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US 10,706,691 B2Granted
Switching dual virtual self-service terminals (SSTs)
AssigneeNCR Corporation
InventorWeston Lee Hecker
Life of this patent
Estimating the term…
Abstract
Dual Self-Service Terminal (SST) Virtual Machines (VMs) are provided. A VM is selected for processing a transaction on the SST as an active core. The active core is dynamically switched back and forth between a first VM and a second VM on a per-transaction basis. Upon failure, a last-successful image for the failing VM is reloaded for the failing VM when the failing VM is scheduled to be cycled back to the active core.
Claims10
A method, comprising:
- detecting a completion of a transaction that was processed by a first Virtual Machine (VM) of a Self-Service Terminal (SST);
- switching to a second VM as an active core for processing a next transaction from the SST;
- and
- imaging the first VM on storage of the SST as a first image when the transaction was successfully processed by the first VM.
1 more element
A Self-Service Terminal (SST), comprising:
- processors configured to load into memory and execute a first virtual machine (VM) image for a first VM, a second VM image for a second VM, and a switch;
- the first VM image;
- the second VM image;
- and
- the switch;
- wherein the switch is configured to:
- i) set an active core on the SST for transaction processing by alternating between the first VM and the second VM on a per-transaction basis, ii) capture snapshots representing the first VM image and the second VM image after the first VM and the second VM process assigned transactions successfully, and iii) re-load particular snapshots when one of:
- the first VM and the second VM fails during processing of their assigned transactions.
5 more elements
Dependencies are inferred from the claim text.