This section provides summary information about the large I/O requests in all caches. If “Large I/Os Denied” is high, investigate individual caches to determine the cause.
“Large I/Os Performed” measures the number of times that the requested large I/O was performed. “% of total” is the percentage of large I/O requests performed as a percentage of the total number of I/O requests made.
“Large I/Os Denied” reports the number of times that large I/O could not be performed. “% of total” reports the percentage of large I/O requests denied as a percentage of the total number of requests made.
“Total Large I/O Requests” reports the number of all large I/O requests (both granted and denied) for all caches.