Final answer:
A server showing disk degradation errors and missing OS could likely be experiencing a RAID failure and an issue with the bootable device being not found. These are the most probable causes that align with the given error messages.
Step-by-step explanation:
The error alerts on a server indicating that one or more disks are in a degraded state, followed by an error message stating that the OS is missing, suggest that there are a couple of issues at play. The most likely causes of these errors are:
- RAID failure: This would explain the disks being in a degraded state since RAID is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for redundancy.
- Bootable device not found: This can be inferred from the error stating that the OS is missing. It typically points to the system being unable to find a drive with a bootable partition, which could be due to a RAID failure or other disk-related issues.
While other potential causes like controller failure, CMOS corruption, or TPM malfunction could also be possible, the symptoms specifically given align most closely with a RAID failure and inability for the system to recognize a bootable device.