CPCs with the Sysplex Failure Manager (SFM)

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The Sysplex Failure Manager (SFM) allows you to reset and reconfigure one or more logical LPs and their related storage. SFM allows workload redistribution from the failed primary system to the backup system without operator intervention. For a detailed description of how SFM works, see z/OS® MVS Setting Up a Sysplex.

Note: These SFM reset/deactivate functions are not compatible with the z/OS AutoIPL function (which is supported on z/OS 1.10 and higher). For example, if AutoIPL is being used on a particular z/OS system (LP) to automatically re-IPL that system if it requests a disabled wait state to be loaded. It is not desirable to have that same LP be the target of one of these cross-partition Reset or Deactivation functions, because these actions prevent the system from re-IPLing itself successfully through AutoIPL.

To allow an LP to initiate these functions, use the Customize/Delete Activation Profiles task to open a reset profile to authorize an LP to issue instructions to other LPs. The Cross partition authority check box is located on the Security page for the LP.

The following functions exist for SFM:

  • Cross Partition System Reset:

    This function causes a specified LP to be reset. The reset is accomplished via the RESETTIME(nnn) keyword in the SYSTEM statement of the z/OS SFM policy.

  • Cross Partition Deactivation:

    This function causes a specified LP to be deactivated. The deactivation is accomplished via the DEACTTIME(nnn) keyword in the SYSTEM statement of the SFM policy, and also, the RECONFIG statement in the SFM policy with a specific TARGETSYS(sysname) specified.

  • Cross Partition Nonspecific Deactivation:

    This function causes all logical partitions which are currently using any portion of the reconfigurable central storage of the issuing partition to be deactivated. The issuing partition is not deactivated. The nonspecific deactivation is accomplished via the RECONFIG statement in the SFM policy with a non-specific TARGETSYS(ALL) issued.

The Automatic Reconfiguration Facility (ARF) function is a hardware/LP function that is part of the cross-partition authority control setting. ARF functions are used by SFM policy functions within z/OS, when RESETTIME, DEACTTIME, or the RECONFIG statement is coded in the SFM policy.