Frequent "sending ioctl 2285 to a partition! " entries in OS messages
Due to bug:
BUG 17186167 - FREQUENT "SENDING IOCTL 2285 TO A PARTITION" IN SYSTEM MESSAGES
Bug 17186167 is fixed in 18.1.
Apply one-off Patch 17186167 to both grid and rdbms home. If interim patch does not exist for your platform/version,engage Oracle Support to request a patch.
Grid version is at 19.3
Database version is 126.96.36.199
Checking to see if patch is required for 19.3 GI or just applying to RDBMS home will fix that ?