Yes, for the WNLB, the price is right. But, with the few tests I have done, it seems painful to use. I have seen outages as the servers are rebooted and booted etc. as the system trys to converge.
Do you have a favorite among the lower end? I have about 500 users on average. ________________________________ From: Michael B. Smith [mailto:mich...@smithcons.com] Sent: Tuesday, February 01, 2011 12:38 PM To: MS-Exchange Admin Issues Subject: RE: CAS Clustering - Hardware or software? Most third-party solutions will provide you significantly more features (such as application awareness) than Windows NLB. However, the price is right for Windows NLB. Inexpensive certified load balancers include those from Kemp Technologies and Coyote Point. Obviously, you can go all the way up the chain to a Cisco Content Switch, or a BigIP, or a NetScaler. You pay you money. :) Regards, Michael B. Smith Consultant and Exchange MVP http://TheEssentialExchange.com From: Stringham, Steven [mailto:sstri...@lrlaw.com] Sent: Tuesday, February 01, 2011 2:32 PM To: MS-Exchange Admin Issues Subject: CAS Clustering - Hardware or software? I am setting up a new Exchange 2010 environment - migrating from 2003. I am very excited about the redundancy features. I have two CAS machines, and two Mailstore machines setup. I want to create a cluster. These are all virtualized with VMWare ESXi 4.1. I have tried a WNLB cluster using unicode. This was a disaster - my test users were periodically locked up as the cluster went from one machine to the other. Turns out that you really should do multicast WNLB on a VM Cluster - per VMWare . But, that would mean setting up all my switch ports with the extra traffic that a multicast would require. So, the question - what do you recommend - hardware or software load balancer in this instance? Do you recommend the Windows NLM multicast (icmp?) or an external device/software? If external hardware, which one? Thanks Steven Stringham ---- For more information about Lewis and Roca LLP, please go to www.lewisandroca.com<http://www.lewisandroca.com/>. Phoenix (602) 262-5311 Tucson (520) 622-2090 Las Vegas (702) 949-8200 Reno (775) 823-2900 Minden (775) 586-9500 Albuquerque (505) 764-5400 Silicon Valley (650) 391-1380 This message is intended only for the use of the individual or entity to which it is addressed. If the reader of this message is not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the sender of this E-Mail by return E-Mail or by telephone. In accordance with Internal Revenue Service Circular 230, we advise you that if this email contains any tax advice, such tax advice was not intended or written to be used, and it cannot be used, by any taxpayer for the purpose of avoiding penalties that may be imposed on the taxpayer. --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist
