Max, > I guess Type 1 and Type 3 mirrors can work because Type 3 doesn't have > a ref tag, right ? It will work but you'll lose ref tag checking on the Type 3 side of the mirror. So not exactly desirable. And in our experience, the ref tag is hugely important. Also, there are probably some headaches lurking in the slightly different app/ref tag escape handling if you mix the two formats. Whereas Type 1 and 2 are 100% identical in behavior if you use the LBA as the ref tag. >> Anyway. So my take on all this is that the T10-DIF-TYPE1-CRC profile is >> "it" and everything else is legacy. > > do you see any reason to support the broken type 3 ? Only to support existing installations. We can't really remove it without the risk of breaking something for somebody out there. -- Martin K. Petersen Oracle Linux Engineering
