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How many buffers are allotted to VSAM KSDS and ESDS?
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2 data buffers by default for ESDS. For KSDS it allots 2
data buffers and 1 index buffers. each buffer is about 4k.
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Yes. Because the alternate key would first locate the primary key, which in turn locates the actual record. Needs twice the number of I/Os.
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