Question Re: Sybase replication server configuration/installation in Technology Q&A

Sybase replication server configuration/installation

suresh712 — Fri, 11 Dec 2015 05:25:45 GMT

Hi All,

We are planning for replication server from PRD to new server.

Can somebody help me by answering below questions.

What are the prerequisites for replication server installation?
Do we need to install replication server in both machines?
Do we need separate machine for replication server?

Environment:

DB Version: ASE 16

SAP: ECC6 EHP7

DB Size: 65GB

Regards

Suresh

Re: Sybase replication server configuration/installation

Former Member — Fri, 11 Dec 2015 06:22:18 GMT

Hello Suresh,

Please check the following document.

http://froebe.net/blog/wp-content/uploads/2013/09/Replication-Server-15.7.1-SP100-ASE-to-ASE-Replication-Quick-Start-Gui…

I hope this helps you.

Regards

Anand

Re: Sybase replication server configuration/installation

hans-juergen_schwindke — Fri, 11 Dec 2015 08:35:22 GMT

Hi,

in your case (Replication Server for SAP applications) more information can be found using the keyword "hadr".

There is a good presentation giving an overview:

http://scn.sap.com/docs/DOC-68125

and here is the users guide:

http://scn.sap.com/docs/DOC-65921

Regarding your question (I'm familiar with the Linux setup):

1. Sizing for the Replication Server depends on the load of the system, especially the data volume on the primary site. If you replicate around 25 GB per hour, your require 4 CPUs and 8 GB memory. If your workload is 50% of it, you can reduce the CPUs and memory also by 50%.

I'm not aware of any special prerequisites. Of course all hosts must know each other; maybe they are located in different data centers in order cover the failure of one data center.

The installation and setup is done with SWPM (aka SAPinst).

2. The HADR setup for SAP applications requires two Replication Servers

3. You can install Replication Server on ASE hosts as well but it is recommended to use separate hosts.

Best regards,

Juergen

Re: Sybase replication server configuration/installation

crisnormand — Fri, 11 Dec 2015 08:41:05 GMT

Hello,

The above link doesn't apply in a Business Suite environment.

The information you are looking for is HADR with Replication Server in a Business Suite environment.

The main information about it is documented in SAP Note 1891560 - Disaster Recovery Setup with SAP Sybase Replication Server

To access the official documentation to install Replication Server for HADR in a Business Suite environment:

http://service.sap.com/sltoolset -> Software Logistics Toolset 1.0-> Section Documentation -> Software Provisioning Manager -> Installing Systems Based on NW 7.1 or Higher -> SAP Adaptive Server Enterprise -> Select your OS and stack
See Chapter 7 Disaster Recovery Setup with SAP Replication Server

Also, in this SCN space we have also published the last HADR User's Guide ( ) and an additional topology supported ( )

Additionnally, all documentation about HADR is documented in KBA 2175528 - FAQ HADR: Frequently Asked Questions for HADR with SAP Replication Server certified for Business Suite

However, regarding your specific environment, note that HADR is still not supported with ASE 16.

So you will have to check for alternatives, detailed in SAP Note 1650511 - SYB: High Availability Offerings with SAP Adaptive Server Enterprise

HTH

Regards,

Cris

Re: Sybase replication server configuration/installation

victoria_normand — Fri, 11 Dec 2015 08:41:08 GMT

Hi Suresh,

Besides the interesting links provided, please take into account that there is a version restriction actually: there is yet no SRS support for SAP systems based on SAP ASE 16.0.

You may refer to SAP Note 1891560 - Disaster Recovery Setup with SAP Replication Server

Best regards,
Victoria.

Re: Sybase replication server configuration/installation

suresh712 — Mon, 14 Dec 2015 09:43:07 GMT

Hi Maria,

Thank you for detailed information.

Could you please provide the correct media for installing Replication Server on ECC6 EHP 7. (As per guides ASE replication server support till 15.7 patch136 only so I have downloaded 133 )

Thank you in advance.

Regards

Suresh

Re: Sybase replication server configuration/installation

crisnormand — Tue, 15 Dec 2015 15:39:55 GMT

Hello,

It looks like you have downloaded SAP ASE media, nor SAP Replication Server media.

They're not the same product

You have to search Replication Server product from Marketplace. Ensure you are downloading a version compatible with your ASE version (see compatibility matrix in SAP Note 1891560 - Disaster Recovery Setup with SAP Sybase Replication Server), and with the mention 'Certified for Bus.Suite'.

HTH

Regards,

Cris