On Thu, 2015-01-08 at 10:58 -0800, Andy Grover wrote: > On 01/07/2015 02:11 PM, Douglas Gilbert wrote: > > T10 have now dropped the LID1 and LID4 stuff (its the length > > of the LIST IDENTIFIER field: 1 byte or 4 bytes) by obsoleting > > all LID1 variants in SPC-5 revision 01. So the LID1 variants > > are now gone and the LID4 appendage is dropped from the remaining > > commands. > > > > Obviously LID1 based XCOPY support is important for backward > > compatibility (back to SPC-2) but for the future maybe you might > > consider adding the equivalent LID4 support for a basic XCOPY. > > For example it means using the 3PC VPD page instead of the > > RECEIVE COPY RESULTS(operating parameters) command. I believe > > FreeNAS now supports both LID1 and LID4 variants of a basic > > XCOPY (plus a restricted version of ODX without snapshots). > > Hi Doug, > > I was trying to learn more about ODX and saw this page: > > http://msdn.microsoft.com/en-us/library/windows/desktop/hh848056%28v=vs.85%29.aspx > > but it just muddied the waters for me. Is ODX proprietary to MS, or is > it XCopy lite, or what? And what's the difference between xcopy lite and > LID4 XCOPY? > xcopy-lite in MSFT speak and LID4 XCOPY in T10 speak are the same thing. EG: Tokenized XCOPY where all reads from the copy source are done from a point-in-time snapshot. --nab -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
