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1. 发明申请

US20220083413A1 DETECTING AND RECOVERING FROM FATAL STORAGE ERRORS 有权
公开(公告)号：US20220083413A1
公开(公告)日：2022-03-17
申请号：US17532651
申请日：2021-11-22
申请人： Microsoft Technology Licensing, LLC
发明人： Ayberk OZTURK , Scott Chao-Chueh LEE , Brennan Alexander WATT , Vishal JOSE MANNANAL
IPC分类号： G06F11/07 , G06F11/14
摘要： The present disclosure relates to systems, methods, and computer readable media for identifying and responding to a panic condition on a storage system on a computing node. For example, systems disclosed herein may include establishing recovery instructions between a host system and a storage system in responding to a future instance of a panic condition. The storage system may provide an indication of a self-detected panic condition in a variety of ways. In response to identifying the panic condition, the host system may perform one or more recovery actions in accordance with recovery instructions accessible to the host system. This may include performing resets of specific components and reinitializing communication between the host system and storage system in less invasive ways than slower and more expensive conventional approaches for responding to panic conditions on computing nodes.

2. 发明申请

US20190354482A1 TIME-BASED MECHANISM SUPPORTING FLUSH OPERATION 审中-公开
公开(公告)号：US20190354482A1
公开(公告)日：2019-11-21
申请号：US15985156
申请日：2018-05-21
申请人： Microsoft Technology Licensing, LLC
发明人： Scott Chao-Chueh LEE
IPC分类号： G06F12/0804 , G06F12/0891 , G06F3/06
摘要： The techniques disclosed herein improve performance of storage systems by providing a time-based mechanism for supporting a flush operation. In one embodiment, a flush completion time stamp is accessed that is indicative of a most recent time of completion of a cache flush by a cache flush function. The flush completion time stamp is compared with a time stamp associated with a cache flush request. Based on the comparing, an indication is generated that the requested cache flush is complete when the flush completion time stamp is more recent than the time stamp associated with the cache flush request.

3. 发明申请

US20230089663A1 MAINTENANCE MODE FOR STORAGE NODES 有权
公开(公告)号：US20230089663A1
公开(公告)日：2023-03-23
申请号：US17800517
申请日：2021-03-15
申请人： Microsoft Technology Licensing, LLC
发明人： Vinod R. SHANKAR , Scott Chao-Chueh LEE , Bryan Stephen MATTHEW
IPC分类号： G06F3/06
摘要： A reduced throughput maintenance mode for adaptively managing input/output (I/O) operations within a resilient group of storage nodes. A first storage node in a resilient group of storage nodes is classified as operating in a normal throughput mode, and a second storage node in the resilient group is classified as operating in a reduced throughput mode. While the second node is classified as operating in the reduced throughput mode, read and write I/O operations are queued for the resilient group. The read I/O operation is prioritized for assignment to the first node, so as to reduce I/O load on the second node while it operates in the reduced throughput mode. The write I/O operation is queued to the second node, so as to maintain synchronization of the second node with the resilient group while it operates in the reduced throughput mode.

4. 发明申请

US20200257581A1 FAULT PREDICTION AND DETECTION USING TIME-BASED DISTRIBUTED DATA 审中-公开
公开(公告)号：US20200257581A1
公开(公告)日：2020-08-13
申请号：US16416107
申请日：2019-05-17
申请人： Microsoft Technology Licensing, LLC
发明人： Cosmos DARWIN , Bryan S. MATTHEW , Donald MACGREGOR , Scott Chao-Chueh LEE
IPC分类号： G06F11/07
摘要： Performance data is collected for input/output operations executed at a storage device of a plurality of storage devices of a software-defined storage network. Based on the collected performance data, a time-based I/O performance profile for the storage device is determined. A characteristic time-based I/O performance profile is determined for a representative group of storage devices having common characteristics with the storage device and based on previously collected performance data for devices of the representative group. It is determined that the difference between the time-based I/O performance profile for the storage device and the characteristic time-based I/O performance profile exceeds a predetermined deviance threshold that is indicative of a probable failure of the storage device. An indication is generated that the storage device exceeded the predetermined deviance threshold.

5. 发明申请

US20180321881A1 BLOCK STORAGE USING A HYBRID MEMORY DEVICE 审中-公开
公开(公告)号：US20180321881A1
公开(公告)日：2018-11-08
申请号：US16040427
申请日：2018-07-19
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Scott Chao-Chueh LEE , Robin A. ALEXANDER , Lee E. PREWITT , Chiuchin CHEN , Vladimir SADOVSKY
IPC分类号： G06F3/06
CPC分类号： G06F3/0659 , G06F3/06 , G06F3/0604 , G06F3/0605 , G06F3/0646 , G06F3/068 , G06F3/0685
摘要： Techniques for block storage using a hybrid memory device are described. In at least some embodiments, a hybrid memory device includes a volatile memory portion, such as dynamic random access memory (DRAM). The hybrid memory device further includes non-volatile memory portion, such as flash memory. In at least some embodiments, the hybrid memory device can be embodied as a non-volatile dual in-line memory module, or NVDIMM. Techniques discussed herein employ various functionalities to enable the hybrid memory device to be exposed to various entities as an available block storage device.

6. 发明申请

US20210149757A1 DETECTING AND RECOVERING FROM FATAL STORAGE ERRORS 有权
公开(公告)号：US20210149757A1
公开(公告)日：2021-05-20
申请号：US16687218
申请日：2019-11-18
申请人： Microsoft Technology Licensing, LLC
发明人： Ayberk OZTURK , Scott Chao-Chueh LEE , Brennan Alexander WATT , Vishal JOSE MANNANAL
IPC分类号： G06F11/07 , G06F11/14 , G06F11/16 , G06F11/30
摘要： The present disclosure relates to systems, methods, and computer readable media for identifying and responding to a panic condition on a storage system on a computing node. For example, systems disclosed herein may include establishing recovery instructions between a host system and a storage system in responding to a future instance of a panic condition. The storage system may provide an indication of a self-detected panic condition in a variety of ways. In response to identifying the panic condition, the host system may perform one or more recovery actions in accordance with recovery instructions accessible to the host system. This may include performing resets of specific components and reinitializing communication between the host system and storage system in less invasive ways than slower and more expensive conventional approaches for responding to panic conditions on computing nodes.

7. 发明申请

US20200371936A1 RUNTIME ALLOCATION AND UTILIZATION OF PERSISTENT MEMORY AS VOLATILE MEMORY 审中-公开
公开(公告)号：US20200371936A1
公开(公告)日：2020-11-26
申请号：US16422946
申请日：2019-05-24
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Neal Robert CHRISTIANSEN , Scott Chao-Chueh LEE
IPC分类号： G06F12/0842 , G06F12/02 , G06F9/50 , G06F12/0813 , G06F9/455
摘要： The described technologies enable a computing device to allocate at least a portion of its persistent memory as volatile memory during runtime. At least some implementations create a file in the persistent memory of the computing device. The file is created in the persistent memory of the computing device during runtime of a virtual machine (VM) hosted by the computing device. The file may be allocated to the VM. The file allocated to the VM may be used as volatile memory. For example, the VM may use the file to store temporary data (e.g., volatile data). In some implementations, the temporary data is associated with an application executing in theVM.

8. 发明申请

US20200326970A1 VIRTUALIZED APPEND-ONLY STORAGE DEVICE 审中-公开
公开(公告)号：US20200326970A1
公开(公告)日：2020-10-15
申请号：US16384769
申请日：2019-04-15
申请人： Microsoft Technology Licensing, LLC
发明人： Bryan Stephen MATTHEW , Scott Chao-Chueh LEE
IPC分类号： G06F9/455 , G06F3/06 , G06F16/18
摘要： A request is received at an interface configured to receive storage requests for storing data in the software-defined storage network using an append-only storage scheme. The requests include an identifier of a data object to be stored in the software-defined storage network. The requests are agnostic of interfaces and hardware-specific details of the storage devices of the software-defined storage network. A virtualization layer of the software-defined storage network accesses data indicative of space allocation for the plurality of storage devices; and policies for prioritizing performance of the software-defined storage network. Based on the data and policies, a physical storage location at the plurality of storage devices is selected for storing the data object. Metadata is generated for the data object indicating that the data object is an append-only object and mapping the physical storage location of the data object to the identifier. The request is translated to one or more instructions for storing the data object at the physical storage location using the append-only storage scheme. The data object is caused to be stored at the physical storage location using the append-only storage scheme. Data usable to render status information indicating that the data object has been appended is returned.

9. 发明申请

US20190155547A1 BLOCK STORAGE USING A HYBRID MEMORY DEVICE 审中-公开
公开(公告)号：US20190155547A1
公开(公告)日：2019-05-23
申请号：US16255677
申请日：2019-01-23
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Scott Chao-Chueh LEE , Robin A. ALEXANDER , Lee E. PREWITT , Chiuchin CHEN , Vladimir SADOVSKY
IPC分类号： G06F3/06
摘要： Techniques for block storage using a hybrid memory device are described. In at least some embodiments, a hybrid memory device includes a volatile memory portion, such as dynamic random access memory (DRAM). The hybrid memory device further includes non-volatile memory portion, such as flash memory. In at least some embodiments, the hybrid memory device can be embodied as a non-volatile dual in-line memory module, or NVDIMM. Techniques discussed herein employ various functionalities to enable the hybrid memory device to be exposed to various entities as an available block storage device.

10. 发明申请

US20180329643A1 Portable File-Backed Virtual Storage Class Memory 审中-公开
公开(公告)号：US20180329643A1
公开(公告)日：2018-11-15
申请号：US15640195
申请日：2017-06-30
申请人： Microsoft Technology Licensing, LLC
发明人： Matthew David KURJANOWICZ , Attilio MAINETTI , Scott Chao-Chueh LEE
IPC分类号： G06F3/06 , G06F9/455
CPC分类号： G06F3/0643 , G06F3/0604 , G06F3/065 , G06F3/0664 , G06F3/0683 , G06F9/45545 , G06F9/45558 , G06F12/1009 , G06F2009/45579 , G06F2009/45583
摘要： Reading and copying data as file data in a persistent memory storage device. A method may be practiced in a virtual machine environment. The virtual machine environment includes a persistent memory storage device. The persistent memory storage device has the ability to appear as a memory device having available memory to a virtual machine on a host and as a file to the host. The method includes acts for copying data stored in the persistent memory storage device for a first virtual machine. The method includes the host reading data from the persistent memory storage device as file data. The method further includes the host writing the data from the persistent memory storage device as file data.

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