Storage administrators have been dealing with storage performance issues since hard drives were first commercialized by IBM. This problem has continued to worsen over time as processors have gotten faster and drives have not kept up. Today, processor cycle times are less than a nanosecond and drive I/O response times are more than a millisecond. Therefore, drives are more than a million times slower than processors. Computer systems have been able to bridge the gap by using large block sizes and spreading data over many drives. However, as drive capacities have increased, the drive runs out of IOPS long before it is filled to capacity. This forces the end use to purchase more storage than needed to insure that applications get the I/O response times required to meet business needs.
Download this white paper to learn how to avoid over-provisioning your storage so you can avoid additional capital expenditure and increase your ROI.
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