nerdexam
Network_Appliance

NS0-157 · Question #414

An administrator enabled the iSCSI protocol on an SVM and created a LUN for a Windows 2012 server. When the administrator uses Windows Disk Management, the LUN cannot be found. What are two solutions

The correct answer is C. Define the iSCSI IQN in the igroup and map to the LUN. D. Start the iSCSI service on the Windows 2012 server.. This question tests the two required steps to make a NetApp iSCSI LUN visible in Windows Disk Management when it cannot be discovered.

Performance, Troubleshooting, and Security

Question

An administrator enabled the iSCSI protocol on an SVM and created a LUN for a Windows 2012 server. When the administrator uses Windows Disk Management, the LUN cannot be found. What are two solutions for this problem? (Choose two.)

Options

  • ASet up the Windows 2012 server to serve as an iSCSI target for the LUN.
  • BDefine the iSCSI Send Targets in the igroup and map to the LUN.
  • CDefine the iSCSI IQN in the igroup and map to the LUN.
  • DStart the iSCSI service on the Windows 2012 server.

How the community answered

(26 responses)
  • A
    12% (3)
  • B
    4% (1)
  • C
    85% (22)

Why each option

This question tests the two required steps to make a NetApp iSCSI LUN visible in Windows Disk Management when it cannot be discovered.

ASet up the Windows 2012 server to serve as an iSCSI target for the LUN.

The Windows 2012 server acts as an iSCSI initiator in this architecture, not a target - configuring it as a target is architecturally incorrect for a host connecting to a NetApp SAN.

BDefine the iSCSI Send Targets in the igroup and map to the LUN.

iSCSI Send Targets is a target discovery mechanism configured on the initiator side during portal discovery, not a configuration step performed within an igroup on ONTAP.

CDefine the iSCSI IQN in the igroup and map to the LUN.Correct

The Windows initiator's IQN (iSCSI Qualified Name) must be added to an igroup on the ONTAP SVM, and that igroup must be mapped to the LUN - without this authorization, the storage array will not present the LUN to the host. This igroup-to-LUN mapping is the access control mechanism that determines which initiators can see a given LUN.

DStart the iSCSI service on the Windows 2012 server.Correct

The Microsoft iSCSI Initiator service must be running on the Windows 2012 server to enable the host to establish iSCSI sessions and discover targets - without the service active, no iSCSI traffic originates from the host side at all.

Concept tested: iSCSI igroup mapping and Windows initiator configuration

Source: https://docs.netapp.com/us-en/ontap/san-admin/iscsi-service-management-concept.html

Topics

#iSCSI#igroup#LUN mapping#Windows initiator

Community Discussion

No community discussion yet for this question.

Full NS0-157 Practice