An administrator notes that after a recent power outage, some open files were corrupted on one affected file server. Which of the following items should the administrator consider to determine the…

System RAM is volatile and loses its contents on power loss, but it does not serve as the write cache path for RAID storage, making the RAID controller BBU the relevant failure point for disk write integrity.

RAID controllers use a battery backup unit (BBU) to preserve the contents of the volatile write cache when power is unexpectedly removed; if the BBU has failed or lost its charge, any data in the write cache at the moment of outage is not flushed to disk and is permanently lost. This results in file corruption for any open files that had unwritten cache data at the time power failed. Checking the BBU status in the RAID management utility would confirm whether a depleted or failed battery was the root cause.

The server processor has no role in preserving in-flight disk write operations during a power failure and is not involved in the data path between the RAID write cache and physical drives.

NIC teaming is a network interface redundancy configuration that has no relationship to disk write integrity or file corruption caused by power loss.