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FAQ-Introduction to the SmartCache Feature of OceanStor T Series and V3 Series

Publication Date:  2018-10-10 Views:  287 Downloads:  0
Issue Description
Introduction to the SmartCache feature of OceanStor T series and V3 series.
SmartCache is a caching technology that uses SSDs as read cache resources.

SSDs read random small I/Os quickly. To fully use this advantage, SmartCache creates an intelligent cache pool consisting of SSDs and migrates frequently accessed random small I/Os from conventional hard disk drives (HDDs) to the high-speed cache pool. The data read speed of SSDs is much higher than that of HDDs. Therefore, SmartCache greatly accelerates access to hot data, improving the system performance.

SmartCache divides an intelligent cache pool into partitions that provide fine-grained SSD cache resources for services. Different services can share one partition or use different partitions. The partitions are isolated and do not affect each other. More cache resources can be allocated to mission-critical applications to ensure their performance.

The use of SmartCache does not interrupt ongoing services or compromise data reliability.