Virtualizing non-volatile storage at a peripheral device

A system, comprising:

• at least one processor and a memory storing program instructions that when executed by the at least one processor cause the at least one processor to implement a host system;
• a peripheral device, connected to the host system at a bus implemented at the host system, wherein the peripheral device is further connected to one or more storage devices via a respective buses for the one or more storage devices that are separate from the bus implemented at the host system and wherein the peripheral device executes a storage virtualization application stored in a memory at the peripheral device;
• the peripheral device, configured to:
• perform an update to the storage virtualization application by:
• suspending processing of new access requests at the peripheral device
• saving operational state for the storage virtualization application;
• restarting the storage virtualization application based on a new version of the storage virtualization application stored in the memory and the saved operational state;
• and
• resuming processing of new access requests at the peripheral device.

A method, comprising:

• performing, by a peripheral device, an update to a storage virtualization application stored in a memory at the peripheral device and executed by the peripheral device, wherein the peripheral device is connected to a host system and one or more storage devices, and wherein performing the update comprises:
• suspending processing of new access requests at the peripheral device
• saving operational state for the storage virtualization application;
• restarting the storage virtualization application based on a new version of the storage virtualization application stored in the memory and the saved operational state;
• and
• resuming processing of new access requests at the peripheral device.

A peripheral device connected to a host system and one or more storage devices, wherein the peripheral device executes a storage virtualization application stored in a memory at the peripheral device, and wherein the peripheral device is configured to:

• perform an update to the storage virtualization application by:
• suspending processing of new access requests at the peripheral device
• saving operational state for the storage virtualization application;
• restarting the storage virtualization application based on a new version of the storage virtualization application stored in the memory and the saved operational state;
• and
• resuming processing of new access requests at the peripheral device.