How-to safely change from LSI Logic SAS into VMware Paravirtual (on boot disk)

The most safe way is to create a small (dumb) 1GB virtual disk with controller using the PVSCSI driver. Like this when the system boots up the driver is recognized by the OS and installed.
Steps:
01. Add a small, thin provisioned disk to the VM – 1GB in size is sufficient.
02. Choose a 1:0 SCSI node (as on the image below).
03. Then select the newly added SCSI adapter and click the change type button to select VMware paravirtual
04. By then you’ll see that the OS finds and installs the adapter….. Note that the VM is still running as it hasn’t been rebooted yet.
05. Now you can gracefully shut down the VM to make changes. Go to the edit settings dialog and delete the 1Gb disk you have added in step 1. Validate the changes by clicking the OK button, and go back to the edit settings dialog for the VM > choose the SCSI adapter for the SCSI controller 0 (the boot disk), click the change type button and select the VMware Paravirtual.
06. After booting the VM you’ll see a dialog that a new driver was installed (again), and that a reboot is necessary. Reboot the VM …
07. You can check settings of the VM that a paravirtual driver is used (Select VM > Edit settings > SCSI controller). Or you can also check insided the GuestOS that the Paravirtual driver is used (Right click computer > Manage > Device manager > Storage controllers.)
08. Disk may go to offline mode as the SCSI controller type is changed. You may need to make it online.

No comments:

Post a Comment