A Boolean data cell is a value provided by the Performance Manager software that represents the result of applying a commonly needed condition to a domain (or a subset of internal records). A Boolean data cell has a value of true (1.0) or false (0).
For example, the ANY_DISK_OVER_THRESHOLD data cell is set to either true or false. If it is set to TRUE, at least one disk for the current Performance Manager interval record has exceeded the I/O rate threshold for the given disk type. If this Boolean operator did not exist, you would have to use an expression similar to the following code:
DISK_SCAN(DISK_IO_RATE .GE. DISK_IO_RATE_THRESHOLD) .GT. 0
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