On Wed, 2003-07-02 at 01:01, Prakash Modak wrote:
> Hi all,
>
> I want install LTSP servers in organisation,
> i got 250 comps, can any body tell me how many servers
> i shuld install and how i can synchronise data betw'n
> them??
It's tough to answer your question without knowing what your computers
will be used for. 250 people browsing the web and reading email
shouldn't need more than one server; if they need OpenOffice, too, you
might or might not need a second or third server. Without more info, I
would set up one LTSP server and see how it goes.
If you're sure you will need more than one server, the best way to keep
data synchronized is to have a single dedicated NFS server and have all
LTSP servers mount /home from it.
Connect this server via a separate network to your LTSP servers. Only
the LTSP servers should be able to connect (or even ping) the NFS
server.
client 1----|
|
client 2----|
|
... |
|
client 250--| |-- NFS server
| |
|--- LTSP server 1 ---|
|--- LTSP server 2 ---|
Balancing the load between multiple servers is difficult. You can
dedicate servers to clients (ie, clients 1...125 get server 1, 126-250
get server 2), or to tasks (ie, one LTSP server, an a second OpenOffice
server), or you can try to balance the load at login time (have the
clients connect to the least-busy server). The best way might be to set
up LTSP and OpenMosix to run your servers in a cluster, since Mosix will
balance your loads for you.
Hope this helps,
-David
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