Cost Effective Storage using Extent Based Dynamic Tiering

  title={Cost Effective Storage using Extent Based Dynamic Tiering},
  author={Jorge Guerra and Himabindu Pucha and Joseph S. Glider and Wendy Belluomini and Raju Rangaswami},
Multi-tier systems that combine SSDs with SAS/FC and/or SATA disks mitigate the capital cost burden of SSDs, while benefiting from their superior I/O performance per unit cost and low power. Though commercial SSD-based multi-tier solutions are available, configuring such a system with the optimal number of devices per tier to achieve performance goals at minimum cost remains a challenge. Furthermore, these solutions do not leverage the opportunity to dynamically consolidate load and reduce… CONTINUE READING
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