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An analysis of file migration in a unix supercomputing environment
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Katz, Randy H. Miller, Ethan L. |
| Copyright Year | 1992 |
| Description | The super computer center at the National Center for Atmospheric Research (NCAR) migrates large numbers of files to and from its mass storage system (MSS) because there is insufficient space to store them on the Cray supercomputer's local disks. This paper presents an analysis of file migration data collected over two years. The analysis shows that requests to the MSS are periodic, with one day and one week periods. Read requests to the MSS account for the majority of the periodicity; as write requests are relatively constant over the course of a week. Additionally, reads show a far greater fluctuation than writes over a day and week since reads are driven by human users while writes are machine-driven. |
| File Size | 1170702 |
| Page Count | 14 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930015942 |
| Archival Resource Key | ark:/13960/t9673cc05 |
| Language | English |
| Publisher Date | 1992-11-01 |
| Access Restriction | Open |
| Subject Keyword | Computer Programming And Software File Maintenance Computers Data Management Response Time Computers Data Acquisition Migration Unix Operating System Periodic Variations Computer Storage Devices Cray Computers Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
