we often get performance related critical alert associated with # of reads/sec and writes/sec. Below given is the details of reads and writes with memory cache size. Please kindly let me know what causing the error.

severity : critical
reads per sec : 1651
write % : 36
kbytes per sec : 66085
hits per sec : 2458
total hit % : 82
kbytes written per sec : 21135
throughput (kb/sec) 87220
writes per sec : 1176
i/o per sec : 2916

SRDFA max cache usage : 94
micro code : 5771.104
cache size : 128gb