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VMware ESX 6 (SAP, SLES) unstable - how's your experience?

Hi all

I'd like to get your opinion on recent VMware ESXi versions when running SAP applications.

We recently upgraded our ESXi version from 5.5 to 6 and run into serious troubles since then.

First of all (I hope you haven't experienced so) we ran into the problem escribed inĀ  2229228 - VMware vSphere 6.0: possible data corruption which not only affected SAP Systems, but also ActiveDirectory, Exchange, Sharepoint and so on (that time was horrible, I can tell you!).

After an update to the latest ESXi Patch (which solved the problem mentioned above) we experience sudden crashes of our SAP Systems (around 25) running on SLES 11.3/MaxDB/Oracle (error has something to do with /bin/vmx). These crashes occur at random times (not only during backup).

VMware support told us the following:

This is a known issue for us that concerns SLES on ESXi 6.0 and ESXi 5.5 U3. Generally, issue may not be visible for this guest OS, but SAP is more vulnerable because of its specifics.

Issue is now resolved and bugfix will be included in further releases.

The only workaround is to use vmotion or restart this vm every week.

(If anyone from VMware reads this: VMware Support Request 15784794810)

However, the date this bugfix will be available will be "the first part of 2016"... which means up to 9 months of "workaround" and reboot of productive SAP systems.

I cannot imagine we're the only ones with these kind of massive problems.

How do you handle such situations?

What is your experience?

Do you have a solution for the latter problem?



Former Member

In the meantime VMware provides a Hot Patch for this issue on vSphere 5.5 Update 3 and 6.0.

For details how to proceed, check VMware KB 2137310 (

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