I had no idea they had so many firmware versions for what is being sold under the same part number (I observed 3 firmware versions in a sample of 6 SU800-256 SSDs: R0247ANR, Q0922FS and R0247AC). If I had to build this RAID array again, I wouldn't have chosen ADATA. ADATA says that running these two firmware versions in RAID is fine. I'm currently running four SU800-256 (Firmware R0427ANR) in RAID10 and keeping an additional SU800-256 (Firmware R0427AC) as a 'hot' spare. CrystalDiskInfo is able to report SMART data for the individual drives even when they're in the RAID array, so diagnosing a failed drive is easy.

These SU800s are TLC, so we're sacrificing reliability for cost. Replacement of the SSD was as simple as replacing the failed drive with the new drive and the RAID Array automatically rebuilt the replacement SSD. Fortunately, the RAID Array never skipped a beat and the system continued to operate without issues (despite the failing and eventually failed SSD).įor anyone who needs a reasonably high degree of reliability with the ADATA SU800-256 in a desktop or server, I would strongly recommend RAID. The new SU800 is error-free (so far) and RAID controller errors are back to 0. My Intel RAID controller did eventually mark this failing SSD as 'Failed' (after less than 30 days of ownership) before I replaced it. I replaced the SU800 that was reporting an increasing number of 'Reallocated Sectors Count' and 'Reallocation Event Count' SMART errors. Knowing what I know now, I would not purchase ADATA SU800-256 SSDs for a RAID array (too many firmware versions for the same part number). Summary: My RAID10 array is running fine after replacing the failed SU800-256.

Update after replacing the failing SU800-256 in my RAID10 Array

Adata ssd drives windows 10