If he waited, the drive might lock up completely over the weekend. If he updated now and the power flickered… the building’s UPS was old. Really old.
The culprit was a batch of ADATA SU630 SSDs—budget-friendly workhorses that had suddenly become temperamental. They were stuttering, dropping off the network like tired runners collapsing before the finish line. Elias knew the diagnosis before he even pulled the logs: a firmware bug was choking the controller’s NAND management.
Before diving into the “how,” let’s explore the “why.” The ADATA SU630 uses QLC (Quad-Level Cell) NAND flash and a DRAM-less design with SLC caching. Firmware updates for this specific drive typically address: