Upgrading from UEK R6 to UEK R7 on Arm platform may fail if RAID 5 default page size differs from default stripe size
Starting with UEK R7, the default page size on the Arm platform has changed to 4 KB, from the previous 64 KB default. This change in page size might cause an upgrade from UEK R6 to UEK R7 to fail on systems that are configured for RAID 5 when the default page size differs from the default stripe size.
For this reason, before upgrading from UEK R6 to UEK R7, back up and reformat RAID 5 volumes. In cases where retaining the same RAID 5 configuration is preferred, we recommend that you continue to run UEK R6.
See Default Page Size on Arm Platform Changed to 4 KB for additional information.
(Bug ID 33858264)