An administrator of a secure environment needs to add an iSCSI target to a new ESXi host using
the vSphere client. The administrator has configured discovery and performed a rescan operation,
but the iSCSI target does NOT appear.
Which action should the administrator take for the target to appear in the vSphere client?
A.
Configure appropriate CHAP authentication settings
B.
Bind a VMkernel port to the iSCSI initiator
C.
Configure Jumbo Frames prior to adding iSCSI targets
D.
Enable iSCSI in a vSphere Distributed Switch configuration
Explanation:
A. is correct.
Perform a rescan each time you complete the following tasks:
– Create new LUNs on a SAN.
– Change the LUN masking.
– Reconnect a cable.
– Make a change to a host in a cluster.
– Change CHAP settings or add new discovery addresses.
Study the following carefully!
http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.troubleshooting.doc/GUID-679ADB4C-6352-49B2-B429-CC545ABF5F7B.html
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“… and performed a rescan operation” appears to imply that port binding has been done. If, however, it’s not the case, then ‘B’ could be a plausible choice too.
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B is not plausible because of initial statement – An administrator of a “secure” environment – so that tells you that iscsi uses authentication(CHAP)
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To J: so following your logic, in a “secure” environment port binding is not required 😉
Certainly port binding is a prerequisite and must be done prior to any further configuration, including authentication.
The key to a correct answer seems to be that the administrator has **ALREADY** “configured discovery and performed rescan operation”, i.e. port binding has been already done.
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port binding is for multi path
CHAP is for security
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http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.troubleshooting.doc/GUID-679ADB4C-6352-49B2-B429-CC545ABF5F7B.html
iSCSI イニシエータの再スキャン
次のいずれかのタスクを実行するたびに再スキャンします。
■SAN に新しい LUN を作成した場合。
■LUN マスキングを変更した場合。
■ケーブルを接続しなおした場合。
■クラスタのホストを変更した場合。
■CHAP 設定を変更した場合、または新しい検出アドレスを追加した場合。
詳細については、『vSphere ストレージ』ドキュメントを参照してください。
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