Category Archives: VMware

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

VCSA6.5 failed to login using AD credentials

One of our vCenter was having issue to login using the AD Credentials . We verified the DNS and the other VC ‘s which connects to the same DNS and AD , found no issues. When we checked the websso.log … Continue reading

Posted in Joining PSC with AD, Platform Services Controller (PSC ), Vcenter Appliance, vCSA 6.0, VCSA6.5, VMware | Tagged , , | Leave a comment

Error while migrating vSphere VMs to Amazon with AWS Server Migration Service

By the help of the link , configured the AWS Server Migration Service and at final stage of the sync it got failed with the error ” Instance failed to boot and establish network connectivity” So we stopped all the … Continue reading

Posted in AWS, AWS Server Migration Service, VMware, 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

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

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

SRM IP customization issue on Redhat VMs

During the DR test we have noticed that few of  the Redhat  5\6\7 VMs were failing with various errors like ( “A general system error occurred: vix error codes = (3016,0)”,”Error – Timed out waiting for VMware Tools after 900 … Continue reading

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Bug in VCSA 6.5 U1\U2 which failed with invalid credentials on AD authentication

On of our vCenter was having issue on connecting the AD users and when users trying to connect the VC , it will fail with the invalid credentials error. I have already mentioned few blogs about AD authentication  issue here … Continue reading

Posted in Joining PSC with AD, Platform Services Controller (PSC ), SSO, Vcenter Appliance, VCSA6.5, VMware | Tagged , , , , | Leave a comment