WaltR said:
Crucial's MX500 series SATA has Integrated Power Loss Immunity, which is amazing for a $42 250 GB Consumer SSD
honeybadger
Hi WaltR. Unfortunately Micron/Crucial's "power loss immunity" is not the same as protection for data in-flight - the implementation on the Crucial MX consumer drives is only guaranteed to protect data at rest from being corrupted by a new write in progress when power is lost. This is not the same as the end-to-end power-loss-protection offered on enterprise drives, which will protect "pending writes" that are in the drive's DRAM cache.
Thankfully the drive does obey the "flush cache" command properly, and will in fact push its DRAM to NAND when asked; but this is limited by the write speed of the NAND and whether or not there are pages free to be "fast programmed" as SLC, so it will likely be slow.
If you do have one, please feel free to benchmark it using the diskinfo command found in the thread in my signature and provide the results. I imagine the SLC write cache could let it deliver some fairly good numbers for bursty workloads, but sustained writes could cause it to choke.
And with all that said - welcome to the forums.