Category Archives: VMware

vCenter CPU Usage reaches 3000 % in VIMTOP

The issue got started after upgrading the vCenter Server 7.0 Update 3h | 13 SEP 2022 | ISO Build 20395099. We have noticed the CPU of the VC went very high and couldn’t login to the VC. We tried a few options like … Continue reading

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Datastore with NFS4 slowness issue and Netapp\VMware findings.

Already mentioned in my previous blog here about the NFS 4 slowness issue compared to the NFS3 and we captured the packets and worked with the Netapp, below are the findings of our test when we tried ls -lahR | … Continue reading

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NFSv3 datastore is much faster than NFSv4

Recently we have noticed in a few datastore the search operation is taking more time than expected and in our testing, it was identified that compare to NFSv4, NFSv3 results are better. Our testing is to first list files from … Continue reading

Posted in ESX command, ESXi issue, ESXi Patches, logs, VCSA6.7, vcsa7.0, VCSA8.0, VMware | Tagged , , , , | Leave a comment

NFS 4.1 datastores might become inaccessible after failover or failback operations of storage arrays

NFS 4.1 datastores might become inaccessible after failover or failback operations of storage arrays. When storage array failover or failback operations take place, NFS 4.1 datastores fall into an All-Paths-Down (APD) state. However, after the operations are complete, the datastores … Continue reading

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VCSA upgrade stuck in 88%

VCSA 7.0 U3b upgrade stuck in 88% Resolution Vami page was stuck at 88% for more than a hour. Removed the update_config file and restarted the VAMI, but update was not done. Downloaded the fp.iso patch and patched the VCSA … Continue reading

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VMs running on new MAC-Mini ESXi network issues.

We have a new MAC MINI 2019\2020 and old model (2018 ) running with ESXi 6.7U3 and noticed on new mac-mini VMs ( MAC\Windows\Linux) having issues connecting the network and downloading the files. The only difference is the network card … Continue reading

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IP customization is falling on RHEL 5 and 6 VM with SRM 8.3.1

Below is the issue we have faced after upgrading the SRM to 8.3.1 IP customization is falling on RHEL 5 and 6 VM with SRM 8.3.1 IP customization previous worked on these RHEL versions with SRM 6.5 IP customization work with RHEL 7 VMs … Continue reading

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Bug in vCenter running AMD EPYC Zen3 (Milan)AMD and EPYC 7713.

Recently we moved to AMD EPYC 7713 64 with Dell R6525 and noticed ESXi hosts showing 100% CPU and it is keep on intermittently fluctuating . When we checked the performance in ESXTOP it was very low and in our … Continue reading

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Guest OS Hung for GPU Enabled VMs

We are having NVIDIATesla V100-PCIE-32GB running SYS-1029GQ-TRT and for past few months we are facing the issue on VMs getting hung and it went to black screen and only option is to reboot the VM. Below are the details of … Continue reading

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Root cause for the VPXD Crash issue

Previous post I have explained about the vCenter and VPXD crash issue , after lot of research VMware support confirmed that the issue is because of the  Likewise failure that is fixed and pushed in 6.7 U3M, since VMware patches … Continue reading

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