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I am new to storage servers. Is there any API available to communicate with NVMe driver? Recently i came across IOCTl and SPDK, but i didn't get a clear idea about how to use the same. Does NVMe passthru command come under IOCTL?

tried to do nvme read as seen in an example, read a file using nvme read in two ways using nvme utility and io passthru. Using nvme utility read success msg is obtained, while io pasthru command didnt return a read success msg.do io passthru command return a success msg

SHEKHA SHOUKATH
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  • What is it that you're trying to accomplish? Why do you want to communicate with the NVMe driver? – CryptoFool Nov 15 '22 at 06:58
  • i want to read data from an NVMe SSD in a SSD storage server, can i do this, simply using nvme read command. as i am new to this storage servers , i am not familiar with read and write an ssd – SHEKHA SHOUKATH Nov 15 '22 at 08:36
  • Why is it that you need to have specific knowledge of the technology providing storage to the server? One normally maps a SSD onto a portion of the host's filesystem, and then reads and writes to/from it via standard filesystem calls. Application code normally doesn't and shouldn't have knowledge of the underlying hardware. If you're talking about storage on a remote server, this is even more true. In those cases, you would normally be using `ftp`, `sftp`, `NFS`, or some other network protocol. Why can't you read and write using standard filesystem or network I/O operations? – CryptoFool Nov 15 '22 at 18:29
  • i am not familiar with the mentioned filesystem calls – SHEKHA SHOUKATH Nov 16 '22 at 11:09

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