Which information can the administrator use to identify iSCSI nodes?
A. MAC address
B. IQN
C. WWN
D. LUN ID
Correct Answer: B
Explanation/Reference:
Explanation:
iSCSI uses a special unique name to identify an iSCSI node, either target or initiator. This name is similar to the WorldWide Name (WWN) associated with Fibre Channel devices and is used as a way to universally identify the node. iSCSI names are formatted in two different ways. The most common is the IQN format.
The IQN format takes the form iqn.yyyy-mm.naming-authority:unique name, where:
yyyy-mm is the year and month when the naming authority was established.
naming-authority is usually reverse syntax of the Internet domain name of the naming authority. For example, the iscsi.vmware.com naming authority could have the iSCSI qualified name form of iqn.1998-01.com.vmware.iscsi. The name indicates that the vmware.com domain name was registered in January of 1998, and iscsi is a subdomain, maintained by vmware.com. unique name is any name you want to use, for example, the name of your host. The naming authority must make sure that any names assigned following the colon are unique, such as:
iqn.1998-01.com.vmware.iscsi:name1
iqn.1998-01.com.vmware.iscsi:name2
iqn.1998-01.com.vmware.iscsi:name999
Incorrect Answers:
A: A MAC address is used to identify a network adapter. Every network adapter has a unique MAC (Media Access Control) address. A MAC address is not used to identify a SCSI node. Therefore, this answer is incorrect.
C: A WWN (World Wide Name) is used to identify a Fibre Channel device. A WWN is not used to identify a SCSI node. Therefore, this answer is incorrect.
D: A LUN ID (Logical Unit Number ID) is used to identify a LUN (volume) on a SAN. A LUN ID is not used to identify a SCSI node. Therefore, this answer is incorrect.
References:
http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.storage.doc/GUID-686D92B6-A2B2-4944-8718-F1B74F6A2C53.html
Explanation/Reference:
Explanation:
iSCSI uses a special unique name to identify an iSCSI node, either target or initiator. This name is similar to the WorldWide Name (WWN) associated with Fibre Channel devices and is used as a way to universally identify the node. iSCSI names are formatted in two different ways. The most common is the IQN format.
The IQN format takes the form iqn.yyyy-mm.naming-authority:unique name, where:
yyyy-mm is the year and month when the naming authority was established.
naming-authority is usually reverse syntax of the Internet domain name of the naming authority. For example, the iscsi.vmware.com naming authority could have the iSCSI qualified name form of iqn.1998-01.com.vmware.iscsi. The name indicates that the vmware.com domain name was registered in January of 1998, and iscsi is a subdomain, maintained by vmware.com. unique name is any name you want to use, for example, the name of your host. The naming authority must make sure that any names assigned following the colon are unique, such as:
iqn.1998-01.com.vmware.iscsi:name1
iqn.1998-01.com.vmware.iscsi:name2
iqn.1998-01.com.vmware.iscsi:name999
Incorrect Answers:
A: A MAC address is used to identify a network adapter. Every network adapter has a unique MAC (Media Access Control) address. A MAC address is not used to identify a SCSI node. Therefore, this answer is incorrect.
C: A WWN (World Wide Name) is used to identify a Fibre Channel device. A WWN is not used to identify a SCSI node. Therefore, this answer is incorrect.
D: A LUN ID (Logical Unit Number ID) is used to identify a LUN (volume) on a SAN. A LUN ID is not used to identify a SCSI node. Therefore, this answer is incorrect.
References:
http://pubs.vmware.com/vsphere-55/index.jsp#com.vmware.vsphere.storage.doc/GUID-686D92B6-A2B2-4944-8718-F1B74F6A2C53.html
