Hi Brian, You are also suffering from the dilemna I am facing at present. One global farm would be putting all our eggs into one basket. Especially if the DataStore gets corrupted. I appreciate that any new technology will be a risk. I guess I am trying to get a feel for how reliable DataStores have been over the XP history of products. In terms of failover, would it be possible to have failover behind a seamless app item on a 'Start Menu' list? Your help is much appreciated... Brian Lilley -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Brian Madden Sent: 20 April 2004 19:35 To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: global or multi regional citrix farms Well, first of all, as for farm failover, that's certainly something that can be done with relative ease at the web interface level. Honestly, the Citrix part of the equation is simple compared to how you're going to manage the "other" stuff that users need at each location. (Home drives, policies, etc.) i.e. Can a user in North America failover to Europe and still access their home drive? With PS3 (MetaFrame Presentation Server 3.0 not Playstation 3), you certainly have more options that would in theory support a single global farm (preferred zones, real delegated admin, etc.) although I personally would be a bit hesitant to deploy a single IMA DS in a "v 1.0" Citrix product globally like this. And, with the licensing changes, I'm not sure that there's any compelling reason to do a single farm. So, my gut feel is separate farms, web interface for everyone, and "fail over" at the web interface level.=20 But then again, one farm would be easier to manage... I just don't know if I'd do it yet. (I mean the IMA DB is still flat, so it's more like a global NT4 domain vs. global AD.) Brian Brian Madden brian@xxxxxxxxxxxxxxx +1.202.302.3657 Visit www.brianmadden.com for in-depth Citrix, Terminal Server, and server-based computing news and analysis, white papers, downloadable videos, and product reviews. -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Lilley, Brian Sent: Tuesday, April 20, 2004 1:22 PM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] global or multi regional citrix farms Hi all, Bit of an urgent request here... I need you guys that have designed big Citrix farms to give me the benefit of your experience, Brian.. Jim et al... you know who you are.... I have a customer who currently has around 50 1.8 farms dotted around the globe. They are looking to consolidate into a Presentation Server III farm. The intial thoughts were to simply have one global farm with a highly resilient datastore replicated around the globe. My concern with the single global farm firstly, is the ability to maintain the integrity and availability of the Datastore. The client are looking at Oracle on Sun kit for the Datastore. Despite their expertise on high availability database solutions, I am still aware that the datastore can be easily corrupted, i.e. running chfarm whilst the CMC is open... My question is this... what would you advise for a 20,000 user Citrix farm split approx. equally across some 10 countries? Are farm failover solutions available? Thanks in advance... B =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D This message is for the sole use of the intended recipient. If you received this message in error please delete it and notify us. 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