FSLogix 2.9.7838.44263 server crashes

Martijn Kools 141 Reputation points
2021-09-21T07:25:47.603+00:00

Hi,

Don't know if anyone else has the same issue but since we've upgraded to 2.9.7838.44263 our Citrix servers (Windows 2019) are randomly crashing.

The logs show entries like this:

The system failed to flush data to the transaction log. Corruption may occur in VolumeId: \\?\Volume{34452b55-3775-4ac8-abe5-e695dc7e5eae}, DeviceName: \Device\HarddiskVolume10.
(The I/O device reported an I/O error.)

The system failed to flush data to the transaction log. Corruption may occur in VolumeId: \\?\Volume{069ed869-b97f-4e88-9b03-9c436f302007}, DeviceName: \Device\HarddiskVolume6.
(The I/O device reported an I/O error.)

An error was detected on device \Device\Harddisk5\DR6 during a paging operation.
The IO operation at logical block address 0x3f3e28 for Disk 5 (PDO name: \Device\0000006a) was retried.

This goes on and on and on for five minutes for all mounted VHDX files. Then the entire Citrix server crashes.

FSLogix
FSLogix
A set of solutions that enhance, enable, and simplify non-persistent Windows computing environments and may also be used to create more portable computing sessions when using physical devices.
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  1. Martijn Kools 141 Reputation points
    2021-09-27T07:57:07.687+00:00

    So to update this, this was not fslogix related. Apparentley I installed the server with no internet connection and just WSUS for updates and it seemed like the Windows Defender signatures didn't get updated causing corruption in FSLogix vdisks. It's a theory, but I recreated my image with an internet connection and let Windows Update run over the internet and all issues are gone. I'm happily running the latest version now without any issues.

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