However, Hetman RAID Recovery can analyze its metadata to identify the proper structure of RAID-z and then rebuilds the damaged RAID on the fly, and does it automatically. ZFS was developed with reliability in mind, which is achieved by using various features such as copy-on-write, redundant metadata, journaling and others.īecause of the complicated structure of this file system, conventional data recovery tools are useless when it comes to restoring information from RAID-z arrays. Due to the dynamic nature of this file system, its data can only be recovered if the metadata is not damaged. The information about the size of each stripe is written to metadata. It uses dynamic striping instead of fixed-width stripes. The data distribution mechanism in RAID-z is similar to the conventional RAID 5, but with slight differences. ZFS is a open-source file system which is mostly used in FreeNAS storage systems and other solutions based on Free BSD. How to Install and Configure TrueNAS Core □ ZFS: a brief description
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