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System software interfaces for space-optimized block devices
US9052825B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9052825-B2 |
| Application number | US-201113181153-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 12, 2011 |
| Priority date | Aug 30, 2010 |
| Publication date | Jun 9, 2015 |
| Grant date | Jun 9, 2015 |
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Abstract
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Interfaces to storage devices that employ storage space optimization technologies, such as thin provisioning, are configured to enable the benefits gained from such technologies to be sustained. Such an interface may be provided in a hypervisor of a virtualized computer system to enable the hypervisor to discover features of a logical unit number (LUN), such as whether or not the LUN is thinly provisioned, and also in a virtual machine (VM) of the virtualized computer system to enable the VM to discover features of a virtual disk, such as whether or not the virtual disk is thinly provisioned. The discovery of these features enables the hypervisor or the VM to instruct the underlying storage device to carry out certain operations such as an operation to deallocate blocks previously allocated to a logical block device, so that the storage device can continue to benefit from storage space optimization technologies implemented therein.
First claim
Opening claim text (preview).
We claim: 1. A computer system comprising: a plurality of hosts, each having virtualization software to support execution of one or more virtual machines, the hosts including first and second hosts each having virtualization software of a first type that supports thinly provisioned virtual disks and an unmap command, wherein the unmap command is a command for deallocating blocks previously allocated to a thinly provisioned virtual disk, and a third host having virtualization softw…
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Physics · mapped topic
Physics · mapped topic
- G06F3/0608Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9052825B2 cover?
- Interfaces to storage devices that employ storage space optimization technologies, such as thin provisioning, are configured to enable the benefits gained from such technologies to be sustained. Such an interface may be provided in a hypervisor of a virtualized computer system to enable the hypervisor to discover features of a logical unit number (LUN), such as whether or not the LUN is thinly …
- Who is the assignee on this patent?
- Vaghani Satyam B, Aswathanarayana Tejasvi, Vmware Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F3/0608. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 09 2015 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).