Performing a changeover from a first virtual node to a second virtual node
First Claim
1. A system, comprising:
- a processor;
a non-transitory computer readable medium including;
a first virtual node comprising a first virtual machine;
a director in communication with the first virtual node, wherein the director is executed by the processor to perform operations, the operations comprising;
quiescing configuration activity at the first virtual node;
creating a second virtual node with Input/Output (I/O) access to the second virtual node blocked;
transferring configuration data from the first virtual node to the second virtual node;
committing a changeover from the first virtual node to the second virtual node;
blocking inbound communications to the first virtual node;
unblocking Input/Output (I/O) access at the second virtual node;
monitoring outbound communications from the first virtual node and signaling completion of all pending outbound communications; and
deleting the first virtual node in response to the first virtual node completing the pending outbound communications.
1 Assignment
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Accused Products
Abstract
Apparatus for non-disruptive error recovery in a clustered system, comprises a node instance configuration activity quiescing component for quiescing configuration activity at a first virtual node instance; a node instance creation component for creating a second virtual node instance with I/O access blocked; a configuration transfer component for transferring configuration data from the first to the second virtual node instance; a commit component for committing the changeover from the first to the second virtual node instance; a node instance communications blocking component for blocking inbound communications to a first virtual node instance; a node instance communications unblocking component for unblocking I/O access at the second virtual node instance; a communication control component for monitoring outbound communications from the first virtual node instance and signalling completion of all pending outbound communications; and a node instance deletion component for deleting the first virtual node instance.
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Citations
22 Claims
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1. A system, comprising:
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a processor; a non-transitory computer readable medium including; a first virtual node comprising a first virtual machine; a director in communication with the first virtual node, wherein the director is executed by the processor to perform operations, the operations comprising; quiescing configuration activity at the first virtual node; creating a second virtual node with Input/Output (I/O) access to the second virtual node blocked; transferring configuration data from the first virtual node to the second virtual node; committing a changeover from the first virtual node to the second virtual node; blocking inbound communications to the first virtual node; unblocking Input/Output (I/O) access at the second virtual node; monitoring outbound communications from the first virtual node and signaling completion of all pending outbound communications; and deleting the first virtual node in response to the first virtual node completing the pending outbound communications. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method, comprising:
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quiescing configuration activity at a first virtual node comprising a first virtual machine; creating a second virtual node with Input/Output (I/O) access to the second virtual node blocked; transferring configuration data from the first virtual node to the second virtual node; committing a changeover from the first virtual node to the second virtual node; blocking inbound communications to the first virtual node; unblocking Input/Output (I/O) access at the second virtual node; monitoring outbound communications from the first virtual node and signaling completion of all pending outbound communications; and deleting the first virtual node in response to the first virtual node completing the pending outbound communications. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer readable medium having software executed by a processor to perform operations, the operations comprising:
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quiescing configuration activity at a first virtual node comprising a first virtual machine; creating a second virtual node with Input/Output (I/O) access to the second virtual node blocked; transferring configuration data from the first virtual node to the second virtual node; committing a changeover from the first virtual node to the second virtual node; blocking inbound communications to the first virtual node; unblocking Input/Output (I/O) access at the second virtual node; monitoring outbound communications from the first virtual node and signaling completion of all pending outbound communications; and deleting the first virtual node in response to the first virtual node completing the pending outbound communications. - View Dependent Claims (21, 22)
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Specification