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Disk parameters for the original IBM PC floppy disk and a Western Digital WD 18300 hard disk Things to Note • Average seek time is approx 12 times better • Rotation time is 24 times faster • Represents a gradual engineering improvement • Operation becoming more critical as disk latency lags behind processor speed improvement – Processor has gone from 4.77(More)
We propose a new paradigm for network file system design: <italic>serverless network file systems</italic>. While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services. Any machine in the system can store, cache, or control any block of data. Our(More)
, File system designers today face a dilemma. A log-structured file system (LFS) can offer superior performance for many common workloads such as those with frequent small writes, read traffic that is predominantly absorbed by the cache, and sufficient idle time to clean the log. However, an LFS has poor performance for other workloads, such as random(More)
We demonstrate that high-level file system events exhibit self-similar behaviour, but only for short-term time scales of approximately under a day. We do so through the analysis of four sets of traces that span time scales of milliseconds through months, and that differ in the trace collection method, the filesystems being traced, and the chronological(More)
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