VMkernel advanced - option effective vs next restart value

Hi, we have a few ESX host we need to update the segment VMFS3 to 128 MB size. Apparently, this change requires a restart to take effect. We went ahead, and then set the value to 128 MB on multiple ESX hosts. Now the problem is, unfortunately, we cannot determine which ESX servers were restarted after the change of setting.

So, how do I know the current value of the MaxHeapSizeMB? As far as I know, the following command displays the new value (which is really not effective on a unrebooted host). I could be wrong.

#. / esxcfg-advcfg-g/VMFS3/MaxHeapSizeMB
Value of MaxHeapSizeMB is 128

Looking for help to determine which ESX hosts must be restarted...

You are right, the timestamp of the initrd corresponds to the time of availability of the host, and of course, there are more easy methods to check the times of availability (for example, with the VI client or simply with the command "uptime").

To be sure that you can extract the esx.conf from the initrd*.img file (it is, indeed, the copy used the last time) and check if it includes changes made.

Instructions on how to do this are included in this KB article (it is intended to restore a corrupted configuration esx.conf "last known good" stored in the initrd, but it will also help).

I'm not aware of any log file that contains the changes you made. There could be something in the vmkernel.log or the file that contains the latest boot messages. We are on ESXi only, so I do not have any ESX host available to verify this right now. In ESXi, is /var/log/sysboot.log, which contains the last boot messages.

Andreas

- Blog of experience front of VMware

Tags: VMware

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