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1. (WO2007009910) VIRTUALISATION ENGINE AND METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR MANAGING THE STORAGE OF DATA
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/009910 International Application No.: PCT/EP2006/064085
Publication Date: 25.01.2007 International Filing Date: 11.07.2006
IPC:
G06F 3/06 (2006.01) ,G06F 12/08 (2006.01) ,H04L 29/06 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input 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
06
Digital input from, or digital output to, record carriers
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
12
Accessing, addressing or allocating within memory systems or architectures
02
Addressing or allocation; Relocation
08
in hierarchically structured memory systems, e.g. virtual memory systems
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29
Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02
Communication control; Communication processing
06
characterised by a protocol
Applicants:
INTERNATIONAL BUSINESS MACHINES CORPORATION [US/US]; New Orchard Road Armonk, New York 10504, US (AllExceptUS)
CARR, David, John [GB/GB]; GB (UsOnly)
WHYTE, Barry, Douglas [GB/GB]; GB (UsOnly)
Inventors:
CARR, David, John; GB
WHYTE, Barry, Douglas; GB
Agent:
WILLIAMS, Julian, David; IBM United Kingdom Limited Intellectual Property Law Hursley Park Winchester Hampshire SO21 2JN, GB
Priority Data:
0514529.715.07.2005GB
Title (EN) VIRTUALISATION ENGINE AND METHOD, SYSTEM, AND COMPUTER PROGRAM PRODUCT FOR MANAGING THE STORAGE OF DATA
(FR) MOTEUR DE VIRTUALISATION ET PROCEDE, SYSTEME ET PRODUIT-PROGRAMME INFORMATIQUE DE GESTION DU STOCKAGE DE DONNEES
Abstract:
(EN) A storage management method for use in a storage area network is provided. The storage area network comprises a plurality of host data processors coupled to a storage virtualisation engine, which is coupled to a plurality of physical storage media. Each physical storage media is assigned a tier level. The method comprises providing a storage management policy identifying threshold storage access rates associated with each tier level, mapping blocks of physical storage to corresponding blocks of a virtual disk, and storing metadata associated with a block identifying the tier level of the physical storage to which the block corresponds, mappings between the block and blocks of a virtual disk, and an access rate indicating the rate of access to the data. The access value is periodically compared to at least one threshold rate associated with its tier level. Depending on the result of the comparison, a storage block may then be marked for migration to a physical storage medium of another tier level.
(FR) L'invention concerne un procédé de gestion de stockage utilisé dans un réseau de stockage. Le réseau de stockage comprend une pluralité de processeurs de données hôtes couplés à un moteur de virtualisation de stockage couplé à une pluralité de supports de stockage physiques. Ledit procédé consiste à mettre en oeuvre une politique de gestion de stockage identifiant des vitesses d'accès au dispositif de stockage seuil associées à chaque niveau, à mettre en correspondance des blocs de supports de stockage physiques avec les blocs d'un disque virtuel, et à stocker les métadonnées associées à un bloc identifiant le niveau du support de stockage physique auquel correspond le bloc, les mises en correspondances entre le bloc et les blocs d'un disque virtuel, et une vitesse d'accès indiquant la vitesse d'accès aux données. La valeur d'accès est périodiquement comparée à au moins une vitesse seuil associée à son niveau. En fonction du résultat de la comparaison, un bloc de stockage peut alors être marqué pour sa migration vers un support de stockage physique d'un autre niveau.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
CN101223498