IBM High Availability Cluster Multiprocessing

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
IBM PowerHA SystemMirror
DeveloperIBM
Stable release
7.2.7 / December 9, 2022; 3 years ago (2022-12-09)[1]
Repository
  • {{URL|example.com|optional display text}}Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
Engine
    Lua error in Module:EditAtWikidata at line 29: attempt to index field 'wikibase' (a nil value).
    Operating systemAIX
    TypeHigh-availability cluster
    Licenseproprietary
    Websitewww-03.ibm.com/systems/power/software/availability/aix/

    IBM PowerHA SystemMirror (formerly IBM PowerHA and HACMP) is IBM's solution for high-availability clusters on the AIX Unix and Linux for IBM System p platforms and stands for High Availability Cluster Multiprocessing. IBM's HACMP product was first shipped in 1991 and is now in its 20th release - PowerHA SystemMirror for AIX 7.1.

    PowerHA can run on up to 32 computers or nodes, each of which is either actively running an application (active) or waiting to take over when another node fails (passive). Data on file systems can be shared between systems in the cluster.

    PowerHA relies heavily on IBM's Reliable Scalable Cluster Technology (RSCT). PowerHA is an RSCT aware client. RSCT is distributed with AIX. RSCT includes a daemon called group services that coordinates the response to events of interest to the cluster (for example, an interface or a node fails, or an administrator makes a change to the cluster configuration). Up until PowerHA V6.1, RSCT also monitored cluster nodes, networks and network adapters for failures using the topology services daemon (topsvcs). In the current release (V7.1), RSCT provides coordinate response between nodes, but monitoring and communication are provided by the Cluster Aware AIX (CAA) infrastructure.

    The 7.1 release of PowerHA relies heavily on CAA, a clustering infrastructure built into the operating system and exploited by RSCT and PowerHA. CAA provides the monitoring and communication infrastructure for PowerHA and other clustering solutions on AIX, as well as cluster-wide event notification using the Autonomic Health Advisor File System (AHAFS) and cluster-aware AIX commands with clcmd. CAA replaces the function provided by Topology Services (topsvcs) in RSCT in previous releases of PowerHA/HACMP [1].


    IBM PowerHA SystemMirror Timeline

    [edit | edit source]

    <timeline>

    ImageSize = width:900 height:240 PlotArea = right:30 left:30 bottom:60 top:30 DateFormat = dd/mm/yyyy Period = from:01/01/2000 till:01/01/2018 TimeAxis = orientation:horizontal Legend = orientation:vertical position:bottom columns:2 Colors = 

        id:production value:green            Legend:Production
    id:lightline  value:rgb(0.8,0.8,0.8)

    BackgroundColors = canvas:white ScaleMajor = gridcolor:lightline unit:year increment:1 start:01/01/2000

    Define $vshift = 15 # move text above the bars

    PlotData= 

     bar:      
   color:production mark:(line,white) align:left fontsize:M
   from:01/01/2010 till:01/01/2018 shift:(-55,-4) text:"PowerHA SystemMirror 7"
   barset:break
     color:production
     from:01/01/2010 till:17/02/2012 shift:(-15,$vshift) text:".1"
   barset:break
     color:production
     from:17/02/2012 till:01/10/2015 shift:(-15,$vshift) text:".1.1"
   barset:break
     color:production
     from:01/10/2015 till:11/10/2016 shift:(-15,$vshift) text:".2"
   barset:break
     color:production
     from:11/10/2016 till:01/01/2018 shift:(-15,$vshift) text:".2.1"

     bar:     
   color:production mark:(line,white) align:left fontsize:M
   from:01/10/2009 till:01/01/2010 shift:(-55,-4) text:"PowerHA SystemMirror 6"

     bar:    
   color:production mark:(line,white) align:left fontsize:M
   from:01/07/2003 till:27/10/2009 shift:(-55,-4) text:"HAMCP 5"

     bar:   
   color:production mark:(line,white) align:left fontsize:M
   from:01/06/2000 till:01/07/2003 shift:(-55,-4) text:"HACMP 4"

    TextData = 

      pos:(275,255)
  fontsize:L
  textcolor:black
  text:"IBM PowerHA SystemMirror Release Timeline"

    </timeline>

    IBM PowerHA SystemMirror Releases

    [edit | edit source]
    • PowerHA SystemMirror 7
      • PowerHA SystemMirror 7.2, released in October 1, 2015; 10 years ago (2015-10-01).[2]
        • PowerHA SystemMirror 7.2.1, released in October 11, 2016; 9 years ago (2016-10-11).[2]
          • New User Interface.[3]
      • PowerHA SystemMirror 7.1 was released in 2010; 16 years ago (2010), and uses the Cluster Aware AIX (CAA) infrastructure available in AIX V6.1 TL 6 and AIX 7.1 [3]
        • PowerHA SystemMirror 7.1.1 February 17, 2012; 14 years ago (2012-02-17).[4]
    • PowerHA 6
      • PowerHA 6.1, Rebranded again to IBM PowerHA SystemMirror for AIX, GA Oct 27 2009, [4]
        • Now in Standard and Enterprise Editions
        • EMC SRDF support
        • GLVM 2-site Configuration Wizard
        • Improvements to SMIT panels and File Collections
        • IPv6 support
    • HACMP 5
      • HACMP 5.5, Rebranded to IBM PowerHA, GA Nov 2008, [5]
        • Asynchronous replication support
        • Updated support for DLPAR/CUOD to include support for IBM POWER5 and POWER6 processors
        • Support for LPAR mobility to relocate critical applications
        • PowerHA/XD PPRC support of Global Mirror when used with SAN Volume Controller
        • Function to allow PowerHA/XD PPRC to support multiple storage subsystems at each site
        • Better integration with the AIX operating system by avoiding modifications to the TCP/IP bringing up process
      • HACMP 5.4.1, Nov 2007, announcement
        • AIX Workload Partitions support (WPAR)
        • New GLVM monitoring
        • NFSv4 support improvements
      • HACMP 5.4, July 2006, announcement
        • Web-based GUI
        • Nondisruptive HACMP cluster startup, upgrades, and maintenance
      • HACMP 5.3, August 2005
      • HACMP 5.2, July 2004
      • HACMP 5.1, July 2003
    • HACMP 4

    See also

    [edit | edit source]

    References

    [edit | edit source]
    1. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    2. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    3. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    4. ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
    [edit | edit source]
    Retrieved from "http://70.231.62.181/index.php?title=IBM_High_Availability_Cluster_Multiprocessing&oldid=7888729"