Persistent:
By default all the virtual disks are persistent - I.e Changes are written directly on the disk . And these disks are included in the snapshots .
When you edit a virtual machine settings you will see an option called Independent Mode. This means the disks are independent of the Snapshots .
There are two options available
1. Persistent
2. Non Persistent
Persistent Disks - The disks are excluded from the snapshot and all the write options are permanent.
Non - Persistent - All the write options are temp. Changes are discarded when the virtual machine is re-set or powered off . If you restart the system , the data will still be available on the disk.Changes will be discarded only when the system is RESET or POWERED OFF.
VMware Documentation Link :
http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.vm_admin.doc_50%2FGUID-8B6174E6-36A8-42DA-ACF7-0DA4D8C5B084.html
By default all the virtual disks are persistent - I.e Changes are written directly on the disk . And these disks are included in the snapshots .
When you edit a virtual machine settings you will see an option called Independent Mode. This means the disks are independent of the Snapshots .
There are two options available
1. Persistent
2. Non Persistent
Persistent Disks - The disks are excluded from the snapshot and all the write options are permanent.
Non - Persistent - All the write options are temp. Changes are discarded when the virtual machine is re-set or powered off . If you restart the system , the data will still be available on the disk.Changes will be discarded only when the system is RESET or POWERED OFF.
VMware Documentation Link :
http://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vsphere.vm_admin.doc_50%2FGUID-8B6174E6-36A8-42DA-ACF7-0DA4D8C5B084.html
We have VM and changed the disk type to Non - Persistent,
ReplyDeleteTo test we created few folders,
shtudown the server and powered on, but still the folders were there.
VM did not go to orginal state.
How can i get the orginal state after making changes to server?
As this helps in testing softwares.
To answer to your question , the data will be deleted / discarded , only when the virtual machine is reset or powered Off. In case of reboot the changes are not discarded.
Delete