Desktop and mobile Architecture for System Hardware

Desktop and mobile Architecture for System Hardware (DASH) is a Distributed Management Task Force (DMTF) standard.

Desktop and Mobile Architecture for System Hardware
StatusPublished
Year started2007; 14 years ago (2007)
Latest version1.2
June 2015; 6 years ago (2015-06)
OrganizationDistributed Management Task Force
Related standardsWS-Management
DomainSystems management
AbbreviationDASH
Websitewww.dmtf.org/standards/dash

DescriptionEdit

In April 2007 the Desktop and Mobile Working Group (DMWG) of the DMTF started work on an implementation requirements specification (DSP0232). Version, DASH 1.1, was published in December 2007 and became a DMTF standard in June 2009. Version, DASH 1.2, was published in December 2014 and became standard in June 2015.

In-service and out-of-service systems can be managed, with manageability aligned between the modes, independent of operating system state. Both HTTP and HTTPS management ports are supported: TCP ports 623 and 664, respectively, for connections from remote management consoles to DASH out-of-band management access points (MAP).

The DMTF Common Information Model (CIM) schema defines the supported DASH management data and operations. There are 28 CIM profiles supported in the DASH 1.1 specification. 9 new profiles were added and 4 profiles were updated in DASH 1.2 specifications.

DASH uses the DMTF's Web Services for Management (WS-Management) protocol for communication of CIM objects and services.

The web services expose a common set of operations for system management:

  • DISCOVER
  • GET, PUT, CREATE and DELETE management resources, such as property values & settings
  • ENUMERATE for tables and collections
  • SUBSCRIBE to and DELETE events (indication delivery)
  • EXECUTE for services (method invocation)

Management access point discoveryEdit

Discovery of access points is a two phase process:

  • Phase 1: an RMCP Presence Ping request is sent (broadcast, multicast or unicast) and an RMCP Presence Pong response is received indicating support for WS-Management.
  • Phase 2: a WS-Management "Identify" request is sent and response is received indicating support for DASH, which version, and which security profiles.

ProtocolsEdit

DASH management protocols layers include:

Layer Type
DASH Management Service App
DASH CIM Profiles App
WS-Management CIM Binding App
Data Transfer (WS-Eventing, WS-Enum, WS-Transfer, WS-Addressing) WS Layer
Security Profiles WS Layer
Simple Object Access Protocol (SOAP) / XML SOAP
HTTP/TLS SOAP
TCP SOAP
IP Network
MAC/PHY

ProfilesEdit

The DMTF CIM Profiles supported by the DASH 1.1 specification:[1]

The DMTF CIM Profiles supported by the DASH 1.2 specification:[2]

DASH is designed for desktop and mobile computer systems; a related DMTF standard for management of server computer systems is the Systems Management Architecture for Server Hardware (SMASH), with a similar set of CIM Profiles.

Intel Active Management Technology is a compliant implementation of DASH.

See alsoEdit

ReferencesEdit

External linksEdit