Category Archives: ESXi issue

Steps to blacklist the problematic DCs in VMware VCSA 6.7U3

We had a DNS issue in one of the DC running active directory integrated  DNS service and it caused our vCenter to fail to connect the domain in AD so we have changed the  DNS to the IPs which is … Continue reading

Posted in ESXi issue, Vcenter Appliance, vCSA 6.0, VCSA6.5, VCSA6.7, VMware | Tagged , , , | Leave a comment

vCenter VPXD crashes because of high memory.

We have a vcenter environment with around  500 ESXi hosts running on multiple clusters and for the past several weeks we had the issue of Vcetner down because of VPXD crash and the service will be in stopped status. VMware … Continue reading

Posted in ESXi issue, Vcenter Appliance, vCSA 6.0, VCSA6.5, VMware | Tagged , , , | Leave a comment

Bug in network introspection driver (vnetflt.sys) VMtools 11265 (11.0.1)

Recently we have upgraded the VMtools version from 10.305\10.346 to 11265 – 11.0.1 and we noticed few VMs went to hung status and noticed the below alert in windows VMs. vmware.log: 2020-02-07T12:50:58.182Z| vcpu-0| I125: Guest: vsep: AUDIT: VFileSocketMgrCloseSocket : Mux … Continue reading

Posted in ESXi issue, NSX 6.1.4, Vcenter Appliance, vCSA 6.0, VCSA6.5, VMs, VMtools issue, VMware, Vnic, vShield, Windows | Tagged , , | Leave a comment

Solution for the SMB1 AD Authentication issue – ESXi 6.5U3 update

As per my previous blog on SMB1 AD authentication issue in 6.5u1 , VMware communicated that it will be fixed  after the 6.7 U2 update but it looks like in the recent 6.5 U3 update it got fixed.In the release … Continue reading

Posted in ESX command, ESXi issue, ESXi Patches, VC6.0 Appliance Installation Issue, vCSA 6.0, VCSA6.5, VMware | Tagged , | Leave a comment

VCSA Shell is disabled.

One of our VC is down because of the space issue and not able to login to the Shell. Followed the below steps to fix the same. Accessed the VCSA on Grub mode Found “/” and /storage/log partitions were full. … Continue reading

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EVC Mode on cluster for encryption

In our POC for our new application , noticed the significant differences on the performance on two different environment which is running on same hardware model.Even though the network layer is different from the environment A and B  the issue … Continue reading

Posted in Dell, ESXi issue, HP, Vcenter Appliance, vCSA 6.0, VCSA6.5, VMware | Tagged , , | Leave a comment

6.5u1 SMB1 issue with causes the AD authentication issue.

We had the AD authentication issue from the ESXi 6.5 U1 and tried various method mentioned in my previous blog but it got failed with all the options. Below is the error while trying to connect the host from the domainjoin-cl … Continue reading

Posted in ESXi issue, Vcenter Appliance, vCSA 6.0, VCSA6.5, VMware | Tagged , , , , , , | 1 Comment

Tips to edit the .vmdk (descriptor file)

We are in the situation to change the scsi adapter detail in the disk vmdk (descriptor file) and the count of the VM list is very high so used the below steps to change it on the multiples VMs. Log-in … Continue reading

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Bug in some vSAN code that Logic Monitoring is polling

As per the below link  if we are using the Logic Monitoring for VSphere environment, It looks like due to a change in the server-side API behavior of VMware 6.5, could trigger host instability, or possibly a crash of an ESXi 6.5 host. https://communities.logicmonitor.com/topic/1945-fyi-lm-can-trigger-esxi-65-hostd-to-crash/?tab=comments#comment-4839Continue reading

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Useful links about Meltdown and Spectre

Everyone is  working on to fix the Meltdown and Spectre so just thought of sharing few links which will help to handle the issue efficiently . HP Today HP has released update for System ROM and we can find below link to … Continue reading

Posted in Dell, ESXi issue, ESXi Patches, ESXi Tools, Firmware upgrade, HP, Trend Micro Deep Security, VCSA6.5, VMware, Windows | Tagged , , | Leave a comment