System and method for extended media retention
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-017/00
G06F-007/00
출원번호
US-0549518
(2009-08-28)
등록번호
US-8209293
(2012-06-26)
발명자
/ 주소
Gokhale, Parag
Lu, Yanhui
출원인 / 주소
CommVault Systems, Inc.
대리인 / 주소
Perkins Coie LLP
인용정보
피인용 횟수 :
15인용 특허 :
243
초록▼
The present invention provides systems and methods for extending media retention. Methods are provided in which a set of aging preferences are obtained. Data elements of a data set stored on storage media are evaluated against the aging preferences to determine whether each of the data elements sati
The present invention provides systems and methods for extending media retention. Methods are provided in which a set of aging preferences are obtained. Data elements of a data set stored on storage media are evaluated against the aging preferences to determine whether each of the data elements satisfy the aging preferences. Each of the data elements that is determined to satisfy the aging preferences is aged. Aging can include freeing a portion of storage media, previously used to store a data element, for other storage usage.
대표청구항▼
1. A computer-implemented method for storing and retaining data stored on at least one removable storage media device, wherein each removable storage media device stores a data set including a plurality of data elements, the method comprising: creating at least one full backup of data elements in th
1. A computer-implemented method for storing and retaining data stored on at least one removable storage media device, wherein each removable storage media device stores a data set including a plurality of data elements, the method comprising: creating at least one full backup of data elements in the data set;creating a plurality of incremental backups of the data elements in the data set, wherein the incremental backups comprise data elements that have been modified since the creation of the full backup;storing the created full backup and the created incremental backups to a removable storage media device; andmanaging retention of the data stored on the removable storage media device, wherein the managing includes, for each incremental backup and full backup stored on the removable storage media device: obtaining an aging preference, wherein the aging preference defines separate periods of retention for the incremental backup and the full backup,retrieving index data indicating a respective date of creation of the incremental backup or the full backup;comparing the retrieved index data with the obtained aging preference;determining that the incremental backup or the full backup exceeds the period of retention based on the comparison; andallocating the removable storage media device to a scratch pool after all of the incremental and full backups exceed the respective period of retention, wherein the scratch pool includes a set of removable storage media devices to be overwritten. 2. The method of claim 1, further comprising freeing a portion of storage media, previously used to store the data elements, for other storage usage. 3. The method of claim 1, further comprising retrieving and consulting a storage policy that specifies storage patterns and aging policies for back up data stored in primary copies and other copies. 4. The method of claim 1, further comprising deleting pointers or index references in the index data. 5. The method of claim 1, further comprising: deleting the data elements from a portion of the storage media. 6. The method of claim 1 wherein the managing comprises managing retention of individual blocks of data. 7. The method of claim 1, wherein obtaining an aging preference comprises obtaining an aging preference from a storage policy. 8. The method of claim 1, wherein the data elements are data blocks. 9. A system for storing and retaining data stored on at least one removable storage media device, wherein each removable storage media device comprises a data set including a plurality of data elements, the system comprising: a processor;memory;a backup component, wherein the backup component is configured to create at least one full backup of data elements in the data set and to create a plurality of incremental backups of the data elements in the data set, wherein the incremental backups comprise data elements that have been modified after creation of the full backup;a storage component, wherein the storage component is configured to store the created at least one full backup and the created incremental backups to removable storage media devices;a management component, wherein the management component is configured to manage retention of the data stored on the removable storage media device, wherein the managing includes, for each incremental backup and full backup stored on the removable storage media device: obtaining an aging preference, wherein the aging preference defines separate periods of retention for the incremental backup and the full backup;retrieving index data indicating the date of creation of the incremental backup or the full backup;comparing the retrieved index data with the obtained aging preference;determining that the incremental backup or the full backup exceeds the period of retention based on the comparison; andallocating the removable storage media device to a scratch pool after the incremental backups and the at least one full backup exceed respective periods of retention, and wherein the scratch pool includes a set of removable storage media devices to be overwritten. 10. The system of claim 9 wherein the management component is further configured to free a portion of storage media, previously used to store the data elements, for other storage usage. 11. The system of claim 9 wherein the management component is further configured to retrieve and consult a storage policy that specifies storage patterns and aging policies for back up data stored in primary copies and other copies. 12. The system of claim 9 wherein the management component is further configured to delete pointers or index references in the index data. 13. The system of claim 9 wherein the management component is further configured to delete the data elements from a portion of the storage media. 14. The system of claim 9 wherein the management component is further configured to manage retention of individual blocks of data. 15. The system of claim 9, wherein obtaining an aging preference comprises obtaining an aging preference from a storage policy. 16. The system of claim 9, wherein the data elements are data blocks. 17. A non-transitory computer-readable storage medium storing computer implementable instructions to cause a data storage system to perform a method of storing and retaining data stored on at least one removable storage media device, wherein each removable storage media device contains a data set including a plurality of data elements, the method comprising: creating at least one full backup of data elements in the data set;creating a plurality of incremental backups of the data elements in the data set, wherein the incremental backups comprise data elements that have been modified since the creation of the full backup;storing the created full backup and the created incremental backups to a removable storage media device; andmanaging retention of the data stored on the removable storage media device, wherein the managing includes, for each incremental backup and full backup stored on the removable storage media device: obtaining an aging preference, wherein the aging preference defines separate periods of retention for the incremental backup and the full backup,retrieving index data indicating the date of creation of the incremental backup or the full backup;comparing the retrieved index data with the obtained aging preference;determining that the incremental backup or the full backup exceeds the period of retention based on the comparison; andallocating the removable storage media device to a scratch pool after the incremental and full backups exceed a respective period of retention, wherein the scratch pool includes a set of removable storage media devices to be overwritten. 18. The computer-readable medium of claim 17, further comprising freeing a portion of storage media, previously used to store the data elements, for other storage usage. 19. The computer-readable medium of claim 17, further comprising retrieving and consulting a storage policy that specifies storage patterns and aging policies for back up data stored in primary copies and other copies. 20. The computer-readable medium of claim 17, further comprising deleting pointers or index references in the index data.
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