The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2024
Filed:
Dec. 12, 2022
Dell Products, L.p., Hopkinton, MA (US);
John Creed, Innishannon, IE;
Dell Products, L.P., Hopkinton, MA (US);
Abstract
A data verification process is implemented before performing role reversal on a remote data replication facility to identify data mismatch errors prior to failover or failback on the remote data replication facility. In situations where the role reversal is planned sufficiently far in advance, a full data scan is implemented by comparing the Data Integrity Field (DIF) information of each track of data on the primary storage array with the DIF information of each corresponding track of data on the backup storage array. In situations where the role reversal is more imminent, a quick scan is implemented by comparing metadata signatures for each track of data on the primary storage array with the metadata signatures of each corresponding track of data on the backup storage array. Once any data mismatch errors are identified, the data on the backup storage array can be corrected prior to role reversal.