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3 System_z_hierarchical_tree
ligc edited this page 2015-07-30 04:22:49 -04:00

{{:Design Warning}}

We need to be able to represent System z in a hierarchical tree. We decided to follow the convention Power uses for their hierarchy. The zvm table will be modified to have the following columns:

node: The node name.
hcp: The hardware control point for this node.
nodetype: The node type. Valid values: cec (Central electronic complex), lpar (Logical partition), zvm (zVM host operating system), and vm (virtual machine).
parent: The parent node. For LPAR, this specifies the CEC. For zVM, this specifies the LPAR. For VM, this specifies the zVM.
userid: The z/VM user ID of this node.
comments: Any user provided notes.
disable: Set to 'yes' or '1' to comment out this row.

With this solution, each CEC, LPAR, zVM, and zLinux would have a separate row in the zvm table.

When using the chdef or mkdef command to make changes to a node attribute, the user would have to use hwnodetype (hardware nodetype) to reference ppc.nodetype or zvm.nodetype depending on the mgt value of the node. This is to distinguished which table (ppc, zvm, or nodetype) to set the nodetype column in. The nodetype keyword would continue to refer to nodetype.nodetype. Changes would be need in the data abstraction part of Schema.pm to handle hwnodetype.

News

History

  • Oct 22, 2010: xCAT 2.5 released.
  • Apr 30, 2010: xCAT 2.4 is released.
  • Oct 31, 2009: xCAT 2.3 released.
    xCAT's 10 year anniversary!
  • Apr 16, 2009: xCAT 2.2 released.
  • Oct 31, 2008: xCAT 2.1 released.
  • Sep 12, 2008: Support for xCAT 2
    can now be purchased!
  • June 9, 2008: xCAT breaths life into
    (at the time) the fastest
    supercomputer on the planet
  • May 30, 2008: xCAT 2.0 for Linux
    officially released!
  • Oct 31, 2007: IBM open sources
    xCAT 2.0 to allow collaboration
    among all of the xCAT users.
  • Oct 31, 1999: xCAT 1.0 is born!
    xCAT started out as a project in
    IBM developed by Egan Ford. It
    was quickly adopted by customers
    and IBM manufacturing sites to
    rapidly deploy clusters.