Netapp, Inc.

Joseph Eli Webster

Clinton Douglas Knight

Alex Cameron Meade

Christopher Michael Reeder

The technology disclosed herein enables a storage orchestrator controller to prevent residual data from being written to a storage volume when a node fails non-gracefully. In a particular example, a method includes determining a health status of nodes in the cluster and, in response to determining a node in the cluster failed, marking the node as dirty. After marking the node as dirty and in response to determining the node is ready, the method includes directing the node to erase data in one or more write buffers at the node. The one of more write buffers buffer data for writing to one or more storage volumes when the one or more storage volumes are mounted by the node. After the one or more write buffers are erased, the method includes marking the node as clean.

Prevention of residual data writes after non-graceful node failure in a cluster

The technology disclosed herein enables a higher-level process to perform storage volume management with knowledge of a physical storage backend underlying a storage volume. In a particular example, a method includes mounting a storage volume to a computing node of the computing nodes. The storage volume is stored in a storage pool of a plurality of underlying storage pools. The method further includes determining an identifier for the storage pool, receiving a request to duplicate the storage volume, and determining a second identifier for a second storage pool of the plurality of underlying storage pools to which the storage volume will be duplicated. When the second identifier matches the identifier, creating a clone of the storage volume rather than copying the storage volume to the second storage pool.

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Wichita, KS, United States of America

Joseph Eli Webster