Recently I have built another NAS but this time based on the orange pi zero 2 with the same configuration as the one I open source few months before. The one on the right (white one) is the latest one while the left one (black one) is the old one.I have store both of these NAS, one powered up and one powered down for maintenance, at my university and a scheduled power outage bring down the new one. Generally speaking, power outage isn't a big issue for SBCs as they will just kick start themselves again after there are power again, but this time, it cannot detect any of the two hard drives.
At first I was questioning about the power management and regulation section of my design. So I added a bypass buck converter that supply 5V to the SATA to USB adapter's USB 5V rail, but issues still exists and IO error just shown up on the linux dmesg outputa
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