Difficult one. Your main worry seems to be the resilience of the datastore. Most of the = problems I've seen related to WAN and replication traffic between SQL ser= vers, and to the way the SQL server are installed. Inherently, you are go= ing to come up with a different set of challenges with your setup. I think there may be some clear advantages to you of waiting for Citrix P= resentation Server 3, as this has some new features that you will want to= consider when you design the farm(s), and the datastore sort of quesions= that you're asking will be quite relevant. My next step would be to read Brian Madden's book (which came through the= post this morning - horray!) and work out what options and limitations t= here are with Metaframe XP as it stands. One of the things I think I'd ne= ed to brush up on first is Zones, as I think they will be very relevant, = but I can't for the life in me remember what you need to use them for. I = also think that the number of farms and datastores you need will depend o= n a lot of factors, BUT a single farm may well be easier to manage. Again= , I'd have a lot of reading to do before I'd actually commit to recommend= ing that. Regards, Jeremy Thomas -----Original Message----- From: Lilley, Brian [mailto:brian.lilley@xxxxxxxx] Sent: vrijdag 23 april 2004 13:08 To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Re: global or multi regional citrix farms Hi Jeremy, Thanks for your response. I have tried to direct the corporate strategy = down a mainframe centric view. There, unfortunately, is no opportunity for datacentre consolidation due to the spread of the user population. Its initial driver was to provide a remote access solution for partners a= nd customers. As with most corporates over the past few years, the technolo= gy has spread and is now seen as a serious computing platform. The shift in thinking hasn't quite happened yet, but is certainly moving in that direc= tion. The Citrix access suite is not seen as a desktop replacement. There is a = 70/30 split between published apps and desktops, respectively. And in some cas= es a mix of the two, i.e. a published desktop running applications via ica cl= ient published by a further Citrix server. How fragile is the Data Store? Would you trust it for a global farm? How= many people out there have global farms? Is the moon made of cheese? best regards, Brian -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Thomas, Jeremy Sent: 22 April 2004 08:48 To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: global or multi regional citrix farms Brian, You say Consolidation. Are you going to consider datacentre consolidation= =3D as well? I gather if they're upgrading from 1.8, it implies a major project to rep= =3D lace all their current Citrix servers with new ones, new OS, etc, so it's= =3D an opportunity to do some serious consolidation as well (though it depen= =3D ds what applications they run), reduce the number of datacentres, increas= =3D e security, improve manageability, reduce costs, etc. Citrix =3D3D access and access =3D3D Citrix. So Citrix would position its= elf =3D as the platform through which all users access all corporate data. Are the citrix servers considered part of the office infrastructure (like= =3D desktop replacements) of part of the application (like single published = =3D application per farm). Also, what is the roadmap of the company? Where ar= =3D e they going to go with datacentre management, desktops, etc. over the ne= =3D xt 2-3 years? IMO, there is no right way to design a farm unless you have spoken to the= =3D CIO first and got a good idea of where the company is taking it's IT inf= =3D rastructure, so to consider answering the question correctly, we'd need t= =3D o know this first. Then we can talk technical. Regards, Jeremy Thomas -----Original Message----- From: Lilley, Brian [mailto:brian.lilley@xxxxxxxx] Sent: dinsdag 20 april 2004 20:22 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 C= =3D itrix farms to give me the benefit of your experience, Brian.. Jim et al... you= =3D 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 fa= =3D rm. 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 maintai= =3D n the integrity and availability of the Datastore. The client are looking at O= =3D racle on Sun kit for the Datastore. Despite their expertise on high availabili= =3D ty 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 far= =3D m split approx. equally across some 10 countries? Are farm failover solutions available? Thanks in advance... 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