A 3-node All-Flash vSAN cluster has this configuration: -> One disk group per host -> All disk groups have identical make & model disks of an 800GB NVMe SSD cache and 2x 4TB SAS SSDs each An administrator has been tasked with expanding storage capacity by adding one additional disk group with this configuration: -> 1.6TB SAS SSD cache and 1x 4TB SAS SSDs Assuming all the disks are compliant with the vSAN HCL, which is true?
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A. B. C. D.D.
https://blogs.vmware.com/virtualblocks/2019/04/18/vsan-disk-groups/In a 3-node All-Flash vSAN cluster with one disk group per host, all disk groups have identical make and model disks of an 800GB NVMe SSD cache and 2x 4TB SAS SSDs each. Now, an administrator has been tasked with expanding the storage capacity by adding one additional disk group with 1.6TB SAS SSD cache and 1x 4TB SAS SSDs.
In this scenario, if all the disks are compliant with the vSAN HCL (Hardware Compatibility List), the additional disk group would work and be fully supported by VMware support. Therefore, option B is the correct answer.
Adding the additional disk group would increase the storage capacity of the vSAN cluster, but it would also change the configuration from having identical disks in all disk groups to having different disks in the new disk group. This change could potentially trigger a health check warning in vSAN. The warning could be an "Advanced vSAN Configuration in sync" warning, which indicates that the new disk group has a different configuration from the existing disk groups in the vSAN cluster. However, this warning is not a critical issue, and the vSAN cluster will still function correctly.
It is important to note that the additional disk group must also meet the minimum requirements for vSAN, such as having sufficient capacity, performance, and redundancy, to ensure that the vSAN cluster remains in a healthy state. If the additional disk group does not meet these requirements, it could make the cluster an unsupported configuration, which would not be advisable.
In summary, if all disks are compliant with the vSAN HCL and the new disk group meets the minimum requirements for vSAN, then the addition of the new disk group would work and be fully supported by VMware support, and the vSAN cluster would continue to function correctly.