Reserved central storage

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  • Only General , z/VM®, and Linux-Only LPs can have non-zero amounts for this parameter. Coupling facility and Secure Service Container LPs cannot have reserved central storage amounts.
  • The reserved amount of central storage defines the additional amount of central storage that can become available to an LP when no other activated LP has this reserved storage online. Reserved storage amounts are always offline after LP activation.
  • Only LPs that specify a central storage origin can be allocated storage within the reserved central storage defined for another LP. Reserved central storage can only overlap LPs that specify an origin.
  • For LPs that do not specify central storage origins, the LP's reserved storage is available to be brought online to the LP whenever there is any storage that is not being used by any other LPs.
  • For LPs that do specify a central storage origin, if some of the reserved central storage is not available, the reserved central storage that is available can still be configured online starting at the reserved storage origin.
  • Specifying a zero for the reserved size indicates the LP's central storage cannot get any larger than the initial size for the duration of the activation.