A technician is servicing a system where POST reports a degraded RAID 1 array due to a disk failure, and diagnostic logs show the remaining operational drive is registering elevated S.M.A.R.T. reallocated sector counts. Which of the following actions should the technician perform to address this situation while preventing permanent data loss? (Select TWO.)
- Perform a complete backup of the existing volume data to an independent external drive or network location.Answer
- Replace the failed physical disk and initiate an array rebuild after data preservation is verified.Answer
- CReformat all drives in the array and recreate the RAID 1 configuration to clear S.M.A.R.T. warnings.
- DConvert the RAID 1 array into a RAID 0 stripe set to bypass disk error checking and boost read throughput.
Answer
The correct actions are to back up the existing volume data immediately to an external or network location and replace the failed drive to rebuild the array once data preservation is confirmed.
When a RAID 1 array has lost one drive and the surviving drive exhibits S.M.A.R.T. warnings, the highest priority is backing up data immediately before high disk I/O causes the surviving drive to fail completely. After securing a backup, replacing the defective drive and performing a rebuild restores array stability and fault tolerance.
Step-by-Step Solution
Key Concept
Handling degraded RAID arrays with impending secondary drive failure