Users are experiencing performance issue when updating their database hosted on a virtual machine. The administrator determines that I/O is high across all HBAs on the ESXi host containing the virtual machine.
What actions will most likely correct the issue without significantly impacting other users?
A.
manually configure the disk multipathing policies to fix for each datastore
B.
migrate the virtual machine to a less used datastore with storage vMotion
C.
use vMotion to migrate the virtual machine to another ESXi host
D.
map additional LUNs to the ESXi host and extend the datastores
HBA deals with storage. Correct answer should be B.
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Moving it to another datastore accessed by the same host does not relieve HBA contention across the storage HBAs. You’re just changing lanes on the same congested freeway. Moving it to another host is analogous getting on another highway altogether.
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It says “on the ESXi host containing the virtual machine” which indicates a problem with the host server adapter. Ryan is correct.
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Ryan is correct but it’s not indicating an issue with the HBA’s, it’s indicating that they are saturated. That statement tells the questionee that no action on the host is going to resolve the issue because prioritization or multipathing cannot resolve the issue of over saturation of the connection, regardless of if it’s storage or network or whatever. Full is full and no amount of dancing around is going to change that.. the only option is to offload the traffic to a lesser used host.
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