US7054960B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for identifying block-level write operations to be transferred to a secondary site during replication
Assignee: Cohesity Inc
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Filing: 2003-11-18
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Granted: 2006-05-30
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Expires: 2023-11-18
Abstract
Abstract A method involves generating a block-level write operation, which causes a value to be written to a primary volume, and generating information indicative of whether any of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume. The information can indicate that all, part, or none of the block-level write operation should be transferred to the secondary site. If the information indicates that less than all of the block-level write operation should be transferred to a secondary site, the information can also indicate that logical information associated with the block-level write operation should be transferred to the secondary site instead of transferring the value being written by the block-level write operation.
Inventors
- 👤 Angshuman Bezbaruah
- 👤 Milind Borate
- 👤 Basant Rajan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:46
CPC Classifications
G; G06; G06F; G06F11/00; G06F11/07; G06F11/16; G06F11/20; G06F11/2053; G06F11/2056; G06F11/2071; G06F11/14; G06F11/1446; G06F11/1448; G06F11/1451
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
109 words
A method, comprising: generating a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume; identifying whether the region of the primary volume stores a first type of a plurality of types of file system metadata; and generating information indicative of whether any of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 2
Independent Claim
109 words
A method, comprising: generating a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume; identifying whether the region of the primary volume stores a first type of a plurality of types of file system metadata; and generating information indicative of whether any of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 3
Dependent Claim
20 words
The method of claim 1 , wherein the block-level write operation and the information are generated by a file system.
Claim 4
Dependent Claim
23 words
The method of claim 1 , wherein the information indicates that the block-level write operation should not be transferred to the secondary site.
Claim 5
Dependent Claim
14 words
The method of claim 3 , wherein the block-level write operation modifies correctable metadata.
Claim 6
Dependent Claim
14 words
The method of claim 3 , wherein the block-level write operation modifies non-essential metadata.
Claim 7
Dependent Claim
26 words
The method of claim 1 , wherein the information indicates that less than all of the block-level write operation should be transferred to the secondary site.
Claim 8
Dependent Claim
51 words
The method of claim 6 , wherein the information indicates that logical information associated with the block-level write operation should be transferred to the secondary site instead of transferring the value, and the logical information identifies a source address, from which to read the value, and a length of the value.
Claim 9
Dependent Claim
36 words
The method of claim 7 , further comprising: reading the value from the source address on a secondary volume comprised in the secondary site; and writing the value to the destination address on the secondary volume.
Claim 10
Dependent Claim
58 words
The method of claim 6 , wherein the block-level write operation is being performed to modify fewer than all units of metadata in a group of metadata addressed by the block-level write operation, and the information indicates that new values of only certain units of metadata in the group of metadata should be transferred to the secondary site.
Claim 11
Dependent Claim
38 words
The method of claim 9 , further comprising: transferring less than all of the block-level write operation to the secondary site; and updating only the certain units of metadata on a secondary volume comprised in the secondary site.
Claim 12
Dependent Claim
35 words
The method of claim 1 , further comprising receiving the block-level write operation and the information; and transferring less than all of the block-level write operation to the secondary site in response to the information.
Claim 13
Independent Claim
129 words
A system comprising: a processor; and a memory coupled to the processor, wherein the memory stores program instructions executable by the processor to: generate a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, identify whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and generate information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 14
Independent Claim
129 words
A system comprising: a processor; and a memory coupled to the processor, wherein the memory stores program instructions executable by the processor to: generate a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, identify whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and generate information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 15
Dependent Claim
24 words
The system of claim 12 , wherein the information indicates that none of the block-level write operation should be transferred to the secondary site.
Claim 16
Dependent Claim
24 words
The system of claim 12 , wherein the information indicates that less than all of the value should be transferred to the secondary site.
Claim 17
Dependent Claim
115 words
A computer readable medium comprising program instructions executable to: generate a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, identify whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and generate information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 18
Dependent Claim
115 words
A computer readable medium comprising program instructions executable to: generate a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, identify whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and generate information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 19
Dependent Claim
26 words
The computer readable medium of claim 15 , wherein the information indicates that none of the block-level write operation should be transferred to the secondary site.
Claim 20
Dependent Claim
26 words
The computer readable medium of claim 15 , wherein the information indicates that less than all of the value should be transferred to the secondary site.
Claim 21
Independent Claim
115 words
A system comprising: means for generating a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, means for identifying whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and means for generating information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 22
Independent Claim
115 words
A system comprising: means for generating a block-level write operation, wherein the block-level write operation causes a value to be written to a region of a primary volume, means for identifying whether the region of the primary volume stores a first type of a plurality of types of file system metadata, and means for generating information indicative of whether all of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume, wherein if the region of the primary volume stores the first type of file system metadata, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 23
Dependent Claim
69 words
The method of claim 1 , further comprising: identifying whether the block-level write operation is being performed to move the value from a first region of the primary volume to a second region of the primary volume; wherein if the block-level write operation is being performed to move the value, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
Claim 24
Dependent Claim
57 words
The method of claim 1 , further comprising: identifying whether the block-level write operation modifies less than all of the region of the primary volume; wherein if the block-level write operation modifies less than all of the region, the information identifies that less than all of the block-level write operation should be transferred to the secondary site.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-05-29 | 2009-11-28 | 2010-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-05-29 | 2013-11-28 | 2014-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-05-29 | 2017-11-28 | 2018-05-30 | $7700.00 | Window Closed / Lapsed |