Header Search Widget

IRIS

Instructional & Research Information Systems

Network outage Cory 4th floor on Sep 16

by

Currently power outlets in the 4th flr. restrooms are on a common electrical circuit with power in the 4th communications closet. Space and facilities team would like to shutdown the communications closet for about or less than 30 minutes to move these outlets onto a new circuit.

This will prevent outside areas from accidentally tripping the circuit feeding the communications closet. The network switches serving in the area of 4th floor will be affected by this move. Only users in 4th floor of Cory will be affected by this. Since wireless APs in 4th floor were fed by the switches in that closet, you may experience wireless outages if you are located in 4th floor area.

We have UPS and hopefully will be able to carry the load but you may experience some of intermittent wired and wireless conductivity issues for a short period of time.

If you have any concern, please send email to networks@eecs

Resolved as of 2011-09-16 16:15:00

Mailing List Messages Delayed, Sep 2

by

Beginning around midnight on September 2, our MySQL database server began refusing connections from lists.eecs.berkeley.edu. Since all subscription information is kept in the database, no mailing list messages could be delivered during that time. The database server was reset around 9:30am and all queued departmental email has been delivered at this time (10am). No email should have been lost.

Initial investigation points to the database server intentionally blocking connections due to too many simultaneous requests from lists.eecs. This investigation will continue and the database server will be tuned as needed to prevent a recurrence of this problem.

Resolved as of 2011-09-02 09:30:00

Department website maintenance, Sep 1, 10pm

by

The Department website (www.eecs/www.cs and all hosted virtual hosts) will be down briefly on September 1, 2011 at 10pm for a software upgrade. Apache will be upgraded to version 2.2.20, which fixes a critical issue. See [the original announcement in the Apache mailing list archives](https://mail-archives.apache.org/mod_mbox/httpd-announce/201108.mbox/browser) for details.

Total downtime should be less than 15 minutes.

Resolved as of 2011-09-01 22:32:00

EECS Network Maintenance on Aug 25 at Soda Hall

by

We are continuing to do switch maintenance. The EECS switches(in 4A, 4B, 3B) are located at 4th and north east side of 3rd floor of Soda will experience brief outages on Thursday, Aug 25, 2011 beginning at 6:00a.m. due to network maintenance.

The wired network will be offline and users will experience a brief (couple minutes) outage while the switches are rebooted to apply new firmware. Since wireless networking devices are also fed by that device, wireless network will experience a brief outage as well.

Resolved as of 2011-08-25 06:05:00

EECS Network Maintenance on Aug 19

by

One of uplink 10G connection ports to the campus router was malfunctioning and had been move to the temp port. We have received the replacement module from our vendor for the malfunctioning port in the edge router. Installing the new module will not expect a complete outage, this task should be done less than 5 mins.

If you have any concern, please contact networks@eecs

Resolved as of 2011-08-19 17:02:00