Abstract Attribute-Based Prediction of File Properties(6)

We present evidence that attributes that are known to the file system when a file is created, such as its name, permission mode, and owner, are often strongly related to future properties of the file such as its ultimate size, lifespan, and access pattern.

All Hours

DEAS0315.7%(55.3%)29.2%(49.3%)

EECS0312.3%(123.8%) 3.2%(263.2%)

CAMPUS21.3%(58.9%) 2.3%(60.7%)

DEAS0316.8%(28.9%)26.6%(29.4%)

EECS0312.3%(86.7%) 3.0%(129.9%)

CAMPUS22.3%(16.7%) 2.4%(32.6%)

Table1:The average percentage of read,write,lookup,getattr,and access operations for a fourteen day trace from each server.The averages are shown for both all hours during the trace and for the peak hours(9:00am–6:00pm on weekdays).The coef?cient of variation for each hourly average is given in parentheses.

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