A clustered server goes offline due to a backplane failure.
Which of the following clusters does not lose capacity when a server goes offline?
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A. B. C. D.C.
A clustered server is a group of servers that work together to provide a highly available and fault-tolerant environment. In a clustered server environment, if one server goes offline, the other servers in the cluster can pick up the slack and continue to provide services to clients.
There are different types of clustered servers, and each type has its own advantages and disadvantages. In this scenario, we are asked which type of cluster does not lose capacity when a server goes offline.
A. Active-Passive Cluster: In an active-passive cluster, there is one active server and one passive server. The active server handles all requests while the passive server is on standby in case the active server fails. When the active server fails, the passive server takes over. In this scenario, if the active server goes offline due to a backplane failure, the passive server will take over, but the cluster will lose capacity.
B. Distributed Cluster: In a distributed cluster, each server in the cluster operates independently, and there is no centralized control. If one server goes offline, the other servers in the cluster can continue to provide services to clients. However, in this scenario, if a server goes offline due to a backplane failure, the cluster may still lose capacity if the workload was distributed across multiple servers.
C. Active-Active Cluster: In an active-active cluster, all servers are active and share the workload. If one server goes offline, the other servers in the cluster can pick up the slack and continue to provide services to clients. In this scenario, if a server goes offline due to a backplane failure, the other servers in the cluster can pick up the workload, and the cluster will not lose capacity.
D. Standby Switch Cluster: A standby switch cluster is not a type of clustered server. It is a type of networking redundancy that uses a standby switch to provide automatic failover in case the primary switch fails. It does not affect the capacity of the servers in the cluster.
Therefore, the correct answer is C. An active-active cluster does not lose capacity when a server goes offline due to a backplane failure.