Pure Storage, Inc.

Lakshmi Narasimhan Sundararajan

Vinod Jayaraman

Prabir Paul

Nikhil Subhash Bhupale

Goutham Rao

Luis Pablo Pabón

Kshithij Iyer

Naveen Revanna

Paul Theunis

Venkatanarasimhan Ramakrishnan

An illustrative storage system provides distributed storage for use by containerized applications running in a container system. In some implementations, this includes converting data blocks of storage resources to distributed persistent storage such as thin-provisioned volumes for use by the containerized applications. In some implementations, the conversion includes using a device mapper to virtualize the data blocks of the storage resources to create a virtual storage pool backing datastore in which the thin-provisioned volumes are created.

Converting storage resources to distributed persistent storage for containerized applications

In some embodiments, storage operation routing in a container system may include receiving, by a container storage system executing on a node within a container system, a storage operation configured to be performed with respect to a storage resource; determining whether the storage resource is locally accessible at the node; and routing the storage operation based on the determining of whether the storage resource is locally accessible at the node. For example, the routing may be performed such that when the storage resource is not locally accessible at the node, the routing is by way of both a kernel space and a user space of the node, and when the storage resource is locally accessible at the node, the routing is contained within the kernel space of the node. Corresponding methods and systems are also disclosed.

Storage operation routing in a container system

An example method for detecting and remediating anomalies in a container system by a storage system comprises detecting, by a container storage management system, a change in resources utilized on a volume of the container system by an application of the container system; determining, by the container storage management system and in response to the detecting, whether the change in resources utilized is anomalous for the application; and performing, by the container storage management system and based on the determining, an action associated with the application.

Detecting and remediating anomalies of a container system by a distributed storage system

An illustrative distributed storage system detects a request to resize an online volume that provides persistent storage for a containerized application running in a container system, wherein the online volume is backed by a virtual block device created in device namespace using a device mapper virtualization of data blocks of one or more storage devices. The distributed storage system performs, in response to the request, a resize process to resize the online volume. The resizing of the online volume includes resizing the virtual block device. In some examples, a file system implemented on the virtual block device is also resized while the online volume is online. The storage system may manage inflight IOs over the virtual block device and the online volume such that the resize process is performed without error.

Online resize of a volume of a distributed storage system

In some embodiments, storage path routing in a container system includes: determining, within the container system, a storage operation directed to a storage resource; determining one or more conditions associated with a plurality of network paths to the storage resource, where the plurality of network paths includes a first network path through a storage area network and a second network path through a container system communication network; and routing, based on the one or more conditions, the storage operation to the storage resource using the first network path.

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Chennai, India

Lakshmi Narasimhan Sundararajan