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RMAN crosscheck expires existing archivelogs on NFS

jmillingerDec 28 2022

Windows server 2019
64-bit Oracle 19c, patched to 19.16.0.0.220719
Qumulo NFS storage, mounted:

Local Remote Properties
-------------------------------------------------------------------------------
Q: \\<ip address>\ORACLE-BACKUPS UID=0, GID=0
rsize=1048576, wsize=1048576
mount=hard, timeout=0.8
retry=1, locking=no
fileaccess=777, lang=ANSI
casesensitive=no
sec=sys

The problem is specific to the crosscheck function of RMAN, and only to archivelog backups. Database/tablespace backups have no issues after a crosscheck and remain AVAILABLE. Archivelogs however are EXPIRED incorrectly.
If crosscheck is not run, the archivelog backups are available and can be restored. So it isn't the NFS storage, and yet it is. This problem does not exist on the regular Windows filesystem drives.
Has anyone ever seen this behaviour before?

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Added on Dec 28 2022
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