SVC cluster configuration node failover
First Claim
1. A failover method for responding to configuration node failures in a SAN Volume Controller (SVC) cluster, wherein the SVC cluster manages a plurality of storage devices and comprises a plurality of SVCs interconnected via the internet, each SVC acting as a separate node, and at any given time, only one node within the SVC cluster functions as a configuration node to operate external services, the method comprising:
- retrieving storage device events from a storage device event monitoring unit with a new configuration node in response to the storage device events occurring in the plurality of storage devices managed by the SVC cluster; and
saving with an original configuration node a storage device event log in the plurality of storage devices;
wherein the storage device event monitoring unit is in a node other than the original configuration node of the SVC cluster.
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Accused Products
Abstract
An SVC cluster manages a plurality of storage devices and includes a plurality of SVCs interconnected via a network, each SVC acting as a separate node. A new configuration node is activated in response to configuration node failures. The new configuration node retrieves client subscription information about events occurring in storage devices managed by the SVC cluster from the storage devices. In response to events occurring in the storage device managed by the SVC cluster, the new configuration node obtains storage device event information from a storage device event monitoring unit. The new configuration node sends storage device events to clients who have subscribed to this information according to subscription information obtained. The storage device is not installed in the original configuration node.
33 Citations
22 Claims
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1. A failover method for responding to configuration node failures in a SAN Volume Controller (SVC) cluster, wherein the SVC cluster manages a plurality of storage devices and comprises a plurality of SVCs interconnected via the internet, each SVC acting as a separate node, and at any given time, only one node within the SVC cluster functions as a configuration node to operate external services, the method comprising:
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retrieving storage device events from a storage device event monitoring unit with a new configuration node in response to the storage device events occurring in the plurality of storage devices managed by the SVC cluster; and saving with an original configuration node a storage device event log in the plurality of storage devices;
wherein the storage device event monitoring unit is in a node other than the original configuration node of the SVC cluster. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A failover system for responding to configuration node failures in a SAN Volume Controller (SVC) cluster, the SVC cluster manages a plurality of storage devices and comprises a plurality of SVCs interconnected via the internet, each SVC acting as a separate node, and at any given time, only one node within the SVC cluster functions as a configuration node to operate external services, the system comprising:
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a hardware processor; and a storage device event monitoring unit to retrieve the storage device events with a new configuration node in response to storage device events occurring in the plurality of storage devices managed by the SVC cluster; and monitor storage devices managed by the SVC cluster, wherein the storage device event monitoring unit is in a node other than an original configuration node of the SVC cluster; and
the storage device is used to store event log information of the original configuration node. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer program product for responding to configuration node failures in a SAN Volume Controller (SVC) cluster, the computer program product comprising a non-transitory computer-readable storage medium having computer-readable program code portions stored therein, the computer-readable program code portions comprising:
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an executable portion for retrieving storage device events from a storage device event monitoring unit with a new configuration node in response to the storage device events occurring in the plurality of storage devices managed by the SVC cluster; and an executable portion for saving with an original configuration node a storage device event log in the plurality of storage devices;
wherein the storage device event monitoring unit is in a node other than the original configuration node of the SVC cluster. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification