Abstract: In some examples, a data node may provide a file system executed in a user space. The data node may invoke a device check process configured to perform a test for failure of a storage device associated with a target volume by sending a file system level request for obtaining metadata of data stored to the target volume. For instance, the target volume may be a virtual storage volume that represents storage capacity on a network storage. The user-space file system may receive the request for the metadata and may retrieve preconfigured metadata of the target volume that is stored locally in advance of the invoking of the device check process. The preconfigured metadata may be sent to the device check process in response to the request. For example, the preconfigured metadata may at least partially cause the target volume to pass the test.

Abstract: In some examples, a data node may provide a file system executed in a user space. The data node may invoke a device check process configured to perform a test for failure of a storage device associated with a target volume by sending a file system level request for obtaining metadata of data stored to the target volume. For instance, the target volume may be a virtual storage volume that represents storage capacity on a network storage. The user-space file system may receive the request for the metadata and may retrieve preconfigured metadata of the target volume that is stored locally in advance of the invoking of the device check process. The preconfigured metadata may be sent to the device check process in response to the request. For example, the preconfigured metadata may at least partially cause the target volume to pass the test.