PERFORMANCE OF A 2-HEADED DISK SYSTEM WHEN SERVING DATABASE QUERIES UNDER THE SCAN POLICY

MANOLOPOULOS, Y; KOLLIAS, JG

dc.contributor.author	MANOLOPOULOS, Y	en
dc.contributor.author	KOLLIAS, JG	en
dc.date.accessioned	2014-03-01T01:07:37Z
dc.date.available	2014-03-01T01:07:37Z
dc.date.issued	1989	en
dc.identifier.issn	0362-5915	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10072
dc.subject	Database Query	en
dc.subject	Database System	en
dc.subject	Performance Evaluation	en
dc.subject.classification	Computer Science, Information Systems	en
dc.subject.classification	Computer Science, Software Engineering	en
dc.title	PERFORMANCE OF A 2-HEADED DISK SYSTEM WHEN SERVING DATABASE QUERIES UNDER THE SCAN POLICY	en
heal.type	journalArticle	en
heal.identifier.primary	10.1145/68012.68017	en
heal.identifier.secondary	http://dx.doi.org/10.1145/68012.68017	en
heal.language	English	en
heal.publicationDate	1989	en
heal.abstract	Disk drives with movable two-headed arms are now commercially available. The two heads are separated by a fixed number of cylinders. A major problem for optimizing disk head movement, when answering database requests, is the specification of the optimum number of cylinders separating the two heads. An earlier analytical study assumed a FCFS model and concluded that the optimum separation	en
heal.publisher	ASSOC COMPUTING MACHINERY	en
heal.journalName	ACM TRANSACTIONS ON DATABASE SYSTEMS	en
dc.identifier.doi	10.1145/68012.68017	en
dc.identifier.isi	ISI:A1989AU08900005	en
dc.identifier.volume	14	en
dc.identifier.issue	3	en
dc.identifier.spage	425	en
dc.identifier.epage	442	en