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1. WO2012058169 - METHOD AND SYSTEM FOR NON-DISRUPTIVE MIGRATION

Publication Number WO/2012/058169
Publication Date 03.05.2012
International Application No. PCT/US2011/057540
International Filing Date 24.10.2011
IPC
G06F 7/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
7Methods or arrangements for processing data by operating upon the order or content of the data handled
CPC
G06F 16/119
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
11File system administration, e.g. details of archiving or snapshots
119Details of migration of file systems
G06F 3/0647
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
06Digital input from or digital output to record carriers ; , e.g. RAID, emulated record carriers, networked record carriers
0601Dedicated interfaces to storage systems
0628making use of a particular technique
0646Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
0647Migration mechanisms
Applicants
  • NETAPP, INC. [US]/[US] (AllExceptUS)
  • CHANG, Chung-Yen (AllExceptUS)
  • SOMAVARAPU, Nagender [IN]/[US] (AllExceptUS)
  • FREDRICKSEN, John [US]/[US] (UsOnly)
Inventors
  • FREDRICKSEN, John
Agents
  • SINGH, Tejinder
Priority Data
12/915,86729.10.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND SYSTEM FOR NON-DISRUPTIVE MIGRATION
(FR) PROCÉDÉ ET SYSTÈME PERMETTANT UNE MIGRATION SANS INTERRUPTION
Abstract
(EN)
Method and system for migrating a virtual storage system from a source storage system having access to a source storage device to a destination storage system having access to a destination storage device is provided. A processor executable management application estimates a likelihood of success for a migration operation before the migration operation enters a cut-over duration during which client access to the source storage system and the destination storage system is restricted. The migration operation enters the cut-over duration if there is high likelihood of success for completing the migration during the cut-over duration or aborted, if there is a low likelihood of success for completing the migration during the cut-over duration.
(FR)
La présente invention concerne un procédé et un système permettant une migration d'un système de stockage virtuel d'un système de stockage source, ayant accès à un dispositif de stockage source, à un système de stockage destination ayant accès à un dispositif de stockage destination. Une application de gestion exécutable par un processeur estime une vraisemblance de succès pour une opération de migration avant que l'opération de migration s'engage dans une durée de transfert durant laquelle l'accès du client au système de stockage source et au système de stockage destination est restreint. L'opération de migration s'engage dans la durée de transfert si la vraisemblance de succès pour achever la migration durant la durée de transfert est grande ou ladite opération est annulée si la vraisemblance de succès pour achever la migration durant la durée de transfert est faible.
Also published as
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