HP Surestore Disk Array FC60 HP SureStore E Disk Array FC60 Service Manual (A5 - Page 70
I/Os per second.
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disk enclosure). This configuration also offers full sequential performance and is more economical to implement. To scale up sequential transfer performance from the host, configure additional disk arrays. This will increase the total I/O bandwidth available to the server. Performance can also be measured by the number of I/O operations per second a system can perform. I/Os per second are important in OLTP (on-line transaction processing) applications. To maximize I/Os per second, configure the maximum number of disk modules. For the same capacity, you may elect to use a larger number of 9.1 Gbyte disk modules instead of a smaller number of higher capacity disk modules to obtain optimal I/Os per second. Note For the maximum I/Os per second, configure RAID 0/1 and the maximum number of disk modules. 70 Array Design Considerations