What is ZFS?

Nowadays next-generation file systems offering more functionality than regular file systems, become popular among computer users. One of these file systems is Zettabyte File System (ZFS) which was developed in 2006 by Sun Microsystems. This file system was designed to operate with large amounts of data by combining the concepts of a typical file system and a logical volume manager.

ZFS can provide high speed access to the user data, control data integrity and minimize data fragmentation. This allows to allocate or free up disk space dynamically. In addition, ZFS uses a variable block size and parallel read/write operations, which increases storage performance.

From the data recovery point of view, the ZFS technology differs from the typical RAID technique in a number of aspects. It does not have such parameters as block size, or specific pattern of data location. All that you can rely on is the large number of metadata containing records of the location of user data scattered across the ZFS pool devices.

How to recover data from ZFS

In data recovery, there are quite a few tools which support ZFS recovery. One of them is ReclaiMe Pro software (www.ReclaiMe-Pro.com) which is capable of recovering data from damaged ZFS volumes in fully automatic mode.

ReclaiMe Pro software works with single, stripe, mirror, and RAIDZ, RAIDZ2, RAIDz3 (missing disks are allowed) layouts.

All you need is to connect all available disks from a ZFS pool and run the software.

You can find more information about ZFS recovery on this page.

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