TREX distributed system installation & configuration issue

[#1]

I'm currently installing a distributed TREX solution for our CRM systems following topology of servers:

TREX Hosts(decentralized storage option)

host1 - Master name server #1

host2 - Slave

installed TREX on both the hosts.

Trying to add Slave(host2) to the Master (host1) but I am getting error "communication error: EOF reached!,"

i have tried vice versa( host1 to host2) but no luck .

checked host files all look ok.

./install.sh --action=install --sid=SID --instance=00 --password=XXXXXX --type=DEFAULT

found strange thing after installation the /sapmnt is not updated with SID. The installation directory automatically goes to /usr/sap/SID. I tried crating softlinks but still the remains there.

I tried to force the directory to /sapmnt using --target=/sapmnt but I am still getting communication error.

./install.sh --action=install --sid=SID --instance=00 --password=XXXXXX --type=DEFAULT --target=/sapmnt

I can run TREXAdmin tool but unable to add slave host.

any one encountered the same problem?

please see attachment.

[ravikanamala]

would you be able to check via screensharing?

[ravikanamala]

HI Sriram

I am following the same document.

we are not looking for DR host now but we will plan that later stage.

Initially we want two hosts.

host1 - Master name server #1

host2 - Slave

we have same existing setup and it is working fine. we want to migrate to new HW and ended up with communication error as mentioned above.

I have a ticket open for SAP waiting for SAP's response too but i would really appreciate if I receive any solution from here too.

[S_Sriram]

Hi Ravi

1. Before that have you read the Trex multiple host installations? refer the guide

https://help.sap.com/doc/b1ee8fa789de4e479c5e2e32b70bc7ae/7/en-US/TREX71_INST_MULTIPLE.pdf

2. initially we tried the same option but we failed, in place of that we installed two different Trex instances in an ERP system, using the python script we have created the primary and DR site hosts. are you looking like this?

Regards

SS

[S_Sriram]

Hi Ravi

Refer to the SAP note 2533166 for the following error message while adding the host

Regards

SS

[ravikanamala]

Hi SS

Thanks for your quick response.

I tried that note also but didn't work, I am using version83 but the note is for rev74.