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Devices

The logical volume must be properly mounted (i.e. working to a certain extent), otherwise you can't create a copy of it. Hence, if you are taking an image of the system for a later data recovery or for a forensic purpose, it is better to stick to physical disks (unless complex RAIDing is involved).

Volume locking considerations

The "lock" is associated with the volume (logical disk). If a physical disk is being copied, all the volumes it contains have to be locked. In case the physical disk holds a part of a composite volume (e.g. part of the software RAID or a stripe set), the entire composite volume is locked.

There are cases when it is not possible to acquire a volume lock. These include

• Volumes which have an open files or folders on them
• System volume (containing the "WINDOWS" folder)
• Volume containing the page file

If there is a problem locking a volume, Zlon will display a warning message. You then can

• [Retry] Find the program using the volume and close it, then retry locking.
• [Abort] Retreat back one step and select another device.
• [Ignore] Continue without locking. Be advised that the image will be inconsistent and can't be used for backup purposes. However, the result is typically satisfactory for a subsequent data recovery.