Abstract: Buffering data to be written to an array of non-volatile storage devices, including: receiving a request to write data to the array of non-volatile storage devices; sending, to a non-volatile random access memory (‘NVRAM’) device, an instruction to write the data to dynamic random access memory (‘DRAM’) in the NVRAM device, the DRAM configured to receive power from a primary power source, the DRAM further configured to receive power from a backup power source in response to the primary power source failing; and writing the data to the DRAM in the NVRAM device.

Abstract: An internal common slot battery backup unit (CSBBU) is provided that can be placed in a network device's power supply unit (PSU) slot. The CSBBU has the same features of a PSU and communicates with other PSUs in the network device in order to determine when it should supply power to the networking device and when it should be in a recharging state.