The IT Services Infrastructure Support Team will be implementing an UCS firmware upgrade on May 15, 2021, from 1:00 a.m. to 5:59 a.m. There should be no impact to the availability of all services.
Data Center & Servers
The IT Services Infrastructure Support Team will be implementing an UCS firmware upgrade, on March 22, 2021, from 12:00 a.m. to 5:59 a.m. There should be no impact to the availability of all services.
Network Services will be migrating Vlan79 (128.97.98.128/26 network) configured in the Data Center environment to the new infrastructure on February 4th, 2021 from 7:00 p.m. to 11:59 p.m. This will impact ITS LDAP servers that reside in this network and services on these hosts will be intermittently available during the migration.
UCLA IT Services -- Network Services will be upgrading the IOS on two service routers at CSB1 on Monday, Dec. 21 2020 from 5 a.m. to 8 a.m. The IOS is being upgraded and configured to support the ssh protocol. ITS Voice Services, Security, and Systems Operations utilize both service routers at CSB1. These systems and services have redundancy, so no outages are anticipated during the maintenance window, with the exception of the FireEye appliance.
Network Services will be migrating a Data Center storage and virtualization network to a new infrastructure on Sunday, November 1, 2020 from 4:30 a.m. to 8:30 a.m. This will impact all servers that are configured to use Isilon storage. Services on these hosts will be intermittently available during the migration.
Network Services will be migrating a Data Center storage and virtualization network to a new infrastructure on Sunday, October 11, 2020 from 4:30 a.m. to 8:30 a.m. This will impact all servers that are configured to use Isilon storage. Services on these hosts will be intermittently available during the migration.
IT Services -- Network Services will be performing a software code upgrade on the Datacenter nexus switches on Sunday, September 27, 2020 from 12:00 a.m. to 6:00 a.m. The upgrade is required to fix a software vulnerability. We'll be upgrading the code on one DCN device at a time, and no outage is expected for the dual-attached hosts as traffic will be re-routed through redundant devices. There's a potential brief connection disruption while the traffic is being re-routed.
Network Services will be migrating Vlan79 (128.97.98.128/26 network) configured on the Datacenter environment to the new infrastructure on Thursday, August 27th from 6:00 p.m. to 10:00 p.m. This will impact UCOP switches, as well as ITS LDAP servers that reside on this network. Services on these hosts will be intermittently available during the migration.
UCLA IT Services -- Network Services will be performing a software code upgrade on the Data Center firewall appliances on Sunday, June 28, 2020 from 12:00 a.m. to 5:00 a.m. In addition, the ASA code running on the appliances will also be upgraded. The code will be upgraded on one DCN firewall at a time, and no outage is expected as traffic will be re-routed through the redundant firewall appliances. There could be a potential connection disruption while the traffic is being re-routed and the upgrade is being performed.
On Sunday, May 10, from 12 a.m. to 3 a.m., IT Services will be upgrading software on the Data Center firewall appliances. The upgrade is required to fix a software bug which results in a memory leak. This memory leak caused the firewall appliances to failover on 3/26/20 and resulted in an outage. We'll be upgrading the code on one firewall at a time. No outage is expected as traffic will be rerouted through redundant firewalls. There's a potential brief connection timeout while the traffic is being rerouted.
