Trade Of Between SSD and HDD
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 7
Abstract
Energy, device endurance and Performance for storage systems are the trade-offs among them. Designs optimized for workload or one dimension often suffer from another. Therefore, it is necessary to study the trade-offs to enable adaptation to workloads and dimensions. Hybrid drives have been studied more closely, due to flash SSD has emerged. However, hybrids are mainly structured for large throughput, efficient energy consumption, or doing the better endurance-leaving quantitative study on the trade-offs undescribed. To help study the trade-offs, past endurance studies also less a concrete model. Previous designs are often based on nonflexible policies that cannot take easily to changing conditions. We structured and developed GreenDM, an all type of hybrid drives that forms Flash-based SSDs with traditional HDDs. For hot data, cache or as primary storage can be used by SSD. We keep our model endurance combine with GreenDM to go through these trade-offs. GreenDM not requires modifications and presents a block interface to existing software. GreenDM endeavors tunable parameters to not able the system to accommodate too many workloads. Using commodity SSD and HDD drives, we have developed, structured and carefully evaluated GreenDM with some workloads.
Authors and Affiliations
Anagha Ramnath Kadve
Keywords
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