de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch

Hilfe Wegweiser Datenschutzhinweis Impressum Kontakt

# Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Konferenzbeitrag

#### Asynchronous Scheduling of Redundant Disk Arrays

##### MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons45344

Sanders,  Peter
Algorithms and Complexity, MPI for Informatics, Max Planck Society;

##### Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
##### Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
##### Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
##### Zitation

Sanders, P. (2000). Asynchronous Scheduling of Redundant Disk Arrays. In S.-H. Teng (), Proceedings of the 12th Annual ACM Symposium on Parallel Algorithms and Architecture (SPAA-00) (pp. 89-98). New York, USA: ACM Press.

Random redundant allocation of data to parallel disk arrays can be exploited to achieve low access delays. New algorithms are proposed which improve the previously known shortest queue algorithm by systematically exploiting that scheduling decisions can be deferred until a block access is actually started on a disk. These algorithms are also generalized for coding schemes with low redundancy. Using extensive experiments, practically important quantities are measured which have so far eluded an analytical treatment: The delay distribution when a stream of requests approaches the limit of the sytem capacity, the system efficiency for parallel disk applications with bounded prefetching buffers, and the combination of both for mixed traffic. A further step towards practice is taken by outlining the system design for $\alpha$: automatically load-balanced parallel hard-disk array.