Overland Storage REO 9000 - Manual (Page 88)

88 X Associating Targets (Devices) and Initiators
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.
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 Date Organization Naming Authority Subgroup Naming Authority
iqn 2002-07 com.mycompany storage:drive1
Type EUI-64 Worldwide Name
eui 02004567A425678D