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ZFS stands for “Zettabyte File System” and is an advanced file system developed by Sun Microsystems (now Oracle). It is a robust, scalable and fault-tolerant file system that enables efficient storage, management and protection of data.
ZFS uses an innovative concept called “copy-on-write”, in which all write operations on the file system are written to a new block instead of overwriting the original block. This means that the original block remains unchanged and can be restored later if required. This helps to prevent data corruption and data loss.
ZFS also uses a technology called “storage pooling”, where multiple hard disks are combined into a logical volume to achieve higher capacity and performance. The storage space within a storage pool is allocated dynamically, which optimizes the use of storage space.
Another important function of ZFS is “checksum validation”, where a checksum is created for each read operation to ensure that the data is read correctly. If an error is detected, the data is automatically restored from a redundancy source.
ZFS also supports a number of advanced features such as snapshots, deduplication, compression and encryption, which help ensure that data can be stored efficiently and securely.
Overall, ZFS is a powerful file system that provides a robust, scalable and fault-tolerant storage solution. It is used by many companies and organizations around the world and is a popular choice for applications that require reliable and efficient storage of data.
