Abstract: Systems and methods for implementing maintenance operations on storage devices in place of drive-based maintenance operations are disclosed. According to an aspect, a system includes a storage controller configured to receive a plurality of media scan configurations for maintenance from a plurality of storage devices. The data maintenance algorithms implemented across storage device and storage controller is also configured to tune and/or disable drive-based maintenance routines on one or more of the plurality of storage devices. Further, the BMC and/or storage controller is configured to perform controller-based maintenance operations in replacement of the drive-based maintenance routines of the one or more of the plurality of storage devices based on the received plurality of media scan configurations.

Abstract: A heat exchanger includes an upright center tube for connection to a drain line and an outer tube surrounding the upright center tube so as to define an annular space for connection to a supply line. Baffle portions are received within the annular space between the upright center tube and the outer tube and so as to be arranged to induce turbulence in the annular space while permitting the flow to remain in a substantially axial direction of the tubes. Sleeves may be used to connect the ends of the outer tube to the center tube so as to define a single wall portion of the center tube between the sleeves and double wall portions of the center tube where the center tube is overlapped by the sleeves such that the double wall portions are open axially outwardly and externally at the end of the outer tube.

Abstract: The present invention provides a new and improved lead-free and cadmium-free glass enamel composition that displays good flow at traditional glass enamel firing temperatures and upon firing produces an enamel finish that displays no cracking, good chemical resistance, good weatherability, and improved color values. The glass enamel composition of the present invention includes a glass component, an oxidizer, a pigment system, and optional vehicles and fillers. The presence of the oxidizer in the composition, which can be included as part of the glass component, as a separately added material, or both, improves the color values of the fired enamel as compared to enamels formed using similar glass enamel compositions having no oxidizer present.