.

Note

What’s a CPK? CPK is short for the Dutch C&CZ Probleem Kaart — C&CZ problem card. The name is simply how we’ve always done it, and it has stuck with us ever since.

How to follow CPK messages

CPK messages are first sent to the CPK mailing list — you can (un)subscribe there. You can also follow the service interruption messages via RSS.

When a CPK takes longer to resolve, we publish updates on the service interruptions page.

University-wide interruptions

For Radboud University-wide service interruptions, see meldingen.ru.nl.

No service interruptions.

Resolved

April 2013

CPK#1018 Homeserver bundle failed reboot

The fileserver failed to reboot during the regular Monday morning shutdown schedule. It was possible to gain access to the system console only after having removed all power from the chassis. Snapshots were removed using the rescue reboot but rebooting the machine resulted in a faulty filesystem. We were able to boot the system after all filesystems had been checked offline. These actions resulted in a unusual long downtime.

CPK#1019 Fileserver stack crashed due to failed hard disk

Problem: Crash due to defective disk Solution: Deactivated disk using hot spare and reboot

CPK#1017 Homeserver bundle failed reboot

The fileserver failed the regular Monday morning reboot. Only after a rescue boot and a manual removal of all snapshots rebooting the machine worked.

CPK#1016 Disk server stack offline

Problem: Stack: Crash due to failing disk. Solution: Deactivated disk using hot spare

CPK#1015 Disk server pile offline

Pile did not shutdown properly during weekly reboot due to a kernel panic. Solution: Executed power-cycle of the system

March 2013

CPK#1014 Mail problems after supplying password to phishers

Again a Science user supplied his Science password to phishers. We notice that because Internet criminals use these passwords to get into the Science mail servers (horde webmail, smtp) in order to send spam. PLEASE: do not naively click on a link in an e-mail!

CPK#1012 Disk server pile offline

Was waiting for interactive input after reporting a warning (^d)

CPK#1013 File server miii no private network

While performing maintenance (removing a network card) a network cable was not inserted correctly.

CPK#1011 Network problems due to installation of Matlab R2013a

Yesterday Matlab R2013a has been installed. Today at 13:00 hours many servers started to automatically copy this 5.4 GB to their local disc. Some parts of the network were overloaded by all these copying, which made accessing the network slow for many users. The distribution of this software will now be scheduled to happen over a longer period, primarily outside of working hours.

CPK#1010 More IP addresses for ru-wlan and Science (wireless)

Monday, March 4th 2013 at 18:00 hours, the number of IP numbers that is available in the FNWI buildings for ru-wlan and Science will be doubled. Because ru-wlan moves to a new range, users of ru-wlan will lose connectivity for at most 15 minutes. There was already a plan to replace ru-wlan and Science within the FNWI buildings by the RU-wide Eduroam and ru-wlan, but the wireless network usage has grown so fast that we can not wait for this plan to be realized. Last week some wireless users at times could not even get an IP address, although the lease time had been brought down to 30 minutes. Therefore this temporary measure became necessary on such short notice.