# US 11,445,022 B2 · System and method for service level agreement based data verification > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,022 B2 - Document ID: US11445022B2 - Status: Granted - Kind: B2 - Application number: 16/718,438 - Filed: 2019-12-18 - Published: 2020-04-23 - Granted: 2022-09-13 - Earliest claimed: 2017-07-06 - Assignees: Acronis International GmbH - Applicants: Acronis International GmbH - Inventors: Alexander Tormasov; Stanislav S. Protasov; Serguei M. Beloussov - Web page: https://patentgrep.com/patent/US11445022B2 ## CPC - H04L 67/1097: for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS] - G06F 11/0727: {in a storage system, e.g. in a DASD or network based storage system (drivers for digital recording or reproducing units G06F3/06; circuits for error detection or correction within digital recording or reproducing units G11B20/18; for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS], H04L67/1097)} - H04L 41/5019: Ensuring fulfilment of SLA - H04L 63/123: {received data contents, e.g. message integrity} - G06F 21/64: Protecting data integrity, e.g. using checksums, certificates or signatures - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A system and method is provided for service level agreement (SLA) based data storage and verification. According to one exemplary aspect, a method includes receiving, from a client device, a request to perform data verification of data relating to a file stored on a remote storage computer; accessing, by a processor, at least one SLA to determine a fault tolerance for the file stored on the remote storage computer; sending, by the processor to the remote storage computer, a request to store k derivatives of the file in the remote storage computer; and transmitting, to the client device, an indication of a location of the k derivatives of the file in the remote storage computer. ## Claims ### Claim 1 A method for service level agreement (SLA) based data verification, the method comprising: receiving, from a client device, a request to perform data verification of data relating to a file stored on a remote storage computer; accessing, by a processor, at least one SLA to determine a fault tolerance for the file stored on the remote storage computer; sending, by the processor to the remote storage computer, a request to store k derivatives of the file in the remote storage computer; and transmitting, to the client device, an indication of a location of the k derivatives of the file in the remote storage computer. ### Claim 2 (depends on 1) The method of claim 1, wherein the request comprises a level of fault tolerance, further comprising: in response to determining that the level of fault tolerance is equal to a minimum level of fault tolerance, sending, by the processor to the remote storage computer, the request to store k derivatives of the file in the remote storage computer. ### Claim 3 (depends on 2) The method of claim 2, further comprising: in response to determining that the level of fault tolerance is not equal to the minimum level of fault tolerance, determining whether optimization of place of the file and the k derivatives has been requested; and in response to determining that the optimization has been requested, specifying optimum placement of derivatives in servers of the remote storage computer. ### Claim 4 (depends on 3) The method according to claim 3, wherein the specifying comprises: sending, by the processor to the remote storage computer, a request to store at least k+m derivatives of the file in at least k+m servers of the remote storage computer; and transmitting, to the client device, respective indications of respective locations in the at least k+m servers of the at least k+m derivatives. ### Claim 5 (depends on 3) The method of claim 3, further comprising: in response to determining that the optimization has not been requested: sending, by the processor to the remote storage computer, a request to store k+m derivatives of the file in k+m servers of the remote storage computer; and transmitting, to the client device, respective indications of respective locations in the k+m servers of the k+m derivatives. ### Claim 6 (depends on 1) The method of claim 1, further comprising generating an on-demand request as the request to perform the data verification of the data relating to the at least one file stored on the at least one remote storage computer. ### Claim 7 (depends on 1) The method of claim 1, wherein the request to perform data verification is for a plurality of files and wherein a respective k derivatives are sent for each respective file of the plurality of files. ### Claim 8 (depends on 1) The method of claim 1, wherein a selection for the fault tolerance is not in the request for data verification, further comprising transmitting, to the client device, an indication of a location of the file in the remote storage computer. ### Claim 9 A system for service level agreement (SLA) based data verification, the system comprising: a processor configured to: receive, from a client device, a request to perform data verification of data relating to a file stored on a remote storage computer; access at least one SLA to determine a fault tolerance for the file stored on the remote storage computer; send, to the remote storage computer, a request to store k derivatives of the file in the remote storage computer; and transmit, to the client device, an indication of a location of the k derivatives of the file in the remote storage computer. ### Claim 10 (depends on 9) The system of claim 9, wherein the request comprises a level of fault tolerance, wherein the processor is further configured to: in response to determining that the level of fault tolerance is equal to a minimum level of fault tolerance, send, to the remote storage computer, the request to store k derivatives of the file in the remote storage computer. ### Claim 11 (depends on 10) The system of claim 10, wherein the processor is further configured to: in response to determining that the level of fault tolerance is not equal to the minimum level of fault tolerance, determine whether optimization of place of the file and the k derivatives has been requested; and in response to determining that the optimization has been requested, specify optimum placement of derivatives in servers of the remote storage computer. ### Claim 12 (depends on 11) The system according to claim 11, wherein the processor is further configured to specify by: sending, by the processor to the remote storage computer, a request to store at least k+m derivatives of the file in at least k+m servers of the remote storage computer; and transmitting, to the client device, respective indications of respective locations in the at least k+m servers of the at least k+m derivatives. ### Claim 13 (depends on 11) The system of claim 11, wherein the processor is further configured to: in response to determining that the optimization has not been requested: send, to the remote storage computer, a request to store k+m derivatives of the file in k+m servers of the remote storage computer; and transmit, to the client device, respective indications of respective locations in the k+m servers of the k+m derivatives. ### Claim 14 (depends on 9) The system of claim 9, wherein the processor is further configured to generate an on-demand request as the request to perform the data verification of the data relating to the at least one file stored on the at least one remote storage computer. ### Claim 15 (depends on 9) The system of claim 9, wherein the request to perform data verification is for a plurality of files and wherein a respective k derivatives are sent for each respective file of the plurality of files. ### Claim 16 (depends on 9) The system of claim 9, wherein a selection for the fault tolerance is not in the request for data verification, and wherein the processor is further configured to transmit, to the client device, an indication of a location of the file in the remote storage computer. ### Claim 17 A non-transitory computer readable medium storing thereon computer executable instructions for service level agreement (SLA) based data verification, including instructions for: receiving, from a client device, a request to perform data verification of data relating to a file stored on a remote storage computer; accessing, by a processor, at least one SLA to determine a fault tolerance for the file stored on the remote storage computer; sending, by the processor to the remote storage computer, a request to store k derivatives of the file in the remote storage computer; and transmitting, to the client device, an indication of a location of the k derivatives of the file in the remote storage computer. ### Claim 18 (depends on 17) The non-transitory computer readable medium of claim 17, wherein the request comprises a level of fault tolerance, further including instructions for: in response to determining that the level of fault tolerance is equal to a minimum level of fault tolerance, sending, by the processor to the remote storage computer, the request to store k derivatives of the file in the remote storage computer. ### Claim 19 (depends on 18) The non-transitory computer readable medium of claim 18, further including instructions for: in response to determining that the level of fault tolerance is not equal to the minimum level of fault tolerance, determining whether optimization of place of the file and the k derivatives has been requested; and in response to determining that the optimization has been requested, specifying optimum placement of derivatives in servers of the remote storage computer. ### Claim 20 (depends on 19) The non-transitory computer readable medium according to claim 19, further including instructions for: sending, by the processor to the remote storage computer, a request to store at least k+m derivatives of the file in at least k+m servers of the remote storage computer; and transmitting, to the client device, respective indications of respective locations in the at least k+m servers of the at least k+m derivatives.