[THIN] Re: global or multi regional citrix farms
- From: "Thomas, Jeremy" <Jeremy.Thomas@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Fri, 23 Apr 2004 14:21:45 +0200
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...
B
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