Storage Management White Papers
Improving Recoverability in Multi-Tier Storage Systems
Overview Enterprise storage systems typically contain multiple storage tiers, each having its own performance, reliability, and recoverability. The primary motivation for this multi-tier organization is cost, as storage tier costs vary considerably. This paper describes a file system called TierFS that stores files at multiple storage tiers while providing high recoverability at all tiers. To achieve this goal, TierFS uses several novel techniques that leverage coupling between multiple tiers to reduce data loss, take consistent snapshots across tiers, provide continuous data protection, and improve recovery time. The paper evaluates TierFS with analytical models, showing that TierFS can provide better recoverability than a conventional design of similar cost.
| Publisher | Harvard University | File Format | |
|---|---|---|---|
| Date Published | June 2007 | Downloads | 1 |
| Format | White Papers | ||
| Topics | |||
-
Did you find this white paper useful? 1 out of 2 users found this white paper useful
White Paper RSS
Download
Register
