So, let's think about this..
You can set the replaytimeout and the truncationlagtimeout to zero, but the log shipping of SCR is inherently bursty and generally only starts if you have 50 logs queued. However, after the first 50 are copied, the rest get copied "in real time", but not applied in real time. There is always a 50 log file delay. You cannot back up an SCR target copy. You must back up the SCR source copy. The target copy uses circular logging, more or less. When you activate the SCR copy, it attempts to copy any log files that have not yet been copied (i.e., that were queued for copy). So..I'm not sure what you mean by "zero data loss". From: Liby Philip Mathew [mailto:lmat...@path-solutions.com] Sent: Tuesday, March 10, 2009 2:58 AM To: MS-Exchange Admin Issues Subject: SCR Zero Dataloss Hi there, I am in the midst of deploying SCR. My environment 2 DC, 1 stand alone Mailbox server on Windows 2003 x64 and 1 Edge server on Windows 2003 x64. How do I configure the SCR target for 0 data loss? What are the drawbacks when I opt for 0 data loss? What are the backup options I have? Right now I have NTBackup dump the database locally to the disk with log truncation and backup using Symantec 12 to tape. Appreciate a your inputs and suggestion Regards Liby _____ Disclaimer [The information contained in this e-mail message and any attached files are confidential information and intended solely for the use of the individual or entity to whom they are addressed. This transmission may contain information that is privileged, confidential or exempt from disclosure under applicable law. If you have received this e-mail in error, please notify the sender immediately and delete all copies. If you are not the intended recipient, any disclosure, copying, distribution, or use of the information contained herein is STRICTLY PROHIBITED. Path Solutions accepts no responsibility for any errors, omissions, computer viruses and other defects.] ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
