Dear Engineer How do you do The following message is: Unable to determine the size of /dev/genscsi/t10.DP______BACKPLANE000000 (Function not implemented). I'm sorry to bother you, but I really have a problem that has been bothering me for a long time. A data disk has been mounted to my ESXI, and raid is not configured. However, in a recent operation, I took this disk down, and it could not be recognized after installation. The following is the relevant screenshot, please help to check it. ESXI version: 6.2.5 [cid:image002.jpg@01D80B91.996ADAF0] [cid:image004.jpg@01D80B91.996ADAF0] ________________________________ Thank you very much. Best RegardsŁĄ