Category Archives: VMware

Adding an RDM LUN to the second node in the MSCS cluster fails with the error: Incompatible device backing specified for the device

Posted on April 30, 2023 by Ganadmin

Followed the document https://docs.vmware.com/en/VMware-vSphere/6.5/vsphere-esxi-vcenter-server-651-setup-mscs.pdf to configure the windows cluster but it is getting failed with the error Tried a few VMware KB articles to fix the issue https://kb.vmware.com/s/article/2054897 but all the options got failed and finally the issue got fixed … Continue reading →

Posted in SQL server Failover Cluster, Vcenter Appliance, VMware, Windows | Tagged , , | Leave a comment

vCenter CPU Usage reaches 3000 % in VIMTOP

Posted on December 23, 2022 by Ganadmin

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 →

Posted in vcsa7.0, VMware | Tagged , , | Leave a comment

Datastore with NFS4 slowness issue and Netapp\VMware findings.

Posted on October 20, 2022 by Ganadmin

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 →

Posted in ESX command, ESXi issue, ESXi Patches, VMware | Tagged , , , , | Leave a comment

NFSv3 datastore is much faster than NFSv4

Posted on August 26, 2022 by Ganadmin

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

Posted on May 31, 2022 by Ganadmin

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 →

Posted in Storage, Storage\Backup, VMware | Tagged , , , | Leave a comment

VCSA upgrade stuck in 88%

Posted on February 27, 2022 by Ganadmin

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 →

Posted in VMware | Tagged , , | 2 Comments

VMs running on new MAC-Mini ESXi network issues.

Posted on January 31, 2022 by Ganadmin

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 →

Posted in MacMini, MacMini, VMware | Tagged , | Leave a comment

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

Posted on October 31, 2021 by Ganadmin

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 →

Posted in SRM, VMware | Tagged , , , , | Leave a comment

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

Posted on September 30, 2021 by Ganadmin

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

Posted on August 31, 2021 by Ganadmin

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 →

Posted in Dell, HP, NVIDIA GPU, VMware | Tagged , , | Leave a comment