Complete pass. That and if it can "never" catch up (never being a reasonable time to achieve the goal that originally took you down this path making it worthwhile to perform an off-line defrag in the first place but not necessarily forever type of never).
As I mentioned in my previous post, I haven't seen enough of a reason to do this myself in most of the environments I've been part of. Oddly, hardware replacement or changes have been more of a reason to down the DC than just about anything else I've seen other than bad drivers/configurations. IMHO, reclaiming disk space is often not important enough to warrant the down-time of a DC to achieve it and I don't usually keep that many DC's so busy that they can never complete a pass and so remain on the defrag treadmill. Not that it isn't possible though.
For example, I haven't run into a situation like this: http://support.microsoft.com/kb/312403/ and flagrantly disregard this:
http://www.microsoft.com/resources/documentation/msa/edc/all/solution/en-us/pak/sog/edcops08.mspx?mfr=true
I had to assume that Yann is reading http://technet2.microsoft.com/WindowsServer/en/Library/54094485-71f6-4be8-8ebf-faa45bc5db4c1033.mspx?mfr=true
and is concerned about the upgrade from 2000 to 2003 (as stated in his email) and that he has a lot of free space that he needs to reclaim. Not that it isn't a valid requirement, but I've never personally been bothered. I've tended to have less than 40 GB dits to deal with.
Is that a blog coming on? Care to blog the recommendations you'd make if given the chance to be heard? ;)
Is that what you were asking? Or did I misunderstand your question Brett?
On 6/27/06, Brett Shirley <[EMAIL PROTECTED]> wrote:
Just curious, Al, where did you hear this from:
> doing this. Online defrag can be a wonderful thing, and off-line is
> typically recommended if online is not going to be able to finish
> during it's run time.
Because I've never recommended that. online defrag actually saves off
where it stopped, so it picks up on it's next run where it stopped last
run, and thus can finish over multiple runs. Or were you calling a
complete pass a run, and saying if it never finishes a complete pass?
Cheers,
BrettSh
On Tue, 27 Jun 2006, Yann wrote:
> Hello Al,
>
> Good links u pointed to me, especially the link to automate the process .....
> Thanks again for clarification on this subject.
>
> Yann
>
> Al Mulnick < [EMAIL PROTECTED]> a écrit :
> http://technet2.microsoft.com/WindowsServer/en/Library/5dd6f9eb-0533-4474-ac52-dca78c5471dd1033.mspx?mfr=true
>
> http://technet2.microsoft.com/WindowsServer/en/Library/975c456e-8b79-4ace-8363-82543236dbb31033.mspx?mfr=true
>
> http://technet2.microsoft.com/WindowsServer/f/?en/Library/5b1d983d-ffab-4514-a95e-6aa0420dacb51033.mspx
>
> Compacting is a local dit thing. You'll need to deal with it local
> to each machine. IIRC, you can automate/semi-automate this and can
> off-set it to not take out your entire forest at the same time. The
> above links should help.
>
> I've just never seen a big reason to do this on an automated basis.
> Even with similar amounts of DC's I didn't have enough of a reason to
> do this. You may want to verify that there is much free space before
> doing this. Online defrag can be a wonderful thing, and off-line is
> typically recommended if online is not going to be able to finish
> during it's run time.
>
>
>
> Al
>
>
> On 6/27/06, Yann <[EMAIL PROTECTED]> wrote: Hello,
>
> It may be a silly question, but when u perform a migration from winNT/w2k to a w2k3 domain, do i have next to compact+defrag the ntds.dit on *EACH* DC2k3 that have been migrated ? or may i do the operation on only one DC and this DC will replicate the state (compact&defrag) on all other DCs ?
> I have at least 60 DCs.... :(
> I think the answer will be "compact & defrag each DC that have been upgraded", but just to be 100 % sure.
>
> Thanks for answer.
>
> Yann
>
>
>
>
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