5V0-22.23 · Question #76
An existing vSAN OSA cluster has this specification: - Four ESXi hosts with all flash configuration - Each with two disk groups - Each disk group with one cache device and four capacity devices…
The correct answer is C. Adding one more disk group per host with the same configuration E. Adding an ESXi host with identical device configuration. Adding a third disk group per host (C) is ideal because the available 5 device slots exactly match the required configuration (1 cache + 4 capacity), boosting both capacity and I/O performance without touching existing disk groups or disrupting running workloads. Scaling out by…
Question
An existing vSAN OSA cluster has this specification:
- Four ESXi hosts with all flash configuration
- Each with two disk groups
- Each disk group with one cache device and four capacity devices
- There are five more device slots available per host
The CTO would like to provision new applications, and these will need more capacity and performance. Which two methods should be used by the vSAN administrator to meet this goal with the least amount of impact? (Choose two.)
Options
- AReplacing all capacity devices with a similar larger device
- BReplacing all cache devices with a larger device
- CAdding one more disk group per host with the same configuration
- DAdding faster cache devices
- EAdding an ESXi host with identical device configuration
How the community answered
(63 responses)- A14% (9)
- B25% (16)
- C51% (32)
- D10% (6)
Explanation
Adding a third disk group per host (C) is ideal because the available 5 device slots exactly match the required configuration (1 cache + 4 capacity), boosting both capacity and I/O performance without touching existing disk groups or disrupting running workloads. Scaling out by adding a new ESXi host (E) is equally non-disruptive - it increases total cluster capacity, performance, and fault domain headroom simultaneously. Options A and B both require evacuating data and taking disk groups offline, which is highly impactful; additionally, replacing capacity-tier devices (A) doesn't improve performance, and in an all-flash cluster, a larger cache device (B) yields minimal gain since capacity - not cache size - is the limiting factor. Option D suffers the same flaw as B: faster cache devices don't add capacity and swapping them out is disruptive. Memory tip: On exam questions asking for "least impact," look for purely additive actions - options that only add resources without touching existing ones always win over options that require replacing or evacuating existing devices.
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