Well, as the title showing and “Notes page” describe it, here I’ll post what I’m found during my searches or my works and on my learning path.
These Information would be contain notes, tips & tricks, KBs and tools; this list would grow day by day, so you can check this page again for updates.

VMware ESX/ESXi/vCenter:
1. Adding an ESX host to the vCenter inventory fails with the error: vmodl.fault.HostCommunication [type: KB | link]
2. vCenter alarms are not triggered if another alarm on the same object is disabled [type: KB | link]
3. Microsoft NLB not working properly in Unicast Mode [type: KB | link]
4. Upgrading ESX 4.0 to ESX 4.1 [type: KB | link]
5. Resignaturing VMFS3 volumes from the command line [type: KB | link]
6. Identifying issues with and setting up name resolution on ESX Server [type: KB | link]
7. TCP and UDP Ports required to access vCenter Server, ESX hosts, and other network components [type: KB | link]
8. Processors and guest operating systems that support VMware Fault Tolerance [type: KB | link]
9. Sysprep file locations and versions [type: KB | link]
10. UFS Explorer Standard Access [type: tools | link]
11. Location of log files for VMware products [type: KB | link]
12. Do not use both ESX and ESXi hosts in clusters with fault tolerant virtual machines [type: KB | link]
13. Cloning and converting virtual machine disks with vmkfstools [type: KB | link]
14. Restarting the Management agents on an ESX or ESXi Server [type: KB | link]
15. Analyzing physical machines using VMware Guided Consolidation fails [type: KB | link]
16. Cloning and converting virtual machine disks with vmkfstools [type: KB | link]
17. vCenter Service Status displays an error for com.vmware.converter [type: KB | link]
18. After upgrading to ESXi 4.1, syslog continuously reports the error [type: KB | link]
19. After upgrading to ESX/ESXi 4.1, default pathing policy for LUNs [type: KB | link]
20. Reloading a vmx file without removing the Virtual machine from inventory [type: KB | link]
21. Software iSCSI LUNs disappear after rebooting or upgrading the ESX/ESXi host [ type: KB | link]
22. Not enough licenses installed [type: KB | link]
23. Attempting to add a host to VirtualCenter produces a license error [type: KB | link]
24. ESX 3.x Server and vCenter 2.x Editions [type: KB | link]
25. vMotion fails with the error: Migration to host <> failed with error [type: KB | link]

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