The storage vendor recommends adjusting the Fibre Channel HBA queue depth to resolve a performance
problem.
Which esxcli namespace can a vSphere Administrator use to adjust the queue depth?
A.
esxcli system module parameters
B.
esxcli storage core device
C.
esxcli system module set
D.
esxcli storage core adapter
Explanation:
http://www.virten.net/2016/11/vmware-esxi-6-5-esxcli-command-reference/
D
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A
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The correct one is B.
Usage: esxcli storage core device set [cmd options]
-m|–max-queue-depth= – Set device’s max queue depth.
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B is not correct, sorry.
Look here: https://code.vmware.com/doc/preview?id=5512#https://vdc-repo.vmware.com/vmwb-repository/dcr-public/780e06f7-08ce-45c3-be80-dd77124e1504/1bea0664-dbd7-4363-aee3-020bfd6fd5c8/doc/esxcli_storage.html
storage core device set
Provide control to allow a user to modify a SCSI device’s state.
Question was about FC HBA.
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A.
https://kb.vmware.com/s/article/1267
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Good find. A indeed
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Sure, A. Thanks Felipe!
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But be aware to not forget the order…
# esxcli system module parameters set -p
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Correct is B
look that
https://code.vmware.com/doc/preview?id=5512#/doc/esxcli_storage.html
the section
storage core device set
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This question is about HBA queue dept and not about datastore queue dept. A is correct.
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a)is related to vmkernel module (X)
b)is related to iSCSI device https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vcli.ref.doc_50%2Fesxcli_storage.html (X)
c)is Linux driver https://kb.vmware.com/s/article/2044993 (X)
d)Related for FC https://communities.vmware.com/thread/471690
For me is D option.
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A is the correct answer
For QLogic:
# esxcli system module parameters set -p ql2xmaxqdepth=64 -m qlnativefc
For Emulex:
# esxcli system module parameters set -p lpfc0_lun_queue_depth=64 -m lpfc
For Brocade:
# esxcli system module parameters set -p bfa_lun_queue_depth=64 -m bfa
https://kb.vmware.com/s/article/1267
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A is the correct
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Answer is A please see the link below
https://docs.vmware.com/en/VMware-vSphere/6.5/vsphere-esxi-vcenter-server-65-troubleshooting-guide.pdf#Page=58
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