An administrator needs to ensure maximum performance, throughput, and redundancy for the company’s Oracle RAC on Linux implementation, while using…

The question requires a configuration that provides maximum performance, throughput, redundancy, and native security for an Oracle RAC implementation.

1. Storage Type: Oracle RAC requires high-performance shared block storage. Nutanix Volumes is the appropriate solution, providing iSCSI block storage. Nutanix Files (options A and B) is not suitable for this workload.

2. Performance: To achieve maximum performance, Nutanix best practices recommend using a Volume Group with multiple vDisks. This distributes I/O across multiple Controller VMs (CVMs), preventing bottlenecks and scaling performance.

3. Security: The native method for securing iSCSI workloads is CHAP (Challenge-Handshake Authentication Protocol), which provides authentication between the server (initiator) and the Nutanix cluster (target).

4. Throughput & Redundancy: While MPIO (Multipath I/O) is critical for throughput and redundancy, the combination of features in option D provides the most comprehensive solution described. Using multiple vDisks attached to the Oracle RAC nodes inherently provides a level of load distribution and redundancy at the storage layer, as each vDisk can be managed by a different CVM. Combined with CHAP for security, this option directly addresses more of the specific requirements than option C.

Therefore, a configuration using Volumes with CHAP for security and multiple vDisks for performance is the most complete answer that aligns with Nutanix best practices for this specific, demanding application.

A. Flies with a distributed share and ABE: Nutanix Files is file-level storage, which is not the recommended high-performance block storage required for Oracle RAC.

B. Files with a general purpose share and File Blocking: This option incorrectly proposes using file storage for a block-based workload and includes an irrelevant security feature.

C. Volumes with MPIO and a single vDisk: This configuration is suboptimal for performance as it uses only a single vDisk, which can create a performance bottleneck on a single CVM.

1. Nutanix Best Practices Guide: Oracle on Nutanix (BP-2002):

Section: Nutanix Volumes

Page 15: "Nutanix Volumes provides highly available

high-performance block storage... We recommend using Nutanix Volumes for Oracle RAC deployments." This validates using Volumes over Files.

Section: Nutanix Volumes Best Practices

Page 16: "For maximum performance

create multiple virtual disks and attach them to the guest. This approach allows the guest to access the Nutanix cluster through multiple CVMs

which distributes the load." This supports the "multiple vDisks" aspect of option D over the "single vDisk" in option C.

2. Nutanix University: Nutanix Certified Professional - Unified Storage (NCP-US) v6.5 Student Guide:

Module 3: Nutanix Volumes

Lesson: Securing Volumes: "Nutanix Volumes supports Challenge-Handshake Authentication Protocol (CHAP) to ensure that only authenticated clients can access storage resources." This confirms CHAP as the native security method.

3. Official Nutanix Documentation: Volumes Guide v6.5:

Chapter: Volume Group Configuration for a Guest VM

Section: Creating a Volume Group: "For a database application

you can create multiple virtual disks in a volume group and attach the volume group to the database VMs. This configuration provides better I/O performance." This reinforces the performance benefit of multiple vDisks.