[Yong Ping]

Dear John and David,

Thanks you once again for the promptly replied and sharing on information.

Here is my answer to your question

1. Have you checked you have the latest Solaris patches and Cloverleaf kernel updates?

[YANTO] Yes both are running with latest update for cloverleaf and kernel patches.

2. Just for further clarification.  Is this only happening when you first start up the process or if you stop and restart the connection also?

[YANTO] The slowness is only happening during startup the thread.

3. Is your disk storage on a detached raid array?  Between the smat files/log files and raima database if there is a hardware problem between the server and raid, that could be a potential culprit.

[YANTO] We are using SAN Storage – and it is the similiar SAN storage that we are using now to running our QDX/Cloverleaf on Wintel Servers.  

4. When you say installed it locally what do you mean?

[YANTO] We installed QDX/Cloverleaf on local drive instead – under local storage, we tried to eliminate the possibility or potential SAN storage resource contention problem.  It is proven that it is not relate to SAN storage.

Our team would be walking thru with the hardware vendor again to make sure that we have look thru all the parameter or potential resource contention indicator.

[Yong Ping]

Dear John and Rob,

Thanks for the information first at all. In fact, we have tried the tail -f on the process log, nothing abnormal and significant noticed.

We did tried out with the IP and DNS name, the differences is around 19 seconds slowness if we used DNS instead. Anyway, we are using iP address.

As part to isolate the problem, we also installed QDX/Cloverleaf locally but same slowness is encountered with TCP/IP protocol threads

We are running out of ideas to resolve or workaround this slowness and we even sought assistance from our partner whom had tested this and he has no ideas the causes else well.

Do you have any other things that we need to take note.  🙁

[Yong Ping]

Thanks and Noted on the VMware and QDX/Cloverleaf certified list.

Is there any other things (side affected) of having QDX/Cloverleaf on VMWare i.e. performances, security and etc. ?.  I read some article on VMWare, and knowing that software/hardware compatibility and security were the main concerned.

[Yong Ping]

Thank you so much for those ideas.  

By the way, anyone experience using Microsoft virtualisation before.  I am thinking to leverage this to have the active/active model.

[Author]

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