A blog for all the virtualization and operating system troubleshooting

1. Install ESXi OS using iso image. -Enable Virtualization in CPU settings 2. Open an SSH session to the ESXi host and run the below command to remove MAC        esxcli system settings advanced set -o /Net/FollowHardwareMac -i 1 3. Remove the system UUID entry from /etc/vmware/esx.conf   sed   -i  "/\/system\/uuid/d"   /etc/vmware/esx.conf 4.M ake the last change persistent run     /sbin/auto-backup.sh 5.Make Snapshot now and use for linked clone ,otherwise you can shutdown ,create template and use for cloning.

Solution: Try ro create again: [root@:~] esxcfg-nas -a -o 10.0.0.1 -s /DND_AUT Error performing operation: Unable to add new NAS, volume with the label DND_AUT already exists Now delete the datastore: [root@:~] esxcfg-nas -d DND_AUT IORM: failed to disable IORM: Unable to get console path for volume, DND_AUT NAS volume DND_AUT deleted. Now add Again: [root@:~] esxcfg-nas -a -o 10.232.206.206 -s /DND_AUT DND_AUT Connecting to NAS volume: DND_AUT_INFRA_SVM1

After setting NFS Max volume to 255 also getting error unable to create that much Datastore issue can be fixed by : Net.TcpipHeapSize to 32 And Set Net.TcpipHeapMax to 1536 These settings  enable  the  maximum  number of  NFS mount s for vSphere ESXi/ESX. Changing  Net.TcpipHeapSize  and/or  Net.TcpipHeapMax  requires a host  reboot  for the changes to take effect.