Which two tasks does the Pluggable Storage Architecture (PSA) perform? (Choose two.)

The correct answer is A. Handles I/O queueing to the logical devices. C. Handles physical path discovery and removal. When coordinating the VMware NMP and any installed third-party MPPs, the PSA performs the following tasks: Loads and unloads multipathing plug-ins. Hides virtual machine specifics from a particular plug-in. Routes I/O requests for a specific logical device to the MPP managing…

Section 3 – Configure and Administer vSphere 6.x Storage

Question

Options

AHandles I/O queueing to the logical devices.
BHandles physical path discovery, but is not involved in the removal.
CHandles physical path discovery and removal.
DHandles I/O queueing to FC storage HBAs.

How the community answered

(25 responses)

A
88% (22)
B
4% (1)
D
8% (2)

Explanation

When coordinating the VMware NMP and any installed third-party MPPs, the PSA performs the following tasks: Loads and unloads multipathing plug-ins. Hides virtual machine specifics from a particular plug-in. Routes I/O requests for a specific logical device to the MPP managing that device. Handles I/O queueing to the logical devices. Implements logical device bandwidth sharing between virtual machines. Handles I/O queueing to the physical storage HBAs. Handles physical path discovery and removal. Provides logical device and physical path I/O statistics. 51/index.jsp?topic=%2Fcom.vmware.vsphere.storage.doc%2FGUID-C1C4A725-8BE4-4875- 919E-693812961366.html

Topics

#Pluggable Storage Architecture#PSA#I/O queueing#path discovery

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