The LFAREA parameter specified a nonzero percentage, which resulted in a request for zero 1 MB and zero 2 GB pages. This can occur if the specified percentage is small, or if there is a small or insufficient amount of available online storage. If xM, xG, xT, or x% syntax is specified, a percentage request is calculated by first multiplying the percentage by the online real storage, and then subtracting 2G: (percentage * online real storage) – 2G. However, if 1M= or 2G= syntax is specified, a percentage request is calculated by first subtracting 4G from the online real storage, and then multiplying that by the percentage: (online real storage – 4G) * percentage. The result is then rounded down to the nearest respective 1 MB or 2 GB page boundary, which could result in a zero value.
For example, on a 13G system, a request for LFAREA=(2G=10%) is calculated as 0.10 * (13G – 4G) = 0.9G, which rounded down to the nearest 2G page boundary becomes zero. In this example, a request for at least 23% is required to reserve at least one page, which is calculated as 0.23 * (13G – 4G) = 2.07G which is then rounded down to 2G. This message is issued when either a nonzero target percentage or a nonzero minimum percentage results in a request for zero target or zero minimum pages.
Ensure that the correct IEASYSxx member is used for this IPL. If the correct IEASYSxx member is used, but sufficient storage is not available, contact your system programmer.
If 1 MB or 2 GB pages are required, ensure that enough storage is installed for the z/OS® image and that the requested percentage is large enough to reserve the intended number of pages.
Real storage manager (RSM)
IAXMT
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