Accumulating i/o operations into a single combined i/o operation for implementation by an underlying storage device layer
US-2024143234-A1 · May 2, 2024 · US
Dense tree volume metadata organization
US9268502B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9268502-B2 |
| Application number | US-201314027994-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 16, 2013 |
| Priority date | Sep 16, 2013 |
| Publication date | Feb 23, 2016 |
| Grant date | Feb 23, 2016 |
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Abstract
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In one embodiment, a node coupled to one or more storage devices executes a storage input/output (I/O) stack having a volume layer. The volume layer manages volume metadata embodied as mappings from offsets of a logical unit (LUN) to extent keys associated with storage locations for extents on the one or more storage devices. Volume metadata is maintained as a dense tree metadata structure representing successive points in time. The dense tree metadata structure has multiple levels, wherein a top level of the dense tree metadata structure represents newer volume metadata changes and descending levels of the dense tree metadata structure represent older volume metadata changes. The node accesses a latest version of changes to the volume metadata by searching from the top level to the descending levels in the dense tree metadata structure.
First claim
Opening claim text (preview).
What is claimed is: 1. A system comprising: a central processing unit (CPU) of a node coupled to one or more storage devices; and a memory coupled to the CPU and configured to store a storage input/output (I/O) stack having a volume layer executable by the CPU, the volume layer configured to manage volume metadata embodied as mappings from offsets of a logical unit (LUN) to extent keys associated with storage locations for extents on the one or more storage devices, the volume l…
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Physics · mapped topic
- G06F3/0689Primary
Physics · mapped topic
- G06F16/2246Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9268502B2 cover?
- In one embodiment, a node coupled to one or more storage devices executes a storage input/output (I/O) stack having a volume layer. The volume layer manages volume metadata embodied as mappings from offsets of a logical unit (LUN) to extent keys associated with storage locations for extents on the one or more storage devices. Volume metadata is maintained as a dense tree metadata structure repr…
- Who is the assignee on this patent?
- Netapp Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0689. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).