Dear SWITCHengines user
Our engineers have been restarting the affected network components and connectivity to the LS cluster has been restored. We are now monitoring the situation.
If you are still experiencing problems, please get in touch with us through ‘engines-support(a)switch.xn--ch-o2t
We are very sorry for that interruption. We will publish a post mortem when we have done the root cause analysis.
Best regards
Jens-Christian Fischer
--
SWITCH
Jens-Christian Fischer, Teamlead Managed Applications & Services
Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 268 15 15, direct +41 44 268 15 71
jens-christian.fischer(a)switch.ch
http://www.switch.ch
Dear SWITCHengines user
Network connectivity in the LS cluster is. currently interrupted. We are working on re-instatiating access
Next update: 13:00
Best regards
Jens-Christian Fischer
--
SWITCH
Jens-Christian Fischer, Teamlead Managed Applications & Services
Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 268 15 15, direct +41 44 268 15 71
jens-christian.fischer(a)switch.ch
http://www.switch.ch
Dear SWITCHengines users,
From 10am on September 17th, essential electrical work will be taking place at the University of Lausanne which impacts two of our SWITCHengines racks. As all systems have dual-homed power, this should not be service affecting. However, the maintenance window is noted as a precaution.
All the best,
Ann
--
Ann Harding, Team Lead, Infrastructure & Platform as a Service,
SWITCH, Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 253 98 14, ann.harding(a)switch.ch<mailto:ann.harding@switch.ch>
Working for a better digital world - www.switch.ch<http://www.switch.ch>
Dear SWITCHengines users,
Shortly before 16:00 a subset of racks in SWITCHengines ZH experienced a power outage. The cause has been identified, the trigger removed, and we are working to restore networking to the impacted VMs.
If you have any questions, please contact us at engines-support(a)switch.ch<mailto:engines-support@switch.ch>
Regards,
Ann Harding
--
Ann Harding, Team Lead, Infrastructure & Platform as a Service,
SWITCH, Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 253 98 14, ann.harding(a)switch.ch<mailto:ann.harding@switch.ch>
Working for a better digital world - www.switch.ch<http://www.switch.ch>
Dear SWITCHengines users,
Following successful completion to our first set of upgrades to OpenStack to be carried out over 2020, we are now ready to deploy OpenStack Queens. Typically an OpenStack upgrade requires between 7-10 individual components to be upgraded. To minimise service downtime we planned and tested a rolling set of updates, component by component rather than a single larger period of unavailability to upgrade the full system in one go. While many of the components can be upgraded with low risk in-service, three require brief interruptions to service and are scheduled in maintenance windows. The Keystone component for authentication has already been successfully upgraded to OpenStack Queens.
The next scheduled components are Nova, which enables provisioning and de-provisioning of virtual machines, and network agents which manage the virtual networking. The strategy will be to upgrade both components in one region, and then both in a second region.
The proposed schedule, all within maintenance windows is as follows:
Thursday 3rd September 21:00-23:00 OpenStack Nova Zürich - provisioning/deprovisioning of VMs
Expected impact: A few moments of unavailability of functionality to provision, deprovision or change VMs. Running VMs are NOT impacted.
Tuesday 8th September 07:00-09:00 OpenStack Network Agents Zürich - virtual networking functions
Expected impact: Virtual networking functionality will be unavailable for a few moments per network agent during this maintenance window. This may briefly impact connectivity to individual VMs on a rolling basis.
Thursday 10th September 21:00-23:00 OpenStack Nova Lausanne - - provisioning/deprovisioning of VMs
Expected impact: A few moments of unavailability of functionality to provision, deprovision or change VMs. Running VMs are NOT impacted.
Tuesday 15th September 07:00-09:00 OpenStack Network Agents Lausanne - virtual networking functions
Expected impact: Virtual networking functionality will be unavailable in for a few moments per network agent during this maintenance window. This may briefly impact connectivity to individual VMs on a rolling basis.
If you have any questions about the planned upgrades or have some concerns about concrete proposed dates, please let us know at engines-support(a)switch.ch<mailto:engines-support@switch.ch>
All the best,
Ann
--
Ann Harding, Team Lead, Infrastructure & Platform as a Service,
SWITCH, Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 253 98 14, ann.harding(a)switch.ch<mailto:ann.harding@switch.ch>
Working for a better digital world - www.switch.ch<http://www.switch.ch>
Dear SWITCHengines users,
As part of our commitment to improve the stability of SWITCHengines and modernise the available features, we have been preparing upgrades to OpenStack to be carried out over 2020. Typically an OpenStack upgrade requires between 7-10 individual components to be upgraded. To minimise service downtime we planned and tested a rolling set of updates, component by component rather than a single larger period of unavailability to upgrade the full system in one go. While many of the components can be upgraded with low risk in-service, three require brief interruptions to service and are scheduled in maintenance windows. The Keystone component for authentication has already been successfully upgraded to OpenStack Pike.
The next scheduled components are Nova, which enables provisioning and de-provisioning of virtual machines, and network agents which manage the virtual networking. The strategy will be to upgrade both components in one region, and then both in a second region.
The proposed schedule, all within maintenance windows is as follows:
Thursday 13th August 21:00-23:00 OpenStack Nova Zürich - provisioning/deprovisioning of VMs
Expected impact: A few moments of unavailability of functionality to provision, deprovision or change VMs. Running VMs are NOT impacted.
Tuesday18th August 07:00-09:00 OpenStack Network Agents Zürich - virtual networking functions
Expected impact: Virtual networking functionality will be unavailable for a few moments per network agent during this maintenance window. This may impact connectivity to individual VMs on a rolling basis.
Thursday 20th August 21:00-23:00 OpenStack Nova Lausanne - - provisioning/deprovisioning of VMs
Expected impact: A few moments of unavailability of functionality to provision, deprovision or change VMs. Running VMs are NOT impacted.
Tuesday 25th August 07:00-09:00 OpenStack Network Agents Lausanne - virtual networking functions
Expected impact: Virtual networking functionality will be unavailable in for a few moments per network agent during this maintenance window. This may impact connectivity to individual VMs on a rolling basis.
If you have any questions about the planned upgrades or have some concerns about concrete proposed dates, please let us know at engines-support(a)switch.ch<mailto:engines-support@switch.ch>
All the best,
Ann
--
Ann Harding, Team Lead, Infrastructure & Platform as a Service,
SWITCH, Werdstrasse 2, P.O. Box, 8021 Zurich, Switzerland
phone +41 44 253 98 14, ann.harding(a)switch.ch<mailto:ann.harding@switch.ch>
Working for a better digital world - www.switch.ch<http://www.switch.ch>
