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公开(公告)号：US09619352B2
公开(公告)日：2017-04-11
申请号：US14220787
申请日：2014-03-20
Applicant: NetApp Inc.
Inventor： Chaitanya V. Patel , Laurent Nicolas Lambert , Linda Ann Riedle , Sandeep T. Nirmale
IPC: G06F11/20
CPC classification number: G06F11/1662 , G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/2071 , G06F11/2082 , G06F11/2092
Abstract: One or more techniques and/or systems are provided for controlling restoration of a storage aggregate. For example, a local storage device, located at a first storage site, and a remote storage device, located at a second storage site, may be assigned to a first storage aggregate. Responsive to a disaster of the first storage site, a gate may be created for the local storage device. The gate may block automated reconstruction and/or automated synchronization that may otherwise occur with respect to the local storage device. Until the local storage device is restored, the remote storage device may be used to service I/O requests that were otherwise directed to the local storage device. Responsive to receiving a user restoration command, the gate may be removed from the local storage device. Synchronization between the local storage device and the remote storage device may then be facilitated.
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公开(公告)号：US20160170854A1
公开(公告)日：2016-06-16
申请号：US15052408
申请日：2016-02-24
Applicant: NetApp Inc.
Inventor： Linda A. Riedle , Fani Jenkins , Bhoovaraghan Subramanian , Sandeep T. Nirmale , Deepan Natesan Seeralan , Yong E. Cho
CPC classification number: G06F11/2094 , G06F3/0619 , G06F3/065 , G06F3/0688 , G06F11/1471 , G06F11/2023 , G06F11/203 , G06F11/2033 , G06F11/2043 , G06F11/2071 , G06F11/2097 , G06F2201/805
Abstract: In one aspect of the disclosure, progress identifiers (e.g., a plurality of flags) and/or generation numbers are utilized to determine a “correct” non-volatile random access memory (NVRAM) replay source to use during a retried switchover or early switchback. Initially, a switchover sequence is initiated. The switchover sequence includes a replay of logged information to storage devices of an aggregate to ensure data consistency of the aggregate. Progress of the switchover sequence is tracked using the progress identifiers and/or generation numbers. After an interruption during the switchover sequence, switchover is retried or an early switchback is performed. The retried switchover or early switchback decides whether to replay logged information, and, if so, determines an NVRAM replay source to replay logged information from based on states of the progress identifiers and/or comparison of the generation numbers.
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公开(公告)号：US20170199793A1
公开(公告)日：2017-07-13
申请号：US15468896
申请日：2017-03-24
Applicant: NetApp Inc.
Inventor： Chaitanya V. Patel , Laurent Nicolas Lambert , Linda Ann Riedle , Sandeep T. Nirmale
CPC classification number: G06F11/1662 , G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/2071 , G06F11/2082 , G06F11/2092
Abstract: One or more techniques and/or systems are provided for controlling restoration of a storage aggregate. For example, a local storage device, located at a first storage site, and a remote storage device, located at a second storage site, may be assigned to a first storage aggregate. Responsive to a disaster of the first storage site, a gate may be created for the local storage device. The gate may block automated reconstruction and/or automated synchronization that may otherwise occur with respect to the local storage device. Until the local storage device is restored, the remote storage device may be used to service I/O requests that were otherwise directed to the local storage device. Responsive to receiving a user restoration command, the gate may be removed from the local storage device. Synchronization between the local storage device and the remote storage device may then be facilitated.
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公开(公告)号：US09361194B2
公开(公告)日：2016-06-07
申请号：US14261737
申请日：2014-04-25
Applicant: NetApp Inc.
Inventor： Brandon Taylor Long , Linda Ann Riedle , Manali Kulkami , Sandeep T. Nirmale , Vikram Harakere Krishnamurthy
CPC classification number: G06F3/065 , G06F3/0619 , G06F3/067 , G06F11/2069 , G06F11/2071 , G06F11/2082 , G06F11/2094 , H04L67/1095 , H04L67/1097 , H04L69/40
Abstract: One or more techniques and/or systems are provided for mirror vote synchronization. For example, a first storage device is located at a first storage site, and a second storage device is located at a second storage site. The second storage device is configured according to a data mirroring configuration where data from the first storage device is mirrored to the second storage device. Mirror vote metadata is generated based upon an up-to-date state of the data mirroring configuration. The mirror vote metadata indicates whether the first storage device and/or the second storage device are up-to-date or not. The mirror vote metadata may be replicated between the first storage site and the second storage site. If the first storage site fails, then the second storage site may provide switchover operation using the second storage device based upon the mirror vote metadata.
Abstract translation: 提供一个或多个技术和/或系统用于镜像投票同步。 例如，第一存储装置位于第一存储部位，第二存储装置位于第二存储部位。 第二存储装置根据数据镜像配置配置，其中来自第一存储设备的数据被镜像到第二存储设备。 基于数据镜像配置的最新状态生成镜像元数据。 镜像表决元数据指示第一存储设备和/或第二存储设备是否是最新的。 可以在第一存储站点和第二存储站点之间复制镜像投票元数据。 如果第一存储站点发生故障，则第二存储站点可以基于镜像投票元数据使用第二存储设备提供切换操作。
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公开(公告)号：US20150269044A1
公开(公告)日：2015-09-24
申请号：US14220787
申请日：2014-03-20
Applicant: NetApp Inc.
Inventor： Chaitanya V. Patel , Laurent Nicolas Lambert , Linda Ann Riedle , Sandeep T. Nirmale
CPC classification number: G06F11/1662 , G06F3/0619 , G06F3/065 , G06F3/0683 , G06F11/2071 , G06F11/2082 , G06F11/2092
Abstract: One or more techniques and/or systems are provided for controlling restoration of a storage aggregate. For example, a local storage device, located at a first storage site, and a remote storage device, located at a second storage site, may be assigned to a first storage aggregate. Responsive to a disaster of the first storage site, a gate may be created for the local storage device. The gate may block automated reconstruction and/or automated synchronization that may otherwise occur with respect to the local storage device. Until the local storage device is restored, the remote storage device may be used to service I/O requests that were otherwise directed to the local storage device. Responsive to receiving a user restoration command, the gate may be removed from the local storage device. Synchronization between the local storage device and the remote storage device may then be facilitated.
Abstract translation: 提供一个或多个技术和/或系统来控制存储集合体的恢复。 例如，可以将位于第一存储站点的本地存储设备和位于第二存储站点的远程存储设备分配给第一存储集合。 响应第一个存储站点的灾难，可以为本地存储设备创建一个门。 门可以阻止自动重建和/或自动同步，否则可能相对于本地存储设备发生。 在恢复本地存储设备之前，远程存储设备可以用于服务于其他方式被指向本地存储设备的I / O请求。 响应于接收用户恢复命令，可以从本地存储设备移除该门。 然后便于本地存储设备与远程存储设备之间的同步。
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Patent Agency Ranking
公开(公告)号：US10853210B2
公开(公告)日：2020-12-01
申请号：US16353049
申请日：2019-03-14
Applicant: NetApp Inc.
Inventor： Daniel Curtis Wilson , Deepan Natesan Seeralan , Kyle Diggs Sterling , Linda Ann Riedle , Loellyn Jane Cassell , Mayank Saxena , Sandeep T. Nirmale
Abstract: One or more techniques and/or systems are provided for storage device health status synchronization. For example, a first health status registry is maintained for a first storage controller at a first storage site. The first storage controller stores storage device health status information of storage devices currently owned by or assigned to the first storage controller within the first health status registry. A second health status registry is maintained for a second storage controller at a second storage site. The second storage controller stores storage device health status information of storage device currently owned by or assigned to the second storage controller within the second health status registry. The first health status registry and the second health status registry are synchronized during operation of the first storage site and the second storage site and/or are merged between the first storage site and the second storage site after disaster recovery.
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公开(公告)号：US20190205228A1
公开(公告)日：2019-07-04
申请号：US16353049
申请日：2019-03-14
Applicant: NetApp Inc.
Inventor： Daniel Curtis Wilson , Deepan Natesan Seeralan , Kyle Diggs Sterling , Linda Ann Riedle , Loellyn Jane Cassell , Mayank Saxena , Sandeep T. Nirmale
CPC classification number: G06F11/2092 , G06F11/1658 , G06F11/3006 , G06F11/3055
Abstract: One or more techniques and/or systems are provided for storage device health status synchronization. For example, a first health status registry is maintained for a first storage controller at a first storage site. The first storage controller stores storage device health status information of storage devices currently owned by or assigned to the first storage controller within the first health status registry. A second health status registry is maintained for a second storage controller at a second storage site. The second storage controller stores storage device health status information of storage device currently owned by or assigned to the second storage controller within the second health status registry. The first health status registry and the second health status registry are synchronized during operation of the first storage site and the second storage site and/or are merged between the first storage site and the second storage site after disaster recovery.
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公开(公告)号：US10289501B2
公开(公告)日：2019-05-14
申请号：US15468896
申请日：2017-03-24
Applicant: NetApp Inc.
Inventor： Chaitanya V. Patel , Laurent Nicolas Lambert , Linda Ann Riedle , Sandeep T. Nirmale
Abstract: One or more techniques and/or systems are provided for controlling restoration of a storage aggregate. For example, a local storage device, located at a first storage site, and a remote storage device, located at a second storage site, may be assigned to a first storage aggregate. Responsive to a disaster of the first storage site, a gate may be created for the local storage device. The gate may block automated reconstruction and/or automated synchronization that may otherwise occur with respect to the local storage device. Until the local storage device is restored, the remote storage device may be used to service I/O requests that were otherwise directed to the local storage device. Responsive to receiving a user restoration command, the gate may be removed from the local storage device. Synchronization between the local storage device and the remote storage device may then be facilitated.
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公开(公告)号：US20160266810A1
公开(公告)日：2016-09-15
申请号：US15162536
申请日：2016-05-23
Applicant: NetApp Inc.
Inventor： Daniel Curtis Wilson , Deepan Natesan Seeralan , Kyle Diggs Sterling , Linda Ann Riedle , Loellyn Jane Cassell , Mayank Saxena , Sandeep T. Nirmale
CPC classification number: G06F11/2092 , G06F11/1658 , G06F11/3006 , G06F11/3055
Abstract: One or more techniques and/or systems are provided for storage device health status synchronization. For example, a first health status registry is maintained for a first storage controller at a first storage site. The first storage controller stores storage device health status information of storage devices currently owned by or assigned to the first storage controller within the first health status registry. A second health status registry is maintained for a second storage controller at a second storage site. The second storage controller stores storage device health status information of storage device currently owned by or assigned to the second storage controller within the second health status registry. The first health status registry and the second health status registry are synchronized during operation of the first storage site and the second storage site and/or are merged between the first storage site and the second storage site after disaster recovery.
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公开(公告)号：US20150269041A1
公开(公告)日：2015-09-24
申请号：US14261737
申请日：2014-04-25
Applicant: NetApp Inc.
Inventor： Brandon Taylor Long , Linda Ann Riedle , Manali Kulkami , Sandeep T. Nirmale , Vikram Harakere Krishnamurthy
CPC classification number: G06F3/065 , G06F3/0619 , G06F3/067 , G06F11/2069 , G06F11/2071 , G06F11/2082 , G06F11/2094 , H04L67/1095 , H04L67/1097 , H04L69/40
Abstract: One or more techniques and/or systems are provided for mirror vote synchronization. For example, a first storage device is located at a first storage site, and a second storage device is located at a second storage site. The second storage device is configured according to a data mirroring configuration where data from the first storage device is mirrored to the second storage device. Mirror vote metadata is generated based upon an up-to-date state of the data mirroring configuration. The mirror vote metadata indicates whether the first storage device and/or the second storage device are up-to-date or not. The mirror vote metadata may be replicated between the first storage site and the second storage site. If the first storage site fails, then the second storage site may provide switchover operation using the second storage device based upon the mirror vote metadata.
Abstract translation: 提供一个或多个技术和/或系统用于镜像投票同步。 例如，第一存储装置位于第一存储部位，第二存储装置位于第二存储部位。 第二存储装置根据数据镜像配置配置，其中来自第一存储设备的数据被镜像到第二存储设备。 基于数据镜像配置的最新状态生成镜像元数据。 镜像表决元数据指示第一存储设备和/或第二存储设备是否是最新的。 可以在第一存储站点和第二存储站点之间复制镜像投票元数据。 如果第一存储站点发生故障，则第二存储站点可以基于镜像投票元数据使用第二存储设备提供切换操作。
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