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What is ZFS?

April 26, 2017ZFs

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What is ZFS?

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ZFS is a new filesystem technology that provides immense capacity(128-bit), provable data integrity, always-consistent on-disk format, self-optimizing performance, and real-time remote replication. ZFS departs from traditional filesystems by eliminating the concept of volumes. Instead, ZFS filesystems share a common storage pool consisting of writeable storage media. Media can be added or removed from the pool as filesystem capacity requirements change. Filesystems dynamically grow and shrink as needed without the need to re-partition underlying storage. ZFS provides a truly consistent on-disk format, but using a copy on write (COW) transaction model. This model ensures that on disk data is never overwritten and all on disk updates are done atomically.