What is a minimum disk controller requirement for VMware vSAN? (Choose the best answer.)
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A. B. C. D.D.
https://www.vembu.com/blog/vmware-vsan-configuration-setup/The minimum disk controller requirement for VMware vSAN is a disk controller in pass-through or RAID 0 mode.
vSAN is a storage virtualization solution provided by VMware that utilizes local disks in the ESXi hosts to create a distributed storage cluster. The disk controller is responsible for managing and controlling access to the disks in the ESXi host.
In pass-through mode, the disk controller passes through direct access to the disks to the virtual machines (VMs) running on the ESXi host. This mode is useful when the VMs require direct access to the disks, such as when using software-defined storage solutions like vSAN.
RAID 0 mode, on the other hand, is a disk configuration that provides striping of data across multiple disks without any redundancy. In this mode, each disk is seen as a separate device, and data is written across all disks simultaneously, which can result in improved performance. However, RAID 0 does not provide any data protection against disk failures, and a failure of any disk in the array will result in complete data loss.
JBOD (Just a Bunch of Disks) mode is a disk configuration that presents multiple disks as individual disks to the operating system. While this mode can be used with vSAN, it does not provide any additional features or benefits over pass-through or RAID 0 modes.
RAID 1 mode provides data redundancy by mirroring data across two or more disks, but it is not recommended for vSAN as it reduces the usable storage capacity and can impact performance.
Therefore, the best answer to the question is option D, a disk controller in pass-through or RAID 0 mode.