An enterprise infrastructure team is redesigning the storage connectivity for a mission-critical database host attached to a Storage Area Network (SAN). The primary goal is to eliminate single points of failure in the physical and logical communication paths between the host server and the storage array, ensuring continuous throughput even if a cable or adapter fails. Which of the following technical controls should the team implement to meet these criteria? (Select TWO).
- Dual Host Bus Adapters (HBAs) connected to separate, isolated storage fabricsCevap
- Multipath I/O (MPIO) driver configuration on the host operating systemCevap
- CAutomated hourly immutable storage snapshots replicated to an off-site cloud repository
- DA warm disaster recovery site configured with a 4-hour Recovery Time Objective (RTO)
Cevap
The team should implement Dual Host Bus Adapters (HBAs) connected to separate storage fabrics along with Multipath I/O (MPIO) configured at the host operating system level.
High availability for Storage Area Network (SAN) connectivity requires redundancy at both the physical layer and the logical operating system layer. Dual Host Bus Adapters (HBAs) linked to distinct storage switches eliminate single points of failure in hardware and cabling. Concurrently, Multipath I/O (MPIO) provides the software-level intelligence needed for the operating system to detect path failures and fail over transparently without dropping I/O sessions.
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Anahtar Kavram
SAN Path Redundancy and High Availability