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[{"key": "dc.contributor.advisor", "value": "Luoma, Eetu", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Pekkala, Ville", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2015-08-21T20:03:56Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2015-08-21T20:03:56Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2015", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/46679", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Pilvitallennuspalvelut tuovat datan tallentamiseen ennenn\u00e4kem\u00e4tt\u00f6mi\u00e4 etuja ja niiden hy\u00f6dynt\u00e4minen on, sek\u00e4 yksitt\u00e4isill\u00e4 kuluttajilla, ett\u00e4 yrityksill\u00e4, yleistym\u00e4ss\u00e4. Teknologiassa on kuitenkin viel\u00e4 ongelmia ilman ratkaisua. Turvallisuus-, sek\u00e4 yksityisyysseikat ovat tunnetuimpia, ja niit\u00e4 on tutkittu laajalti. V\u00e4hemm\u00e4lle huomiolle on j\u00e4\u00e4nyt, kuinka vaikeaa on palveluntarjoajan vaihtaminen. Palveluntarjoajan vaihtaminen aiheuttaa aina kustannuksia asiakkaalle. Tilannetta, jossa vaihtokustannukset ovat niin suuret, ett\u00e4 ne est\u00e4v\u00e4t palveluntarjoajan vaihtamisen, kuvataan termill\u00e4 \"vendor lock-in\" (toimittajaloukku). T\u00e4m\u00e4n kandidaatintutkielman tavoitteena on kirjallisuuskatsauksen perusteella selvitt\u00e4\u00e4, mitk\u00e4 aiheuttavat vaihtokustannuksia pilvitallennuksessa, mit\u00e4 riskej\u00e4 toimittajaloukku aiheuttaa sek\u00e4 yksitt\u00e4isille asiakkaille, ett\u00e4 yrityksille, sek\u00e4 kuinka toimittajaloukkua voi v\u00e4ltt\u00e4\u00e4.\nSuurin osa vaihtokustannuksista tuli kirjallisuuskatsauksen perusteella datan siirt\u00e4misest\u00e4 uudelle palveluntarjoajalle. Eri\u00e4v\u00e4t standardit est\u00e4v\u00e4t tallennetun datan helpon siirt\u00e4misen. Vaihtaessa palveluntarjoajaa, pilveen tallennettu data t\u00e4ytyy ensiksi ladata vanhalta palveluntarjoajalta ja sen j\u00e4lkeen l\u00e4hett\u00e4\u00e4 uuteen. Big Datan aikakaudella t\u00e4m\u00e4 voi olla hyvin kallis ja aikaa viev\u00e4 operaatio. Muut kustannukset liittyiv\u00e4t uuden palvelun k\u00e4yt\u00f6n opettelemiseen.\nAsiakas on toimittajaloukkuun j\u00e4\u00e4dess\u00e4\u00e4n luonnollisesti pilven toimittajan armoilla. Hinnannousujen tai palvelutason muutosten siet\u00e4minen ovat yleens\u00e4 pienempi paha kalliiseen muutto-operaatioon verrattuna. T\u00e4m\u00e4n lis\u00e4ksi, jos data on keskitetty yhteen paikkaan, asiakkaalla ei ole p\u00e4\u00e4sy\u00e4 dataan toimittajan k\u00e4rsiess\u00e4 palvelukatkosta.\nToimittajaloukkua v\u00e4ltt\u00e4\u00e4kseen t\u00e4ytyy asiakkaan ottaa se huomioon jo pilvitallennuspalvelua valitessa. Yksi valintakriteereist\u00e4 pilvitallennuspalvelulle pit\u00e4isi olla pilvest\u00e4 poistumisen helppous. \nDatan hajauttaminen useampaan paikkaan on luonnollisesti my\u00f6s ratkaisu ongelmalle. Hajautetulle pilvitallennukselle on kehitetty useita menetelmi\u00e4. Ne hy\u00f6dynt\u00e4v\u00e4t RAID:n kaltaisia menetelmi\u00e4 jakamalla tiedoston osiin usealle pilvialustalle siten, ett\u00e4 vain osa tiedostosta riitt\u00e4\u00e4 sen uudelleenrakentamiseen.\nHuolimatta keinoista, joilla minimoida toimittajaloukun riskej\u00e4, toimittajaloukku horjuttaa pilvitallennuksen hy\u00f6dyllisyytt\u00e4 sek\u00e4 pysyy ongelmana, joka on syyt\u00e4 tiedostaa harkitessa datan tallentamisen ulkoistamista pilveen.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Cloud storage brings unprecedented benefits to data storage. This has been noted by both individual consumers as well as organizations as the utilization of cloud storage services is growing. However, the technology still has its' problems. Most research have received security and privacy problems. Another important detefrrent to the adoption of cloud storage, and one which has not received as much attention, is how hard it is to switch cloud storage provider. A situation, in which switching costs are so high that they block vendor switch, is called vendor lock-in. This bachelor's thesis means to investigate what are the causes for switching costs in cloud storage, what risks does vendor lock-in expose both individual consumer and organizations into and how one can avoid getting locked in.\nAccording to the literature review, biggest cause for switching cost comes from the laborious data migration process. Differing standards obstruct easy data migration. Instead, when switching service provider, the customer has to download data from the old cloud service provider and then upload it to the new cloud provider's servers. In the age of Big Data, this can be very expensive and timeconsuming operation. Costs also originate from having to learn to use the new service.\nLocked in customer is at the mercy of the cloud vendor. Enduring price hikes or changes in service level is usually a better alternative than undertaking the costly migration operation. Vendor lock-in also causes customer to be more vulnerable to service outages as he has all his important data centralized in one place.\nTo avoid vendor lock-in, customer has to be aware of the issue when choosing a service provider. One of the criterion when choosing a vendor needs to be how easy it is to get the data out of the cloud.\nDistributing the data to multiple locations has been identified as a solution to minimize vendor lock-in problem. Distributed cloud has multiple implementations. They utilize RAID-like technologies by splitting file over multiple different cloud storage providers' servers so that only a certain part of the file is needed for reconstruction.\nDespite the ways to minimize the risks, vendor lock-in still remains a problem that has to be acknowledged by customer looking to outsource data storage to the cloud and one that slows down the adoption of these technologies.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Ville Pekkala (vimapekk) on 2015-08-21 20:03:55.601824. Form: Kandidaatintutkielma -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/kandin-tutkielma-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2015-08-21T20:03:55Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201508212735.pdf: 414106 bytes, checksum: d605932504e173fdd581eb781fe5fe57 (MD5)\nlicense.html: 4782 bytes, checksum: 0cbc48a043717e9a56cc3be8c8979a73 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2015-08-21T20:03:56Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201508212735.pdf: 414106 bytes, checksum: d605932504e173fdd581eb781fe5fe57 (MD5)\nlicense.html: 4782 bytes, checksum: 0cbc48a043717e9a56cc3be8c8979a73 (MD5)\n Previous issue date: 2015", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "22", "language": "", "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "vendor lock-in", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "cloud storage", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "distributed cloud storage", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "switching costs", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "big data", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "toimittajaloukku", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "pilvitallennus", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Vendor lock-in problem in cloud storage", "language": "", "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "bachelor thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201508212735", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.dcmitype", "value": "Text", "language": "en", "element": "type", "qualifier": "dcmitype", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Kandidaatintutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Bachelor's thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Informaatioteknologian tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Information Technology", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Informaatioteknologia", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Information Technology", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Tietoj\u00e4rjestelm\u00e4tiede", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Information Systems Science", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": "2015-08-21T20:03:56Z", "language": null, "element": "date", "qualifier": "updated", "schema": "dc"}, {"key": "dc.type.coar", "value": "http://purl.org/coar/resource_type/c_7a1f", "language": null, "element": "type", "qualifier": "coar", "schema": "dc"}, {"key": "dc.rights.accesslevel", "value": "openAccess", "language": "fi", "element": "rights", "qualifier": "accesslevel", "schema": "dc"}, {"key": "dc.type.publication", "value": "bachelorThesis", "language": null, "element": "type", "qualifier": "publication", "schema": "dc"}, {"key": "dc.rights.url", "value": "https://rightsstatements.org/page/InC/1.0/", "language": null, "element": "rights", "qualifier": "url", "schema": "dc"}]
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