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Second, parity consumes space on the device, which results in write amplification from less efficient garbage collection at higher space utilization.<\/jats:p>\n          <jats:p>This article analyzes the effectiveness of SSD-based RAID and discusses the potential benefits and drawbacks in terms of reliability. A Markov model is presented to estimate the lifetime of SSD-based RAID systems in different environments. In a small array, our results show that parity protection provides benefit only with considerably low space utilizations and low data access rates. 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