QuestionQ121

Performance-tuning, Optimization, and Upgrades

A vSAN OSA cluster is configured as follows:

  • 4 hosts, with 1 disk group on each host
  • Each disk group includes 1 cache device and 7 capacity devices

Which two methods can increase the vSAN datastore storage capacity?

Choose two
  • A Replace a cache device with a larger cache device
  • B Add a disk group to each host
  • C Add a host to the cluster
  • D Add a cache device to each host
  • E Add a capacity drive to each disk group in all hosts
Explanation

In vSAN OSA, capacity devices provide persistent datastore storage, whereas the cache device provides cache or write-buffer capacity. A disk group supports at most one cache device and up to seven capacity devices, so the existing disk groups cannot accept another capacity drive. Creating an additional disk group on each host adds capacity devices, and adding a storage-contributing host adds its disk-group capacity to the vSAN datastore.

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