When coordinating the VM NMP and any installed 3-party MIP, what operations does the PSA perform?
A.
Implements logical devices bandwidth sharing
B.
Process I/O request to logical devices
C.
Associate physical path with logical devices
D.
Manage physical path claiming and unclaiming
Explanation:
it is A, as B, C and D are performed by NMP. For reference please refer to page 23-24 of this document http://www.vmware.com/pdf/vsphere4/r40/vsp_40_san_cfg.pdf
Yes correct . http://pubs.vmware.com/vsphere-50/index.jsp?topic=/com.vmware.vsphere.upgrade.doc_50/GUID-DD8C6FF2-1949-4C82-A4BA-578988CA7BA1.html
The multipathing modules perform the following operations:
■ Manage physical path claiming and unclaiming.
■ Manage creation, registration, and deregistration of logical devices.
■ Associate physical paths with logical devices.
■ Support path failure detection and remediation.
■ Process I/O requests to logical devices:
■ Select an optimal physical path for the request.
■ Depending on a storage device, perform specific actions necessary to handle path failures and I/O command retries.
■ Support management tasks, such as reset of logical devices.
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PSA = Pluggable Storage Architecture
NMP = Native Multipathing
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1011375
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hmmm… According to this document A and B are correct answers.
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