Reliably testing virtual machine failover using differencing disks
First Claim
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1. A machine-implemented method, comprising:
- maintaining a replica data set for a replica virtual machine to back up a primary data set for a primary virtual machine; and
executing a test operation on the replica data set with a test virtual machine while the replica data set continues to replicate the primary data set.
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Abstract
In one embodiment, a virtual machine replication system may test a replica data set while continuing to replicate a primary data set. A data storage 250 may store a replica data set for a replica virtual machine 302 to back up a primary data set for a primary virtual machine 304. The data storage 250 may preserve a test point in time 322 in the replica data set using a test differencing disk 344. A processor 220 may execute a test virtual machine 342 that performs a test operation on the test point in time 322 while the replica data set continues to replicate the primary data set.
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Citations
20 Claims
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1. A machine-implemented method, comprising:
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maintaining a replica data set for a replica virtual machine to back up a primary data set for a primary virtual machine; and executing a test operation on the replica data set with a test virtual machine while the replica data set continues to replicate the primary data set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A tangible computer-readable medium having a set of instructions detailing a method stored thereon that when executed by one or more processors cause the one or more processors to perform the method, the method comprising:
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maintaining a replica data set for a replica virtual machine to back up a primary data set for a primary virtual machine; preserving a test point in time in the replica data set using a test differencing disk; and executing a test operation on the test point in time with a test virtual machine. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A virtual machine replication server, comprising:
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a data storage that stores a replica data set for a replica virtual machine to back up a primary data set for a primary virtual machine and preserves a test point in time in the replica data set using a test differencing disk; and a processor that executes a test virtual machine that performs a test operation on the test point in time while the replica data set continues to replicate the primary data set. - View Dependent Claims (19, 20)
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Specification