This paper analyzes the error behavior of a 3.2TB disk storage system. We report reliability data for 18 months of the prototype's operation, and analyze 6 months of error logs from nodes in the prototype. We found that the disks drives were among the most reliable components in the system. We were also able to divide errors into eleven categories, comprising disk errors, network errors and SCSI errors that appeared repeatedly across all nodes. We also gained insight into the types of error messages reported by devices in various conditions, and the effects of these events on the operating system. We also present data from four cases of disk drive failures. These results and insights should be useful to any designer of a fault tolerant storage system.
Title
An Analysis of Error Behavior in a Large Storage System
Published
Computer Science Division, University of California at Berkeley, Berkeley, California, February 1999
Full Collection Name
Electrical Engineering & Computer Sciences Technical Reports
Other Identifiers
CSD-99-1042
Type
Text
Extent
17 p
Archive
The Engineering Library
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