You can view information about read/write operations for a database.
“Basic Architectural Elements” in the Oracle Essbase Database Administrator's Guide
Improving Essbase Performance in the Oracle Essbase Database Administrator's Guide
display database (MaxL) in the Oracle Essbase Technical Reference
getdbstats (ESSCMD) in the Oracle Essbase Technical Reference
getperfstats (ESSCMD) in the Oracle Essbase Technical Reference