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Network Outage Today (April 28)

Friday, April 28, 2017 - 4:05pm

I apologize for the service outage this afternoon. I was making network changes and created a route loop that caused our primary and secondary networks to go into a disabled state. This outage took longer than normal to resolve because I needed to contact campus networking staff to bring the disabled ports back online.

I obviously need to make some changes to our network plans. There are two changes I can think of right now:

1) I will look into making changes to our network to make sure I can immediately enable any ports that go offline.

2) I will move this work to Sunday mornings until we are confident it will not cause outages.

Again, I apologize for this disruption to your institutions.

Brandon Gant
CARLI

SFX Downtime this Sunday, April 23rd

Monday, April 17, 2017 - 1:27pm

The Production SFX service will be moved to a new operating system between 6AM and 10AM this Sunday, April 23rd.

I expect the service to be down for less than an hour during this maintenance window.

Brandon Gant
CARLI

VuFind 0.6 Outage this Sunday, April 9th

Wednesday, April 5, 2017 - 12:59pm

An updated server used behind-the-scenes with VuFind 0.6 and VuFind 3.x will be put in place between 6AM and 10AM on Sunday, April 9th. The outage should be less than 20 minutes if everything works as expected. If not, we may remove the new server and put the older one back in place.

Brandon Gant
CARLI

Dropping Network Connections

Wednesday, March 15, 2017 - 3:15pm

This afternoon I was doing maintenance on redundant security devices. The devices are supposed to preserve network connections when one device in the pair is restarted, but I have learned that we are dropping those connections.

I am holding off on further maintenance until later tonight. I will also investigate why connections are not being preserved. I apologize for kicking you off of our servers twice this afternoon.

Brandon Gant
CARLI

Patching and Rebooting Production Servers (Mar 5th)

Monday, February 27, 2017 - 9:33am

This Sunday, March 5th between 6AM and 10AM, Production servers will be patched and rebooted. Most servers will be back online quickly, but Voyager and Oracle will be down for about a half-hour.

Brandon Gant
CARLI

UIUC Network Outage Today (Feb 24)

Friday, February 24, 2017 - 2:01pm

At around 11:42AM today (Friday, Feb 24) the UIUC campus lost their network connection between the Internet and their firewalls. The outage lasted around 11 minutes and they are currently working with their firewall vendor to determine the cause. This outage affected all UIUC campus services including CARLI servers.

Brandon Gant
CARLI

Network Firmware Upgrades this Sunday, Jan 15

Thursday, January 12, 2017 - 8:18am

This Sunday, January 15 starting at 6:30AM, campus networking staff will be upgrading the firmware on a large number of network devices. This includes the devices in our Production Data Center. Since we have redundant routers and switches, I am not expecting any downtime during this work but I wanted to make you aware of it just in case.

Brandon Gant
CARLI

Z39.50 to Voyager should work now

Monday, December 5, 2016 - 1:07pm

All of the Z39.50 problems should be fixed now and the z3950.carli.illinois.edu service should be back online.

If you are still having any issues with Z39.50, please contact support@carli.illinois.edu to let us know.

Thanks,
Brandon Gant
CARLI

Z39.50 Access Offline

Sunday, December 4, 2016 - 7:05pm

We are investigating a problem with Z39.50 to Voyager and have turned off Z39.50 to stabilize the server.

Once we figure out the cause of the problem, we will turn Z39.50 access back on and see if the problem is resolved.

Brandon Gant
CARLI

Voyager Maintenance this Sunday, Dec 4th

Thursday, December 1, 2016 - 9:28am

This Sunday, December 4th between 6AM and 10AM, the Production voyager.carli.illinois.edu server will go offline briefly to be moved behind a new network security device. Downtime should be around a half-hour.

Brandon Gant
CARLI

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