The MS paper illustrates a way to achieve this without the USN issue. neil
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tomasz Onyszko Sent: 08 March 2006 13:30 To: ActiveDir@mail.activedir.org Subject: Re: [ActiveDir] AD Lag Sites PAUL MAYES wrote: (...) > > No need for a lag site, just pick the hour on the timeline and restore > from that DC. Ok so it means that you might need bigger disk and you > can only snapshot down to 30mins. But if you're a bit creative with a > few DC's then you can get much better coverage than lag sites without > the need for more DC's or creative subnetting. > > Now I'm going to stand back and be shot down in flames. But thus far > playing with VSS is kind of casting doubt on plans for one or multiple > lag sites. I'm not going to bore with the how's and where's but it > might stimulate some discussion. (...) You can't use images or snapshots as a backup\recovery solutions for DC because You are risking getting into USN roll-back problem. Search through ActivDir.org archives for USN roll-back and You will find good explanation of this problem. -- Tomasz Onyszko http://www.w2k.pl/blog/ - (PL) http://blogs.dirteam.com/blogs/tomek/ - (EN) List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/ PLEASE READ: The information contained in this email is confidential and intended for the named recipient(s) only. If you are not an intended recipient of this email please notify the sender immediately and delete your copy from your system. You must not copy, distribute or take any further action in reliance on it. Email is not a secure method of communication and Nomura International plc ('NIplc') will not, to the extent permitted by law, accept responsibility or liability for (a) the accuracy or completeness of, or (b) the presence of any virus, worm or similar malicious or disabling code in, this message or any attachment(s) to it. If verification of this email is sought then please request a hard copy. Unless otherwise stated this email: (1) is not, and should not be treated or relied upon as, investment research; (2) contains views or opinions that are solely those of the author and do not necessarily represent those of NIplc; (3) is intended for informational purposes only and is not a recommendation, solicitation or offer to buy or sell securities or related financial instruments. NIplc does not provide investment services to private customers. Authorised and regulated by the Financial Services Authority. Registered in England no. 1550505 VAT No. 447 2492 35. Registered Office: 1 St Martin's-le-Grand, London, EC1A 4NP. A member of the Nomura group of companies. List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/
