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a=6eWqkTHjU83fiwn7nKZWdM+Sl24=:19 a=z/mQ4Ysz8XfWz/Q5cLBRGdckG28=:19 a=lCpzRmAYbLLaTzLvsPZ7Mbvzbb8=:19 a=1VY8xy4-P1P2kjXU:21 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=wP3pNCr1ah4A:10 a=GoEa3M9JfhUA:10 a=VkNPw1HP01LnGYTKEx00:22 a=w-qf_exSS2nfYWw1HlsA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjA0MDE0NyBTYWx0ZWRfX7YJzoynwPwIG aP5OwIW2bO2rmmkR9iiHf7k6RaE+6rEO8EC7M/Pi5UQM4e7D3Mnx5+kv+pQSV304RPQaTOQTXsr K43RHPXddSUrrsAlVfNxnHCnBk42ULhsYXcbZ5jO3YTagUjbcVyGwkyNKbyuO14PWz01e132bHi yLQ9qz3jPf4gfumvehUyH8dkOaM+CpR5xwpiihgUt8sOqEjDl6g6CfMjhL2BtaxEm1K2MJSYxM6 ToAIiek2kD072VU2I0TI/97n2YNeN/+IjvCQA01dRIZuYqZs6FuHi3DeyUuw7xppTiHv+ivOP1w yuiVS423R7x+066c5V7Mz+NhYZAFHOOxpza3R45dHCOWDls+3X/YFJp4wTyPBg6MRxEVjdp8kUe tbRQJ09Wy0CEcPAM2XAhFnHJ8WYd/w== On 12/1/25 10:09 PM, Christoph Hellwig wrote: > As the author of much of the block* layout code I agree with Chuck, just > want to throw in a little extra note: > > On Thu, Nov 27, 2025 at 11:40:50AM -0500, Chuck Lever wrote: >> NFSD's pNFS block layout with NVMe implementation is fresh from the >> factory (I think the implementation went into v6.12?). As with >> iSCSI/SCSI, try it and see if it works well enough for you. > So while the NVMe layout support is indeed very new, it's also very > little code, on the server side the support is entirely contained in > the nvme driver by implementing the get_unique_id method (~60 lines of > code) and on the client side it is looking for the nvme persistent > devices names (2 Lines of code after a small preparatory refactoring). > > So in general I think it should be taken as the same maturity as the > SCSI layout at this point. How does server fence a client using NVMe layout? -Dai