Overland Storage REO 9000 with ProtectionPAC Software
authority. The iqn prefix is used for iSCSI-qualified names and the eui prefix is used for Institute of Electrical and Electronics Engineers (IEEE) iSCSI names.
To ensure the free movement of network HBAs between hosts without carrying over the SCSI state information, iSCSI initiator names are associated with iSCSI nodes instead of with network adapter cards. A target name should not be tied to hardware interfaces, which can be changed. A target name should identify the logical target and must be the same for the target, regardless of the physical portion being addressed.
iSCSI-Qualified Names
iSCSI-qualified names are constructed in four parts, each separated by a decimal. The first part of the name is the iqn prefix. The second part of the name is a date code in yyyy-mm format. The third part is a reversed domain name, and the fourth part is any string (within the character set and length boundaries) that uniquely identifies the initiator or target.
For example, the iSCSI-qualified name iqn.2002- 07.com.mycompany.storage:drive1 can be broken down into four parts as shown.
Type | Date | Organization Naming Authority | Subgroup Naming Authority |
| | | |
iqn | 2002-07 | com.mycompany | storage:drive1 |
| | | |
Note: To enhance ease-of-use, the REO Appliance uses more simplified iSCSI target names.
IEEE iSCSI Names
IEEE iSCSI names are used when a manufacturer is already basing unique identifiers on worldwide names, as defined in the SCSI SPC-2 specification (ANSI [American National Standards for Information Systems], 2001. NCITS.351:2001. SCSI Primary Commands - 2 [SPC-2].). IEEE iSCSI names are constructed in two parts, separated by a decimal. The first part of the name is the eui prefix. The second part of the name is an EUI-64 address in ASCII hexadecimal (16 digits). For example, the IEEE iSCSI name eui.02004567A425678D can be broken down into two parts as shown.
Type EUI-64 Worldwide Name
eui 02004567A425678D
88 X Associating Targets (Devices) and Initiators
