On Mon, Jun 14, 2021 at 10:27:57PM -0400, Martin K. Petersen wrote: > > Out of curiosity, do you have any idea whether there is any storage > > that offers DIF with a different Logical Block Size than 512 (I > > haven't see any, although, that doesn't say much)? Just re-read some > > parts of our HBA specs and we probably would be in trouble, if it > > does, with how we do things here. > > I have a few that are 4Kn+8. It wouldn't say these are very common, the > 16-bit CRC isn't that great with 4K blocks. > > To address the block size issue we defined a couple of new protection > formats in NVMe. These allow for 32 and 64-bit CRCs, larger reference > tags, etc. However, these enhancements have yet to percolate down into > SCSI/SBC. Oh, interesting. Thanks for sharing. -- Best Regards, Benjamin Block / Linux on IBM Z Kernel Development / IBM Systems IBM Deutschland Research & Development GmbH / https://www.ibm.com/privacy Vorsitz. AufsR.: Gregor Pillen / Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen / Registergericht: AmtsG Stuttgart, HRB 243294
