Reliability Analysis of Energy-Efficient Parallel Storage Systems

摘要: Existing reliability models evaluate the lifetime of storage systems well. However, few aim to analysis parallel systems, especially equipped with energy-efficient solutions. MREED model provides an inspiring idea for RAIDs. Unfortunately, has its disadvantage that it can RAID-0 only, in which a basic method data-stripping is applied. In this paper, we extend cover most RAID setups including RAID-1, introduces disk-mirroring techniques, and RAID-5, applies data-parity techniques based on schemes data recovery purpose. The then applied existing well-known power-aware system-PARAID. Experimental results indicate locality affection parity impaction PARAID. Furthermore, investigate fundamental trade-off between energy-efficiency terms energy-saving systems. A tradeoff curve provided justify whether worth sacrifice better energy efficiency.