Conference iosg::all-in-1_v30

    Steve,
    
    
    >Question : Is there some sort of load balancing algorithm instituted 
    >when I'm running more than one server?  Would I still tune each 
    >additionl server as if it were a single dedicated server needing to 
    >handle the excessive client connection load?
    
    Nope there is no load balancing done during an OafcOpenCabinetW call
    which is what is used to make a client connection.  The system manager
    is responsible for the load balance. The way it would be done is this:
    
    The FCS is assigned DECnet object 73, this is used by all servers by
    default and all clients to connect to by default. It is easily over
    ridden for just this purpose.  It is a two step process:
    
    1) Start the server up (as obj 73) then change the object number
    via the manage servers interface. This will change the object number
    field in the server configuration file. Then restart the server and
    it will be running under object number whatever you put it as.
    
    2) For clients that you want to connect to the non-73 server, define
    the logical OAFC$SRV_OBJ. What this does is during the open cabinet
    the FCS checks for the existance of this logical. If it is there we
    use it as the DECnet object number of the server to connect to. If the
    logical is not there (default case) we connect to 73.
    the logical should be defined as "$ def OAFC$SRV_OBJ 130" for a server
    running under DECnet obj 130.
    
    The system manager will be responsible for balancing what clients go to
    which server.
    
    >Also, the ALL-IN-1 File Cabinet Server Overview, in discussing DNS 
    >vs. DECnet Phase IV advantages/disadvantages, makes the following 
    >statement of page 2-4:
    >
    >"The partition object is likely to be stored within serveral
    >subdirectories of the name space..."
    >
    >Does this mean that I can merely replicate a list of servers that 
    >service a partition in different locations in the namespace, or 
    >could it also mean that a "drawer index" could also be replicated in 
    >different locations in the namespace (thus allowing continued access 
    >to remote drawer objects even if the original "partition location" 
    >becomes temporarily unavailable?
    
    I am not sure of your question, but here is what I think the answer is.
    When you create an object in DNS (like a partition) the object will
    automatically be replicated to several places throughout the namespace.
    This allows faster distributed access and removes the single point of
    failure.  Nothing about the drawers is stored in DNS, all that is 
    in DNS is the partition name, CTS and a list of servers that can access
    the partition.
    
    That answer your queston??
    
    --Bob
    

    Bob,
    
    I recall reading in an earlier note (can't remember if it was in this
    conferece or A1INFO) that the use of the OAFC$SRV_OBJ was possible but
    unsupported.
    
    I don't think this logical is documented (but I could be wrong as I
    have not checked the documentation exaustivly), but is it supported,
    and can we suggest it's use to customers who have large systems?
    
    Terry

    
    Yup, it should be documented someplace. I remember reading it but
    can't find it now.
    
    --Bob
    

Hello and greetings,

Customer wants to set a up an FCS specifically for TeamLinks users, as their
access is slower than IOS users. - how can the logical be set so that one 
group accesses a specific serever, and the other group the other server. There 
are about 3000 IOS users, and about 20 TL users. TL user numbers will increase, 
a lot.

Customer does not want to set up separate logins for these groups, nor are do
they fit neatly into departmental categories.

Perhaps it is possible to have sylogin do some interrogation on the connection
type? TL users have proxies, IOS users do not?

Has anyone does this or similar "segregation of the users"?

Any hints?

Thanks & regards,

Chele    

>Perhaps it is possible to have sylogin do some interrogation on the connection
>type? TL users have proxies, IOS users do not?

  In SYLOGIN.COM, check if the process holds the *LOCAL identifier and
  define the OAFC$SRV_OBJ to your new object number. All VT users will
  then use the new server, and all TeamLinks users will use the default
  73 server since they don't hold the *LOCAL.

  Changing the object for the VT users is much easier than changing
  the object in OFFICE.INI on every PC.

  Please post your implementation when it works, since many customers
  will need to do something similar.

  Best regards,
  Allan

>> check if the process holds the *LOCAL identifier

Unfortunately, if I SET HOST I don't get LOCAL, even if I'm on a VT; I get
REMOTE instead :-(

Maybe SYLOGIN could check whether the login is INTERACTIVE, has a terminal
associated with it, etc?

Scott