Peter wrote:

>One of our loadlib dataset got corrupted and I get a message as An I/O error 
>was encountered reading the first record requested while trying to browse the 
>module. While I don't see any related message in syslog during this time.

Please post the full message(s).


>Also the started task trying to read that loadlib fails with s106

Please post the full message of that System Abend 106.


>I understand this can be fixed by getting a copy from a backup but is there 
>any reason why it got corrupted ? This Dataset is shared between two zOS 
>system running on zVM and there are no serialisation set up.

Get a good backup and just don't share that dataset and the volume.


>Please help me to understand why this happens and how can it be avoided in 
>future.

Why? Incorrect sharing in the first place.
Avoiding? Just don't do it. KISS (Keep It Sweet and Simple!)

Groete / Greetings
Elardus Engelbrecht

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