My passive/passive/passive/passive Datacenter cluster has a perfect 100% downtime. Top that, I say! We even keep the power cables in a separate area to prevent any accidental uptime.
(:= -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Roger Seielstad Sent: Monday, October 14, 2002 12:45 PM To: Exchange Discussions Subject: RE: Views on Exchange Active Active clustering Then you don't need it active anywhere. ------------------------------------------------------ Roger D. Seielstad - MCSE Sr. Systems Administrator Inovis - Formerly Harbinger and Extricity Atlanta, GA > -----Original Message----- > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > Sent: Monday, October 14, 2002 11:14 AM > To: Exchange Discussions > Subject: RE: Views on Exchange Active Active clustering > > > Only the best. Microsoft DNS, active-directory integrated. :) > > -----Original Message----- > From: Roger Seielstad [mailto:[EMAIL PROTECTED]] > Sent: Monday, October 14, 2002 11:11 AM > To: Exchange Discussions > Subject: RE: Views on Exchange Active Active clustering > > > Only if you have crappy DNS servers. > > ------------------------------------------------------ > Roger D. Seielstad - MCSE > Sr. Systems Administrator > Inovis - Formerly Harbinger and Extricity > Atlanta, GA > > > > -----Original Message----- > > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > > Sent: Monday, October 14, 2002 11:10 AM > > To: Exchange Discussions > > Subject: RE: Views on Exchange Active Active clustering > > > > > > I vaguely remember talking about it in the past. Although we > > were talking about domain controllers. I thought that on the > > Exchange server I should still have it running. > > > > -----Original Message----- > > From: Roger Seielstad [mailto:[EMAIL PROTECTED]] > > Sent: Monday, October 14, 2002 11:06 AM > > To: Exchange Discussions > > Subject: RE: Views on Exchange Active Active clustering > > > > > > Just disable the DNS Client service - it only causes > problems anyway. > > > > ------------------------------------------------------ > > Roger D. Seielstad - MCSE > > Sr. Systems Administrator > > Inovis - Formerly Harbinger and Extricity > > Atlanta, GA > > > > > > > -----Original Message----- > > > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > > > Sent: Monday, October 14, 2002 10:46 AM > > > To: Exchange Discussions > > > Subject: RE: Views on Exchange Active Active clustering > > > > > > > > > I did just that. > > > > > > From personal experience I prefer to reboot the machine after > > > stopping the service (as opposed to simply restarting the > > > services). Sometimes the Information Store service takes > > > hours to stop. And if a full backup is running at the same > > > time (because it got delayed for whatever reason), IS will > > never stop. > > > > > > There was a period of time when I had to restart the back-end > > > Exchange server every night after applying SP2. Otherwise OWA > > > refused to work correctly the following day. > > > > > > But then I discovered that doing ipconfig /flushdns once in a > > > while solved that problem. > > > > > > -----Original Message----- > > > From: Great Cthulhu Jones [mailto:[EMAIL PROTECTED]] > > > Sent: Saturday, October 12, 2002 9:02 AM > > > To: Exchange Discussions > > > Subject: RE: Views on Exchange Active Active clustering > > > > > > > > > Heck, just write a batch file that stops all services and > > > bounces the box > > > Sunday at 2AM and you don't even have to call it in to an > > > operator. Five > > > nines, indeed. The box only really needs to be up when people > > > are using it. > > > > > > (:= > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]]On Behalf Of > Ed Crowley > > > Sent: Friday, October 11, 2002 9:00 PM > > > To: Exchange Discussions > > > Subject: RE: Views on Exchange Active Active clustering > > > > > > > > > It's a pretty steep price to pay to avoid an occasional > > Sunday morning > > > reboot. > > > > > > Ed Crowley MCSE+Internet MVP kcCC+I > > > Tech Consultant > > > hp Services > > > Protecting the world from PSTs and Bricked Backups! > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] On Behalf Of > Dennis Depp > > > Sent: Friday, October 11, 2002 12:15 AM > > > To: Exchange Discussions > > > Subject: RE: Views on Exchange Active Active clustering > > > > > > > > > I've looked into Exchange Active/Passive clustering for > our Exchange > > > 2000 servers. The largest Exchange problem that causes > downtime is > > > corruption in the database. I agree with Ed that clustering > > > cannot help > > > in this senario. However, even with high quality hardware, > > you still > > > have to deal with the 58 security patches and one Windows > > 2000 service > > > pack that have been issued this year. Granted not all the > > 58 security > > > patches are Windows 2000 related, but a large number of > > them are. An > > > active/passive cluster gives me the capability of > > installing hotfixes > > > and service packs without impacting my Exchange server even for a > > > reboot. Also I can install the hotfixes during the day on > > the passive > > > node and then failover that evening. If there is a problem, > > > I can fail > > > back to the unpatched node. The reduction in reboots and > late hours > > > makes an Active/passive cluster very appealing. However, > > clusters do > > > add a level of complexity. Unless you understand clusters > > > and how they > > > operate, this added complexity can decrease uptime instead > > of increase > > > it. > > > > > > Denny > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] On Behalf Of > Ed Crowley > > > Sent: Thursday, October 10, 2002 5:11 PM > > > To: Exchange Discussions > > > Subject: RE: Views on Exchange Active Active clustering > > > > > > > > > I think at this stage of its development clustering > > provides very poor > > > business value. It really protects you from very few failure > > > scenarios. > > > Instead, I'd make sure I had the most highly internally > > > redundant system > > > I could afford, buy a capable recovery and hot standby server, and > > > practice my disaster recovery skills. > > > > > > Ed Crowley MCSE+I MVP > > > Technical Consultant > > > hp Services > > > "There are seldom good technological solutions to behavioral > > > problems." > > > > > > > > > -----Original Message----- > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] On Behalf Of > Imran Iqbal > > > Sent: Thursday, October 10, 2002 2:36 AM > > > To: Exchange Discussions > > > Subject: Views on Exchange Active Active clustering > > > > > > > > > We are currently an Exchange 5.5 site, as part of our move > > to Exchange > > > 2000 I am considering setting up Exchange on a 2 node > Active Active > > > cluster and would be interested in hearing anyone views or > > real world > > > experiences with similar setups. Each server would have about 800 > > > active users and would probably be connected to a SAN for > the shared > > > storage. > > > > > > I have heard that there were memory issues with this setup > > pre SP3. I > > > would like to know if there are any other problems and if > > it is worth > > > doing > > > > > > Thanks in advance > > > > > > > > > Imran > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > _________________________________________________________________ > > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > > Archives: http://www.swynk.com/sitesearch/search.asp > > > To unsubscribe: mailto:[EMAIL PROTECTED] > > > Exchange List admin: [EMAIL PROTECTED] > > > > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Archives: http://www.swynk.com/sitesearch/search.asp > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > > Archives: http://www.swynk.com/sitesearch/search.asp > > To unsubscribe: mailto:[EMAIL PROTECTED] > > Exchange List admin: [EMAIL PROTECTED] > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
