Disclaimer: I am not a Windows guy, and certainly not any kind of authoritiy on these topics. Nonetheless, in developing AD restore plans, I found the following statements in "Deploying the TSM Client in a Windows 2000 Environment", as well as its cited MS TechNet articles, etc. to be untrue. MS tech support confirmed the falsity of the statements in question, albeit in an unofficial manner. If anyone has reached conclusions to the contrary, please post them.
1. Incrementing USNs "For the authoritative restore to be successful, the Update Sequence Number of the restored object must be higher than the USN on the other domain controllers. By default, the authoritative restore process increases the USN by 100,000. In some situations this may not be enough, causing the authoritative restore to be ineffective. To overcome such situations the verinc parameter must be used when using the authoritative restore command. This allows the USN to be increased by a number higher than 100,000." from Deploying Tivoli Storage Manager for Windows 2000 (p. 118) This is misleading/false. The USN is not the important number here, and it is not directly related to "ntdsutil /verinc". Like the parameter says, "verinc" affects the "version number" of the AD object, not the USN. Try this and see for yourself. 2. Restoring the SYSVOL See: Deploying Tivoli Storage Manager for Windows 2000 (p. 124 - 127) I think besides being confusing, this section seems to indicate that part of the SYSVOL needs to be restored after any AD object is authoritatively restored. I have not found this to be the case, and the MS tech support person agreed, saying that the SYSVOL only needs to be restored after a Group Policy Object is restored. After restoring a user/computer, the SYSVOL shouldn't need to be restored. This also raises the point that the restoration of GPOs, which without using Group Policy Management Console is a pretty painful process, is notably absent from TSM documentation. If anyone out there is a Windows/AD expert and disagrees with these findings, please speak up and allow me to stand corrected. Adam Boyer
