An administrator is troubleshooting a RAID issue in a failed server. The server reported a drive failure, and then it crashed and would no longer turn on. There are two arrays on the failed server…

RAID 0 provides no redundancy; if even one drive in a two-drive RAID 0 set fails, the entire array is destroyed, leading to data loss and the inability to boot the operating system. This scenario perfectly explains the server crashing and not being able to turn on after a drive failure was reported.

If a drive failed and then recovered in the RAID 10 data array, the server would likely remain operational or at least be able to boot, as RAID 10 is fault-tolerant and could continue functioning with a single drive failure and subsequent recovery.

While a drive failing in both arrays would certainly cause the server to crash, a single drive failure in the OS array (RAID 0) is sufficient and a more parsimonious explanation for the described symptoms without needing a failure in the other array.

A RAID 10 array is fault-tolerant and can withstand multiple drive failures, specifically one drive in each mirrored pair without losing data. A single drive failure in the eight-drive RAID 10 data array would not typically cause the entire server to crash and be unable to turn on, as the OS array would still be functional.