rfc-3980

T11 Network Address Authority (NAA) Naming Format for iSCSI Node Names

M. Krueger, M. Chadalapaka, R. Elliott

date2005-02 streamIETF areatsv wgips statusPROPOSED STANDARD pages8 canonicalhttps://www.rfc-editor.org/rfc/rfc3980 doi10.17487/RFC3980

Internet Small Computer Systems Interface (iSCSI) is a SCSI transport protocol that maps the SCSI family of protocols onto TCP/IP. This document defines an additional iSCSI node name type format to enable use of the "Network Address Authority" (NAA) worldwide naming format defined by the InterNational Committee for Information Technology Standards (INCITS) T11 - Fibre Channel (FC) protocols and used by Serial Attached SCSI (SAS). This document updates RFC 3720. [STANDARDS-TRACK]

obsoleted by

rfc-7143 — Internet Small Computer System Interface (iSCSI) Protocol (Consolidated)

updates

rfc-3720 — Internet Small Computer Systems Interface (iSCSI)

Extracted elements (6)

design-rationale §3

The NAA naming format was added to iSCSI to enable SCSI storage devices with both iSCSI and SAS ports to share a single NAA-based SCSI device name across transports. NAA is already the most commonly used identifier format for SCSI transports (FC and SAS), and direct representation avoids translation across multiple namespaces.

interoperability-note §3

SAM-3 specifies that a SCSI device shall have no more than one SCSI device name in the SCSI name string format regardless of the number of SCSI transport protocols it supports. Adding the NAA format to iSCSI enables a single transport-independent device name to be used across iSCSI and SAS transports.

interoperability-note §1

This document updates RFC 3720 by adding the "naa." type as a valid iSCSI node name format, complementing the previously defined IQN and EUI-64 formats. iSCSI implementations MUST accept names of this new type in addition to existing formats.

protocol-element §4.1

The iSCSI NAA naming format uses the prefix "naa." followed by an NAA identifier represented in ASCII-encoded hexadecimal digits. The NAA identifier is defined by INCITS T11 FC-FS and may be either 64-bit (16 hex chars) or 128-bit (32 hex chars) in length.

ip, security

security-consideration §6

The iSCSI NAA naming format does not introduce any new security concerns beyond those of other iSCSI naming formats. Implementers should refer to RFC 3720, Section 8, for security considerations applicable to the iSCSI protocol.

security, ip

wire-format §4.1

A 64-bit NAA iSCSI name consists of the prefix "naa." followed by 16 ASCII hexadecimal characters, e.g., "naa.52004567BA64678D". A 128-bit NAA iSCSI name uses 32 ASCII hexadecimal characters, e.g., "naa.62004567BA64678D0123456789ABCDEF". Maximum name length is 32 hex characters (128-bit NAA), well within the iSCSI node name size limit.