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IDS Forum

Re: Implementing HDR on Windows 2012 R2 Servers

Posted By: Marcus Haarmann
Date: Wednesday, 21 June 2017, at 2:00 a.m.

In Response To: Implementing HDR on Windows 2012 R2 Servers (MUKESH TANUKU)

Hi,

I suspect your setup does not correctly allow the connection between the machines.
The wrong setting probably is:
port number : 199.166.155.195

The port number needs to be a known service from the system wide services file
(in windows somewhere in system32/drivers/etc)
or a numeric portnumber (such as 1531, 1600 etc.).
You entered an IP Adress here. The IP address for the listener is taken from the hostname
argument. The hostname needs to be resolvable in the hosts file or via DNS.

Check your entries in sqlhosts on both sides.
These should be like:
(in windows edited with setnet32)
Informix Server = hdr_primary
Host Name = winhdr
(winhdr needs to be in the hosts file with the IP address 199.166.155.195 )
Protocol name = (something with sockets, in Linux it is onsoctcp)
Service name = 1601 (e.g. assuming this port is unused in your environment, can be any port number)

Informix Server = hdr_secondary
Host Name = winhdr2
(winhdr2 needs to be in the hosts file with the IP address 199.166.155.196 )
Protocol name = (something with sockets, in Linux it is onsoctcp)
Service name = 1601 (e.g. assuming this port is unused in your environment, can be any port number)

The same entries need to be added for the other server. (the entries have to be present
at both sides, so that each server knows the local settings and the remote settings).

That should work (I dont have any Win Installation here, but the steps are

In the server configuration onconfig, the instance needs to have the winhdr/winhdr2 value
as DBSERVERNAME or alias.
After startup of the DB, the netstat -an command should show a running listener on the port (e.g. 1601).

Hope this helps.

Marcus Haarmann

Von: "MUKESH TANUKU" <mukeshbt1328@gmail.com>
An: "ids" <ids@iiug.org>
Gesendet: Dienstag, 20. Juni 2017 19:01:02
Betreff: Implementing HDR on Windows 2012 R2 Servers [39406]

Hello Friends,
Need A Help on Immediate basis.

We are implementing HDR(High Availability Data Replication) on Windows 2012 R2
Server.

Steps done:

1) Two new Windows 2012 R2 Servers.

IDS 12.10FC8 installed and created the instance manually using Server Instance
Manager.

Server A details :

DBSERVERNAME : hdr_primary

Host Name : winhdr

port number : 199.166.155.195

Server B details :

DBSERVERNAME : hdr_secondary

Host Name : winhdr2

port number : 199.166.155.196

2)We have only one instance with one database in Server A(Primary).
No database in Server B (Secondary).

3)We have made changes required for HDR in ONCONFIG, Sqlhosts file on both
server.
ONCONFIG parameters Server A:

DBSERVERNAME hdr_primary

ROOTPATH C:\IFMXDATA\hdr_primary\rootdbs_dat.000

ROOTSIZE 204800

DRAUTO 0

DRINTERVAL 0

HDR_TXN_SCOPE FULL_SYNC

DRTIMEOUT 30

ONCONFIG parameters Server B:

DBSERVERNAME hdr_primary

ROOTPATH C:\IFMXDATA\hdr_primary\rootdbs_dat.000

ROOTSIZE 204800

DRAUTO 0

DRINTERVAL 0

HDR_TXN_SCOPE FULL_SYNC

DRTIMEOUT 30

Sql hosts at both servers: placed in %INFORMIXDIR%\etc

hdr_secondary onsoctcp winhdr2 hdrsecport

hdr_primary onsoctcp winhdr hdrpriport

host file at both servers : placed in C:\Windows\System32\drivers\etc

199.166.155.195 winhdr

199.166.155.196 winhdr2

winhdr 199.166.155.195

winhdr2 199.166.155.196

host.equvi file @ both servers : placed in C:\Windows\System32\drivers\etc

winhdr informix

winhdr2 informix

services file @ both servers : placed in C:\Windows\System32\drivers\etc

hdrpriport 50005/tcp #hdr_primary

hdrsecport 50005/tcp #hdr_secondary

4)After all configuration setting has done we have take ontape backup at
Server A.
Server A status: On-Line
ontape -s -L 0

5)Moved the L0 backup to server B and restored with ontape. cold restore.
ontape -p
Server B status : Fast Recovery

6) On Server A we had run the below command:

onmode -d primary hdr_secondary

Server A status : On-Line(Prim)

7) On Server B we had run the below command:

onmode -d secondary hdr_primary

Server B status : Fast Recovery(sec).

Till here we have done.

>From here we are facing an issue.

the output at server B of onstat -g dri :

Data Replication at 0000000080CEC030:
Type State Paired server Last DR CKPT (id/pg) Supports Proxy Writes
HDR Secondary off hdr_primary -1 / -1 N

DRINTERVAL 0
DRTIMEOUT 30
DRAUTO 0
DRLOSTFOUND C:\PROGRA~1\IBMINF~1\etc\dr.lostfound
DRIDXAUTO 1
ENCRYPT_HDR 0
Backlog 0
Nothing Sent
Nothing Received
No Pings
Last log page applied(log id,page): 0,0

Issue: Primary and Secondary are not Paired.

Error in Online log is:
Server A
DR: Trying to connect to secondary server = hdr_secondary
DR: Cannot connect to secondary server
DR: Turned off on primary server

Server B
DR: Trying to connect to primary server = hdr_primary
DR: Cannot connect to primary server
DR: Turned off on secondary server

Please help me on this. Im at lot of pressure.

*******************************************************************************
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