Abstract: Approaches for data processing at a database system are described. A method may include identifying a first subset of provisioning tasks associated with a first phase of the multi-phase provisioning procedure and a second subset of provisioning tasks associated with a second phase of the multi-phase provisioning procedure. The method may include running the first subset of provisioning tasks on a plurality of software instances of a pool of software instances prior to a provisioning request for the software instance. The method may include receiving, from a user, the provisioning request. The method may include running, based at least in part on the provisioning request and on the software instance from the pool of software instances, the second subset of provisioning tasks, wherein the second subset of provisioning tasks are specific to the user. The method may include provisioning the software instance to the user.

Abstract: For open loop phase pre-charge, an apparatus includes a Switching Mode Power Supply (SMPS) charging diode and a charge generator. The SMPS charging diode pre-charges an SMPS to a regulation set point from at least one phase of an Alternating Current (AC) voltage. The charge generator is powered by the pre-charged SMPS. In response to detecting the regulation set point iteratively, the charge generator detects a specified phase angle of the AC voltage. In response to the specified phase angle, the charge generator iteratively generates a charging voltage during positive voltage interval that charges a Direct Current (DC) bus capacitor to a target DC bus voltage within a charging time interval. At least a portion of the charge generator comprises one or more of hardware and executable code, the executable code stored on one or more computer readable storage media.

Abstract: For open loop phase pre-charge, an apparatus includes a Switching Mode Power Supply (SMPS) charging diode and a charge generator. The SMPS charging diode pre-charges an SMPS to a regulation set point from at least one phase of an Alternating Current (AC) voltage. The charge generator is powered by the pre-charged SMPS. In response to detecting the regulation set point iteratively, the charge generator detects a specified phase angle of the AC voltage. In response to the specified phase angle, the charge generator iteratively generates a charging voltage during positive voltage interval that charges a Direct Current (DC) bus capacitor to a target DC bus voltage within a charging time interval. At least a portion of the charge generator comprises one or more of hardware and executable code, the executable code stored on one or more computer readable storage media.