2V0-622D · Question #183
What is a potential downside of having more than four storage paths per datastore?
The correct answer is B. limits the number of LUNs per host. Each storage path to a LUN consumes a path slot on the ESXi host; using more than four paths per datastore reduces the total number of LUNs the host can connect to.
Question
What is a potential downside of having more than four storage paths per datastore?
Options
- Aincreases storage latency for VM
- Blimits the number of LUNs per host
- Climits the storage protocols
- Dlimits the path selection policies
How the community answered
(39 responses)- A10% (4)
- B82% (32)
- C5% (2)
- D3% (1)
Why each option
Each storage path to a LUN consumes a path slot on the ESXi host; using more than four paths per datastore reduces the total number of LUNs the host can connect to.
Additional paths themselves do not add storage latency; latency is governed by the storage array and network, not the path count.
ESXi enforces a maximum total path count per host (e.g., 1024 paths in many configurations); with more than four paths per LUN, the finite path budget is exhausted faster, directly limiting how many LUNs can be presented to that host.
The number of paths per LUN does not restrict which storage protocols (iSCSI, FC, NVMe-oF) can be used on the host.
Path selection policies (Round Robin, Fixed, MRU) are configured per datastore and are not limited by how many paths are configured.
Concept tested: ESXi maximum storage path limits per host
Source: https://docs.vmware.com/en/VMware-vSphere/7.0/com.vmware.vsphere.storage.doc/GUID-A2575B85-87FA-4B62-9B26-5E1E9994E6E6.html
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