msg.hbacommon.outofspace

I am getting an error msg on this server

msg.hbacommon.outofspace:There is no more space for virtual disk server_1-000008.vmdk. You may be able to continue this session by freeing disk space on the relevant partition, and clicking Retry

After investigating , the datastore got filled up coz of the snapshots of the virtual machine.
so we decided to delete it and After deleting the snap shot , the system doesn't boot up and was searching for the vmdk file which no longer exist.the failed.

After looking at the below found that the snapshots grow with its size on datastore with the changes that it has undergone

The server died and we got to point the vmx file to the old base disk .

Later found that from forums that

1.we can power down the VM and so that we will get get free space equal to the amount of RAM allocated to the VM. You can them do a storage vmotion to another Datastore with large enough space.

2. After powered down the VM, do a manual snapshot, then chose to "Delete All" snapshots. That cleared everything up for me.

3. Just clone VM to another storage using VMware Converter.