Bj

Although ER is possible over ISDN I am not sure I would recommend it. You
either need the line continuously available (as you have found) as the
servers communicate with each other every few minutes even if there is
nothing to send, or you request replication to store up the transactions and
send them all in a burst every few (many) minutes.
The problem with the second method is that you need plenty of logical log
space and root space available to allow the replay position to fall behind
the current position. Also if your ISDN line fails to 'come up' correctly
you could very quickly hit DDR lockout and freeze both servers.
I would recommend you investigate a permanent connection of some form
between the two sites.

Keith

-> -----Original Message-----
-> From: Bruxelles.Jette@caramail.com
-> [mailto:Bruxelles.Jette@caramail.com]
-> Sent: Monday, April 26, 2004 11:27 AM
-> To: informix-list@iiug.org
-> Subject: ISDN & Enterprise Replication
->
->
-> Hello,
->
-> I'm doing some tests with Enterprise Replication of INFormix.
->
-> When I defined the replication for UGnd1 and MisterX, I have a big
-> problem.
-> The ISDN Line is never released even if no replication is done. That
-> is not a good idea for the telecom bill :-)
->
-> Here are the commands
->
-> UGnd1 $ cdr define server --init g_UGND
-> To initialize UGnd1
->
-> MisterX $ cdr def ser --init g_MISX --sync g_UGND
-> To add MisterX to the group of replication
->
-> So, at this time, there is no replication defined.
->
-> Is it possible to work with Enterprise Replication between 2 servers
-> linked by ISDN ?
->
-> Regards,
-> Bj
->


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sending to informix-list

Hello Keith,

Thanks for your fast answer.
As I'm pretty sure that for the moment, a permanent connection is impossible
between our two servers. I have
to investigate for your 2nd method "request replication to store up
the transactions and send them all in a
burst every few (many) minutes".
Can you explain me how I can do that ?
I didn't find an option to ask him to do it like that in the command line

cdr def ser --init g_MISX --sync g_UGND

Is it an option in the cdr def ser command line or is it a parameter in
onconfig file ?

Bj

"Simmons, Keith" <keith.simmons@office2office.biz> wrote in message news:<c6jch5$g1j$1@terabinaries.xmission.com>...
> Bj
>
> Although ER is possible over ISDN I am not sure I would recommend it. You
> either need the line continuously available (as you have found) as the
> servers communicate with each other every few minutes even if there is
> nothing to send, or you request replication to store up the transactions and
> send them all in a burst every few (many) minutes.
> The problem with the second method is that you need plenty of logical log
> space and root space available to allow the replay position to fall behind
> the current position. Also if your ISDN line fails to 'come up' correctly
> you could very quickly hit DDR lockout and freeze both servers.
> I would recommend you investigate a permanent connection of some form
> between the two sites.
>
> Keith
>
> -> -----Original Message-----
> -> From: Bruxelles.Jette@caramail.com
> -> [mailto:Bruxelles.Jette@caramail.com]
> -> Sent: Monday, April 26, 2004 11:27 AM
> -> To: informix-list@iiug.org
> -> Subject: ISDN & Enterprise Replication
> ->
> ->
> -> Hello,
> ->
> -> I'm doing some tests with Enterprise Replication of INFormix.
> ->
> -> When I defined the replication for UGnd1 and MisterX, I have a big
> -> problem.
> -> The ISDN Line is never released even if no replication is done. That
> -> is not a good idea for the telecom bill :-)
> ->
> -> Here are the commands
> ->
> -> UGnd1 $ cdr define server --init g_UGND
> -> To initialize UGnd1
> ->
> -> MisterX $ cdr def ser --init g_MISX --sync g_UGND
> -> To add MisterX to the group of replication
> ->
> -> So, at this time, there is no replication defined.
> ->
> -> Is it possible to work with Enterprise Replication between 2 servers
> -> linked by ISDN ?
> ->
> -> Regards,
> -> Bj
> ->
>
>
> ************************************************** ********************************
> This message is sent in strict confidence for the addressee only. It may
> contain legally privileged information. The contents are not to be disclosed
> to anyone other than the addressee. Unauthorised recipients are requested
> to preserve this confidentiality and to advise the sender immediately of any
> error in transmission.
> This footnote also confirms that this email message has been swept for the
> presence of computer viruses, however we cannot guarantee that this message
> is free from such problems.
> ************************************************** ********************************
>
> sending to informix-list