US 2016/0110111 A1 · EFFICIENT INITIALIZATION OF A THINLY PROVISIONED STORAGE ARRAY

Abstract

In at least one embodiment, a data storage system has a plurality of non-volatile storage devices, a higher level controller and one or more lower level controllers. In response to one or more inputs, the higher level controller of the data storage system issues an initialization command specifying initialization of a storage extent. In response to the initialization command, one or more lower level controllers issue dataless initialization commands to the plurality of non-volatile storage devices. In response to the dataless initialization commands, multiple first non-volatile storage devices among the plurality of non-volatile storage devices each initialize a respective data portion of the storage extent and a second non-volatile storage device among the plurality of non-volatile storage devices initializes a data protection portion of the storage extent.

Claims19

Dependent claims

A method in a data storage system having a plurality of non-volatile storage devices, the method comprising:

in response to one or more inputs, a higher level controller of the data storage system issuing an initialization command specifying initialization of a storage extent;
in response to the initialization command, one or more lower level controllers issuing dataless initialization commands to the plurality of non-volatile storage devices;
and
in response to the dataless initialization commands, multiple first non-volatile storage devices among the plurality of non-volatile storage devices each initializing a respective data portion of the storage extent and a second non-volatile storage device among the plurality of non-volatile storage devices initializing a data protection portion of the storage extent.

1 more element

A program product, comprising:

a storage device;
and
program code stored in the storage device, wherein the program code, when executed in a data storage system including a plurality of non-volatile storage devices, causes the data storage system to perform:
in response to one or more inputs, a higher level controller of the data storage system issuing an initialization command specifying initialization of a storage extent;
in response to the initialization command, one or more lower level controllers issuing dataless initialization commands to the plurality of non-volatile storage devices;
and
in response to the dataless initialization commands, multiple first non-volatile storage devices among the plurality of non-volatile storage devices each initializing a respective data portion of the storage extent and a second non-volatile storage device among the plurality of non-volatile storage devices initializing a data protection portion of the storage extent.

4 more elements

Dependencies are inferred from the claim text.

Efficient initialization of a thinly provisioned storage array

Life of this patent

Efficient initialization of a thinly provisioned storage array

Life of this patent

Abstract

Claims19