DocumentCode
3317337
Title
Logical vs. physical disk shadowing
Author
Graefe, Goetz ; Shapiro, Leonard D.
Author_Institution
Colorado Univ., Boulder, CO, USA
fYear
1991
fDate
3-5 Apr 1991
Firstpage
91
Abstract
Summary form only given. Bitton and Gray (1988) have defined disk shadowing as a technique for maintaining a set of two or more identical disk images on separate disk drives. Its primary purpose is to enhance reliability and availability of secondary storage by providing multiple paths to redundant data. The current paper demonstrates how disk shadowing can be further improved if not physical page images but logical data sets are mirrored with different clustering strategies on different disks
Keywords
database management systems; reliability; availability; clustering strategies; disk drives; identical disk images; logical data sets; logical disk shadowing; multiple paths; physical disk shadowing; physical page images; redundant data; reliability; secondary storage; Arm; Availability; Database systems; Disk drives; Image databases; Indexes; Maintenance; Shadow mapping; Sorting; Telephony;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Computing, 1991., [Proceedings of the 1991] Symposium on
Conference_Location
Kansas City, MO
Print_ISBN
0-8186-2136-2
Type
conf
DOI
10.1109/SOAC.1991.143853
Filename
143853
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