For a storage pool to support Failover Clustering, it must support which technology?

For a storage pool to support Failover Clustering, it must support which technology?

• A. Serial Attached SCSI (SAS)
• B. Serial ATA (SATA)
• C. Integrated Drive Electronics (IDE)
• D. Hot Swap Recovery Protocol (HSRP)

Answer: (A)

Failover clustering requires shared, highly available storage with reliable path redundancy. Serial Attached SCSI provides enterprise-grade interfaces designed for server storage, including dual-port drives and robust multipath I/O. This means multiple, independent paths can connect the cluster nodes to the same storage, allowing I/O to fail over seamlessly if one path or component has an issue. That level of reliability and path redundancy is what the cluster needs to stay online, make maintenance easier, and ensure data integrity. SATA and IDE are more common in consumer or consumer-like scenarios and don’t consistently offer the same guaranteed dual-path/multipath capabilities essential for clustered storage. IDE is outdated for modern servers, and HSRP isn’t a real storage technology used for storage pools in cluster environments.

Failover clustering requires shared, highly available storage with reliable path redundancy. Serial Attached SCSI provides enterprise-grade interfaces designed for server storage, including dual-port drives and robust multipath I/O. This means multiple, independent paths can connect the cluster nodes to the same storage, allowing I/O to fail over seamlessly if one path or component has an issue. That level of reliability and path redundancy is what the cluster needs to stay online, make maintenance easier, and ensure data integrity.

SATA and IDE are more common in consumer or consumer-like scenarios and don’t consistently offer the same guaranteed dual-path/multipath capabilities essential for clustered storage. IDE is outdated for modern servers, and HSRP isn’t a real storage technology used for storage pools in cluster environments.