From IDE disk to SCSI disk in VMware

From IDE to SCSi in 8 steps. VMware supported.

I found out that IDE is trouble in performance and the disk cannot be extended. 

So i searched google and found out that there's a supported way to proceed.

Source VMware: Click me

To convert the IDE disk to SCSI:

1. Locate the datastore path where the virtual machine resides.For example:# cd /vmfs/volumes/<datastore_name>/<vm_name>/
2. From the ESX Service Console, open the primary disk (.vmdk) using the vi editor. 
3. Look for the line:ddb.adapterType = "ide"
4. To change the adapter type to LSI Logic change the line to:
   ddb.adapterType = "lsilogic"
   
   To change the adapter type to Bus Logic change the line to:
   
   ddb.adapterType = "buslogic"
5. Save the file.
6. From VMware Infrastructure/vSphere Client:
   1. Click Edit Settings for the virtual machine.
   2. Select the IDE virtual disk.
   3. Choose to Remove the Disk from the virtual machine.
   4. Click OK.
      
      Caution: Make sure that you do not choose delete from disk.
7. From the Edit Settings menu for this virtual machine:
   1. Click Add > Hard Disk > Use Existing Virtual Disk.
   2. Navigate to the location of the disk and select to add it into the virtual machine.
   3. Choose the same controller as in Step 3 as the adapter type. The SCSI ID should read SCSI 0:0.
8. If a CDROM device exists in the virtual machine it may need to have the IDE channel adjusted from IDE 0:1 to IDE 0:0. If this option is greyed out, remove the CD-ROM from the virtual machine and add it back. This sets it to IDE 0:0.