** Maintenance Announcement – No service interruption anticipated **
We will be applying a configuration change to our iSCSI switches that support our StoreVirtual SAN. This is the storage network that back’s our VMware infrastructure.
We do not anticipate any service interruption. Our switching is redundant, we will only change the switches one at a time, and the changes should not be service interrupting.
Start: 04/16/2013 10:00 PM
End: 04/16/2013 11:00 PM
If you have questions or concerns about this maintenance, please contact the Shared Infrastructure Group at osu-sig (at) oregonstate.edu or call 737-7SIG.
Some people received SSL certificate expiration errors when they visited sites hosted at https://secure.onid.oregonstate.edu between April 10th 5pm and April 11th 9:30am. An updated SSL certificate was installed on only one of the two authentication servers, so about half the people visiting the sites received a warning message that the certificate had expired.
The services affected included:
The problem with Banner address updates has been corrected.
Catherine
Catherine Williams Associate Director, Enterprise Computing Services Oregon State University 224B Milne Computer Center Corvallis OR 97331 541-737-2718
We are currently experiencing a problem with updating addresses in Banner. We are working with the vendor and we hope for a solution early this afternoon.
Catherine
Catherine Williams Associate Director, Enterprise Computing Services Oregon State University 224B Milne Computer Center Corvallis OR 97331 541-737-2718
Notice of Unplanned Outage
Network Engineering is aware that some clients are having issues connecting the wireless network. We are investigating the issue and hope to have a resolution shortly.
Tony Brock Network Services
If you have questions or concerns about this outage, please contact Network Engineering at net (at) oregonstate.edu or call 737-HELP.
Primary Contact: burksj, joel.burks@oregonstate.edu
We will be switching over from SUP 5 to SUP 6 on DataCenter1. This should not cause an outage since we have redundant SUPs in the chassis as well as a redundant switch.
One of OSU’s Internet providers, NERO (Network for Education and Research in Oregon), will be performing maintenance on their Optical Backbone starting at 3:00 am on Monday, April 8th. It is unlikely that internal or external Internet traffic will be meaningfully impacted during this time, although users could experience slow connections should rerouted traffic saturate the network.
This morning at 7:35 we had another unexpected reboot of an Exchange server and the databases successfully failed over to the remaining servers. Our core dump analysis indicates that the failure was in the TCP/IP Driver. We have reviewed all the updates that were applied on 3/31/2013 and only one update (KB2790655) modified this driver. We have uninstalled the updated driver from all Exchange servers and they are pending reboot. We plan to reboot the Exchange systems tonight starting at 9:30 unless they expectedly reboot prior to this time. The primary impact of these reboots will be the disconnection of OWA sessions.
Cary Shufelt
We had another unexpected reboot an Exchange server at 7:30 this evening. As an emergency measure, I am uninstalling Exchange update that was applied to the Exchange servers yesterday. This will result in unexpected disconnections for users using OWA.
Cary
(My working hours are 7am – 5:30 pm, Tuesday – Friday) ———————————————————- Cary Shufelt, MCSA, MCSE Windows Infrastructure Architect Network Engineering B211 Kerr Admin Bldg Oregon State University Corvallis, OR 97331 541-737-9420
One of the redundant exchange servers unexpectedly rebooted at 2:00pm today. This appears to be related to a potential denial of service, denoted by a spike in traffic to the server. no conclusions have been made yet We believe the only user impact would be that users connected via OWA to ex3 may have been disconnected. All services are up on the redundant servers and we will redistribute after close of business today.
Jason Appah Network Engineering/Server Support B211 Kerr Admin Bldg Oregon State University Corvallis, OR 97331 541-737-8801 Jason.appah@oregonstate.edu [Description: cid:image001.png@01CD583B.8BD4B460]
We will be working with NOC to add vlan 414 to our blade centers trunk. This will be done to one trunk port at a time, and one data center at a time.
Start Time: 4/06/13 at 9:00 pm
End Time: 4/06/13 at 9:30 pm
If you have any questions or concerns about this maintenance, please contact OSU-SIG ( at ) oregonstate.edu or call 7-help
We experienced a service interruption to Exchange this morning during our routine maintenance. Between 10:36 and 10:47AM users could not establish new connections to Exchange OWA and the POP3 service was down from 10:34 to 11:15AM. It appears that both of these outages were the result of configuration changes on the NetScaler load balancer.
If you have questions or concerns about this outage, please contact Network Engineering at net (at) oregonstate.edu or call 737-HELP.
Cary Shufelt
Notice of Unplanned Outage
At approximately 6:58 am the connection to the b210 data center in Kerr Administration building went down for about 30 seconds due to an adverse affect of routine maintenance. We are investigating the cause and will evaluate if the maintenance performed should still be considered routine.
Joel Burks
If you have questions or concerns about this outage, please contact Network Engineering at net (at) oregonstate.edu or call 737-HELP.
The maintenance on the network device has been successfully completed and all building links are back online.
Sent: Wednesday, March 20, 2013 2:44 PM Cc: Outages and Announcements
Network Services will be performing maintenance on the ResNet networks (both wired and wireless service) on the morning of Thursday, March 28th between 5:30 and 6:30 am. The network in residence halls & cooperative houses will be down for most of the hour while we upgrade the router’s chassis and make a configuration change to resolve a performance issue they’re currently encountering.
Tony Brock Network Services, Engineering Team
One of OSU’s Internet providers, NERO (Network for Education and Research in Oregon), will be performing an upgrade to their Corvallis hub between 4:00 am and 6:00 am on Thursday, March 28. Although OSU is connected to the Internet via several providers, many external customers will experience up to two service interruptions with OSU-hosted websites and applications, with interruptions lasting between 3 and 10 minutes.
Likewise, Internet connections from the Corvallis campus may also be interrupted. However, NERO’s maintenance will not affect internal OSU services. This means that VoIP, building controls, and other on-campus systems will continue to function normally unless they depend on cloud-hosted services.
Primary Contact: Josh Zojonc, josh.zojonc@oregonstate.edu
On Saturday the 30th @10pm we will be upgrading our Netscaler load balancers from version 9.3 to version 10.0. We will be following the Citrix documentation on how to do this. The appliances will be upgraded one at a time and no downtime or outages are expected. This change will be invisible to users. In the event of any problems we will roll the changes back following Citrix documentation.
General Communication is via: http://blogs.oregonstate.edu/sig/2013/03/26/netscaler-upgrade-to-version-10/ I will be communicating with those that are able to log into the Netscaler on an individual basis.
We will be making two wireless network changes at around 6:30 a.m. on Tuesday 26th March 2013. Both have been tested under realistic load, in the Memorial Union. Neither seemed to disrupt service.
The OSU_Secure wireless network change will be the more noticeable of the two changes. It will result in OSU_Secure users receiving new I.P. addresses (see below for the details).
On campus view:-
Client I.P. Range Subnet Mask Default Gateway ——————— —————- ——————— 10.162.128.0 255.255.248.0 10.162.128.1 10.162.136.0 255.255.248.0 10.162.136.1 10.162.144.0 255.255.248.0 10.162.144.1
Off campus view:-
128.193.152.160 through 128.193.152.174
If you maintain an on-campus firewall (or access control list), that allows users of the OSU_Secure wireless network to get inside, you will have to update it with the new (on-campus) address ranges. If you collaborate with an outside organization, and they have allow users of the OSU_Secure wireless network to connect through their firewall, they will have to update their firewall with the new (off-campus) address ranges. If you experience a problem connecting to a resource, after we make the change, please check your firewall/access-list first.
Ian R. Downie
We will be working with NOC to add vlan 1140 and remove vlan 3817 to our blade centers trunk. This will be done to one trunk port at a time, and one data center at a time.
Start Time: 3/23/13 at 9:00 pm
End Time: 3/23/13 at 9:30 pm
If you have any questions or concerns about this maintenance, please contact OSU-SIG ( at ) oregonstate.edu or call 7-help
** Maintenance Announcement – No service interruption anticipated **
We will be moving our Milne Blade Center from mccnet101 to nexus gear. We will migrate non-redundant VMs to KAD b210. During the migration we expect to drop 1~2 packets when we cut over from the active fiber pair on mccnet101 to the nexus gear. Though we will do not expect a service interruption as all critical VMs will be moved to our other data center first.
Start: Spring Break – TBD
End: Spring Break – TBD
If you have questions or concerns about this maintenance, please contact the Shared Infrastructure Group at osu-sig (at) oregonstate.edu or call 737-7SIG.
** Maintenance Announcement – No service interruption anticipated **
We will be migrating from our old vCenter servers to our new vCenter servers. There will be no interruption of service. During the move if Administrators need to gain console access to their VMs they may need to check both vCenter servers to find their VMs. After the moves are complete Administrators will access consoles from the NEW vCenter server.
The new server to connect to is: vcenter.sig.oregonstate.edu.
Regular remote access mechanisms like ssh or remote desktop to the VMs will be unaffected. All VMs and their services will continue to run as normal. There should be no customer impact.
Start: 03/30/2013 9:00 PM
End: 03/30/2013 23:59 PM
If you have questions or concerns about this maintenance, please contact the Shared Infrastructure Group at osu-sig (at) oregonstate.edu or call 737-7SIG.
