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Network_Appliance

NS0-157 · Question #353

You create a Vserver for iSCSI LUNS. When you issue the Vserver iscsi show command it reports: "This table is currently empty". What do you need to do to see the IQN for the vserver?

The correct answer is C. Enable the iSCSI protocol on the vserver. The 'vserver iscsi show' command returns empty because the iSCSI service has not been enabled on the vserver, which is the step that generates the IQN. Until the service is created, no iSCSI identity exists to display.

Network Configuration and Data Access

Question

You create a Vserver for iSCSI LUNS. When you issue the Vserver iscsi show command it reports: "This table is currently empty". What do you need to do to see the IQN for the vserver?

Options

  • ACreate an iSCSI LIF for the vserver
  • BCreate a LUN in a vserver volume
  • CEnable the iSCSI protocol on the vserver
  • DGenerate an iqn for the Vserver with the make nodename command
  • ELicense iSCSI on the vserver

How the community answered

(43 responses)
  • A
    7% (3)
  • B
    2% (1)
  • C
    74% (32)
  • D
    14% (6)
  • E
    2% (1)

Why each option

The 'vserver iscsi show' command returns empty because the iSCSI service has not been enabled on the vserver, which is the step that generates the IQN. Until the service is created, no iSCSI identity exists to display.

ACreate an iSCSI LIF for the vserver

Creating an iSCSI LIF provides a network endpoint for iSCSI traffic but does not create the iSCSI service or generate an IQN for the vserver.

BCreate a LUN in a vserver volume

Creating a LUN is a storage provisioning step that is independent of the iSCSI service and does not trigger IQN generation on the vserver.

CEnable the iSCSI protocol on the vserverCorrect

In ONTAP, the IQN for a vserver is automatically generated when the iSCSI protocol service is enabled via the 'vserver iscsi create' command. Until this service is explicitly started, the iSCSI service table remains empty and no IQN is assigned. Creating LIFs, LUNs, or applying licenses does not trigger IQN generation - only enabling the service itself does.

DGenerate an iqn for the Vserver with the make nodename command

There is no 'make nodename' command in ONTAP - the IQN is automatically generated by the system when the iSCSI service is enabled, not through a manual generation command.

ELicense iSCSI on the vserver

iSCSI licensing is a cluster-level prerequisite, but the license alone does not enable the iSCSI service or generate an IQN on any individual vserver.

Concept tested: Enabling iSCSI service to generate vserver IQN

Source: https://docs.netapp.com/us-en/ontap/san-admin/enable-iscsi-protocol-vserver-task.html

Topics

#iSCSI#vserver protocol#IQN#protocol enablement

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