CHG0076144 - CITZ MCS SILVER/EMERALD - Replace end of life NetApp

» Sat, 07 Mar 2026 16:00:00 +0000

Scheduled

The NetApp Storage appliances that back the PVC volumes used by pods in both SILVER and EMERALD will be replaced with new hardware. This will be followed up with node drains during the following week.

When?

The storage migration starts on Saturday, March 7th at 8:00 AM and finishing before Sunday at 08:00 PM.

Node drains for infra will start after Storage migration is complete on Sunday March 8th at 9:00 AM and worker node drains starting on Monday March 9th at 9:00 AM until 5:00 PM daily and finish before Friday March 13th 5:00 PM.

Will there be an impact on the Platform apps?

For the storage migration no downtime is expected at the time, for questions post in #devops-operations. Node drains will affect individual workloads.

The data will be migrated from the old cluster to the new cluster behind the scenes. The NFS IP will get moved between the clusters the same way it does during normal NetApp maintenance. iSCSI will have new paths added and old ones removed while maintaining redundant paths.

Do I need to do anything?

No action is required during the storage migration. Monitor your applications during the phase involving node drains.

Check the #devops-alert channel for the announcement of when the change is complete and check the health of your app.

CHG0076413 - CITZ MCS SILVER - Move 3 nodes to a new rack

» Tue, 10 Mar 2026 17:00:00 +0000

Scheduled

When?

CHG0076413 - Tuesday, March 10th at 9:00 AM and finishing Thursday March 12th before 5:00 PM

Will there be an impact on the Platform apps?

The app nodes will be drained and any pods running on it will be moved to other nodes, which may be disruptive. Infra drains are not likely to be disruptive but may cause some slowness with logging.

Do I need to do anything?

No action required.

Check the #devops-alert channel for the announcement of when the change is complete and check the health of your app.

CHG0076634 CITZ - MCS GOLD - Drain and power down mcs-gold-app-07.dmz for decommissioning

» Wed, 11 Mar 2026 16:00:00 +0000

Scheduled

What is happening?

One node in GOLD will be drained and powered down due to the hardware reaching end of life. Replacement capacity had previously been installed in GOLD.

When?

Starting at Wednesday, March 11th at 9:00 AM and finishing before 5:00 PM

Will there be an impact on the Platform apps?

Pods will be drained and rescheduled to other nodes.

Do I need to do anything?

No

Check the #devops-alert channel for the announcement of when the change is complete and check the health of your app.