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| Start | End | What System/Service is affected | What is happening? | What will be affected? |
|---|---|---|---|---|
| 2017-10-25 06:00 | 2017-10-25 17:00 | Blue Waters | Applying an emergency security patch. | All login and compute nodes will be rebooted with a new patched image. |
| 2017-10-23 08:00 | 2017-10-24 08:00 | Campus Cluster | Moving and rewiring DES rack, installing new cc-core switches and rewiring Shared Services POD. | Scheduler will be down, GPFS will be down and no outside connectivity for brief moment. |
| 2017-10-31 - 13:30 | 2017-10-31 - 15:00 | CA Firewall Upgrade Part 1 | the stand-by, "B" unit, NCSA Certificate Service Firewall will be upgraded and then traffic redirected through it for load testing before the "A" unit is upgraded | Expect no impact to services |
| 2017-11-07 - 13:30 | 2017-11-07 - 15:00 | CA Firewall Upgrade Part 2 | The normal active, "A" unit, NCSA Certificate Service Firewall will be upgraded and then normal fail-over status will be re-enabled. | The possibility of connection resets when the A unit comes back from being upgraded and state is being sycned. |
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