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Which statement is true about the hardware configuration for ESXi hosts participating in a virtual SAN?
A. The hosts must have identical hardware.
B. Each host must have at least one Solid State Drive (SSD).
C. The hosts must have network attached storage.
D. Each host must have a RAID Controller.
Correct Answer: B
Explanation/Reference:
Explanation:
A vSphere Virtual SAN virtualizes local physical storage resources of ESXi hosts and turns them into pools of storage (datastores) that can be partitioned and assigned to virtual machines and applications.
You can activate a Virtual SAN when you create host clusters or enable Virtual SAN on existing clusters. When enabled, Virtual SAN aggregates all local storage disks available on the hosts into a single datastore shared by all hosts. You can later expand the datastore by adding storage devices or hosts to the cluster.
Host Requirements:
A minimum of three hosts contributing local disks is required. Each host must contribute one SSD and at least one HDD.
Install ESXi 5.5 or later on each host. You can add the hosts to the Virtual SAN cluster during initial setup of the cluster, or you can add hosts later.
The hosts must be managed by vCenter Server 5.5. Not all hosts need to have local storage. ESXi memory requirements: at least 6GB of RAM on each host.
Incorrect Answers:
A: The hosts in a Virtual SAN cluster do not need to have identical hardware. Therefore, this answer is incorrect.
C: The hosts in a Virtual SAN cluster do not need to have network attached storage; local storage can be used. Therefore, this answer is incorrect.
D: The hosts in a Virtual SAN cluster do not need to have a RAID controller; a SAS or SATA HBA (or a RAID controller) can be used. Therefore, this answer is incorrect.
References:
http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.storage.doc/GUID-CE88B700-26F8-420A-87D5-38636EBF1767.html
