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公开(公告)号：US11416147B2
公开(公告)日：2022-08-16
申请号：US16124123
申请日：2018-09-06
IPC分类号： G06F3/06 , G06F12/0868
摘要： A method for protecting data in a storage system is disclosed. In one embodiment, such a method includes detecting, by a first rack power controller, first battery-on status associated with a first uninterruptible power supply. The method further detects, by a second rack power controller, second battery-on status associated with a second uninterruptible power supply. The method communicates, from the first rack power controller to the second rack power controller, the first battery-on status. The method then triggers, by the second rack power controller, a dump of modified data from memory to more persistent storage upon detecting both the first battery-on status and the second battery-on status. A corresponding system and computer program product are also disclosed.
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公开(公告)号：US11373782B2
公开(公告)日：2022-06-28
申请号：US16558253
申请日：2019-09-02
发明人： Todd C. Sorenson , Gary W. Batchelor , Ya-Huey Juan , Seamus Burke , Maoyun Tang , Trung N. Nguyen
摘要： A method is disclosed to identify a port that is associated with a faulty cable. In one embodiment, such a method identifies a cable to replace. The cable provides a path between a first port, residing on a first component, and a second port, residing on a second component. The method further identifies whether an alternative path, bypassing the first cable, exists between the first component and the second component. In the event the alternative path exists, the method sends, over the alternative path, from the first component to the second component, a command to activate an indicator on the second port. This command is received and executed by the second component to activate the indicator. A corresponding apparatus and computer program product are also disclosed.
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公开(公告)号：US11079947B2
公开(公告)日：2021-08-03
申请号：US16271817
申请日：2019-02-09
摘要： A method to ensure that a hardware management console powers up after a storage system loses external AC power is disclosed. In one embodiment, such a method includes detecting loss of external AC power to a storage system. The loss of external AC power causes the storage system to operate on battery power. The method further initiates, in response to the loss, shutdown of a hardware management console associated with the storage system. The method starts a timer in response to initiation of the shutdown. When the timer expires, the method power cycles the hardware management console, thereby causing the hardware management console to power up and restart. A corresponding system and computer program product are also disclosed.
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公开(公告)号：US11061818B1
公开(公告)日：2021-07-13
申请号：US16820295
申请日：2020-03-16
IPC分类号： G06F12/0871 , G06F12/0891 , G06F12/02 , G06F9/50 , G06F11/32 , G06F11/30 , G06F1/30 , G06F11/07
摘要： A computer-implemented method, according to one embodiment, includes: in response to experiencing a power loss event, resupplying power to NVRAM which includes a write cache. In response to detecting that the NVRAM has experienced a failure event, the NVRAM is temporarily guarded from further use. Moreover, a portion of volatile memory is allocated to serve as a temporary write cache. The allocated portion of volatile memory is also cleared. A determination is made as to whether data is present in the write cache in the NVRAM, and in response to determining that data is present in the write cache, one or more volumes in memory which correspond to the data present in the write cache in the NVRAM are marked as having experienced data loss. Furthermore, a warning is sent which indicates that data loss has been experienced by the one or more marked volumes in the memory.
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5.发明申请公开(公告)号：US20200174837A1
公开(公告)日：2020-06-04
申请号：US16208330
申请日：2018-12-03
摘要： Methods that can access a shared computing resource are provided. One method includes determining, by a processor, a level of stress for a shared computing resource during each increment of time in a predetermined period of time, determining an optimized block of time within the predetermined period of time to perform a set of background operations on the shared computing resource based on the determined level of stress, and performing the set of background operations during the optimized block of time. Apparatus and computer program products that can include, perform, and/or implement the methods are also provided.
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公开(公告)号：US10374940B2
公开(公告)日：2019-08-06
申请号：US15828235
申请日：2017-11-30
摘要： In accordance with one aspect of the present description, a node of the distributed computing system has multiple communication paths to a data processing resource lock which controls access to shared resources, for example. In this manner, at least one redundant communication path is provided between a node and a data processing resource lock to facilitate reliable transmission of data processing resource lock signals between the node and the data processing resource lock. Other features and aspects may be realized, depending upon the particular application.
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7.发明申请公开(公告)号：US20180160561A1
公开(公告)日：2018-06-07
申请号：US15369710
申请日：2016-12-05
CPC分类号： G06F13/4068
摘要： Provided are techniques for detecting a type of storage adapter connected to an Input/Output (I/O) bay and miscabling of a microbay housing the storage adapter. Under control of an Input/Ouput (I/O) bay, cable sidebands are driven high for a predetermined period of time. It is determined whether a cable sidebands response has been detected that indicates that the cable sidebands have been driven low. In response to determining that the cable sidebands response has been detected, it is determined that the I/O bay is connected to a first storage adapter supporting a first protocol for the cable sidebands. In response to determining that the cable sidebands response has not been detected, it is determined that the I/O bay is connected to a second storage adapter supporting a second protocol for the cable sidebands. Moreover, I/O bay and port numbers stored by the microbay are used to determine miscabling.
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公开(公告)号：US09887908B2
公开(公告)日：2018-02-06
申请号：US14885938
申请日：2015-10-16
CPC分类号： H04L45/22 , G06F9/526 , G06F11/0757 , G06F11/2033 , G06F11/221 , G06F21/70 , G06F2201/805
摘要： In accordance with one aspect of the present description, a node of the distributed computing system has multiple communication paths to a data processing resource lock which controls access to shared resources, for example. In this manner, at least one redundant communication path is provided between a node and a data processing resource lock to facilitate reliable transmission of data processing resource lock signals between the node and the data processing resource lock. Other features and aspects may be realized, depending upon the particular application.
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9.发明申请公开(公告)号：US20170351440A1
公开(公告)日：2017-12-07
申请号：US15172774
申请日：2016-06-03
IPC分类号： G06F3/06
CPC分类号： G06F3/0619 , G06F3/065 , G06F3/0689 , G06F11/14 , G06F11/1662
摘要： A secondary storage controller determines one or more tracks of one or more volumes in which data loss has occurred in the secondary storage controller. The secondary storage controller suspends a peer to peer remote copy operation between the secondary storage controller and a primary storage controller. Information on the one or more tracks of the one or more volumes in which the data loss has occurred is transmitted to the primary storage controller.
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公开(公告)号：US09753795B2
公开(公告)日：2017-09-05
申请号：US14147745
申请日：2014-01-06
CPC分类号： G06F11/076 , G06F11/0706 , G06F11/30
摘要： Dynamically adjust an error threshold in a data system based system status changes caused by either an external environment and/or an internal status.
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