Quick summary of the tool
Clonezilla is an open-source disk imaging and cloning utility that creates exact file-level copies of disks or partitions so systems can be restored after major failures. It performs similar duties to legacy products such as Norton Ghost, but is available at no cost and is geared toward straightforward backup and recovery workflows.
Recommended alternative
- SuperDuper! — a popular commercial cloning app often recommended for users seeking a polished, user-friendly alternative to free utilities.
Editions and scalability
The Live edition of Clonezilla is intended for single-machine backup and restore tasks, making it convenient for one-off or home users. For larger-scale deployments, the Server Edition (SE) is built to handle mass cloning across a network. In practice SE can image dozens of machines at once (commonly cited as 40 terminals) and, when paired with high-performance hardware (example: a 42-node cluster), has achieved multicast restore speeds reported at roughly 8 GB per minute.
Supported file systems
Clonezilla works with a wide variety of file systems, including:
- VMFS5 (VMware ESX)
- HFS+ (macOS)
- NetBSD file systems
- Various Linux file systems (ext variants, XFS, etc.)
- NTFS (Windows)
Security and special restore features
Clonezilla supports AES-256 encryption to protect stored images and secure transfers. It also includes convenient options such as restoring a single image simultaneously to multiple local drives, which can speed up duplication tasks for many identical targets.
Required boot media and hardware
To run Clonezilla you simply need a bootable medium: a CD/DVD drive, a USB stick, PXE network boot capability, or an internal hard drive set up as the boot source. No special peripherals are required beyond whatever the target machines already provide.
Technical
- Windows
- Mac
- Free