Exchange 2016 CU19 Stalled on Step 4

Tim Millard 26 Reputation points

We're running CU19 on Exchange 2016, and we've been on Step 4 at 90% for over 2 hours now; removing exchange files. We did have one issue where we were running out of room on the C: drive, but cleared that up by removing inetpub log files that were substantial (almost a years worth). Still this did not seem to help. It is a virtual server running on VMWare vcenter 6.5 and we have a snapshot of the server prior to attempting the patch, so it is possible to reverse it. I just don't know if I should stop the execution, restart the server and try it again or just wait. There is CPU utilization on the server, but it is steady and not fluctuating at all. We had a similar issue with running updates on the server itself last night, but after about an hour it finished up. We did have to restart the server once because the update did stall at one point, and then continued without incident. Any thoughts, / advice would be greatly appreciated.

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Andy David - MVP 120.5K Reputation points MVP

    Any anti-virus running on the server? If so, disable it.

    If you do decide to stop it, I would reboot and start it again, With the watermark in the registry is should pick up where it was at... ( should :P )

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  1. Tim Millard 26 Reputation points

    Nothing other than defender. We're using SentinelOne but it was uninstalled before the update. That's what I am hoping as well! I may give that a shot in a few.

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