Abstract: Systems and methods are provided for replacing a first server of a first node a computer network by adding a second server configured with a database system as a second node to the computer network. A snapshot of a first database of database files that is communicatively coupled to the first node may be taken. The snapshot may be applied to the second server by attaching the snapshot of the first database as a second database to the second server and configuring the second server to match the first server. A failover of the computer network to the second node with the second server having the second database attached may be forced. Voting may be switched to the second server of the second node of the computer network and the first node of the computer network may be removed when the forced failover is successful.

Abstract: Server instantiation or deployment with at least an orchestrated post-deployment configuration service utilizing an exemplary framework providing script orchestration, logging, retry logic and environment-specific infrastructure and service configurations. At least one repository may store configuration scripts (or their equivalent), including first scripts associated with, e.g., a multi-tenant system, vendor, database provider, controller, etc., and second scripts associated with, e.g., a tenant, a database client, customer, etc. After instantiating or installing a server, it may be configured with orchestrated execution to ensure successful first server configuration, and then further configured with orchestrated execution of second scripts to ensure successful subsequent server configuration. Orchestration includes retry logic, logging, and reboot support to repeat or continue script execution after reboot, and the number of scripts series is arbitrary, e.g., there may first, second, third, etc.

Abstract: Computer-implemented techniques for fair data scrubbing. The techniques can be used to balance a desire to verify recently stored data soon after it is stored on a target data storage media device, when the computing and networking cost of reconstructing the data in the event of a detected data storage media device error can be lower, against a desire to minimize the latency between rescrubbing data. By doing so, the techniques improve the operation of a data storage system that implements the techniques.

Abstract: Computer-implemented techniques for fair data scrubbing. The techniques can be used to balance a desire to verify recently stored data soon after it is stored on a target data storage media device, when the computing and networking cost of reconstructing the data in the event of a detected data storage media device error can be lower, against a desire to minimize the latency between rescrubbing data. By doing so, the techniques improve the operation of a data storage system that implements the techniques.