Does IDrive support incremental backups for VMware virtual machines?
Yes, after the initial full backup subsequent backups with IDrive are incremental. To perform incremental backup, enable Change Block Tracking (CBT).
To enable CBT,
Power off the virtual machine.
Right-click the virtual machine and click 'Edit Settings'.
Click the 'Options' tab.
Click 'General' under the 'Advanced' section, and then click 'Configuration Parameters'. The Configuration Parameters dialog box appears.
Click 'Add Row'.
Add the ctkEnabled parameter, and then set its value to true.
Click 'Add Row', add scsi0:0.ctkEnabled, and set its value to true.
Note: scsi0:0 in scsi0:0.ctkEnabled indicates the SCSI device assigned to the hard disk, which is added to the virtual machine. Every hard disk added to the virtual machine is given a SCSI device similar to scsi0:0, scsi0:1, or scsi 1:1. The CBT option is either enabled or disabled on each disk.
Can I upload the backed up VMDK file using 'vsphere client/web interface' to attach to VWware ESXi?
Yes, you can upload the backed up VMDK file to ESXi using vsphere client. However, you need to convert the monolithic sparse VMDK file to thin disk after uploading, using 'vmkfstools', to attach to VMware.
Run the following command to convert the monolithic sparse vmdk file: vmkfstools - i "Source vmdk path" "destination vmdk path after conversion" For example:
vmkfstools -i /vmfs/volumes/datastore1/centos/centos.vmdk" "/vmfs/volumes/datastore1/centos/centosafterconvert.vmdk"