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IDS Forum

Implementing HDR on Windows 2012 R2 Servers

Posted By: MUKESH TANUKU
Date: Tuesday, 20 June 2017, at 1:01 p.m.

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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