The Linux system is now a very popular operating system. In Linux, everything is a file, because there are many operations that can be completed by the file system, and the file system can meet the normal use of the user, then common in Linux What are the file systems? Let me introduce you.
In general, in Linux, the system can support many more file systems than Windows systems, reaching dozens of types, so Linux system is also a very good operating system. Common file system introduction in Linux:
1. Ext3: It is a log file system, which can avoid the loss of file system information under abnormal system conditions, and can repair data inconsistencies and errors. At the same time, when the hard disk capacity is large, the required repair time will also Increase, there is no guarantee that 100% of the data will not be lost. Record the details of each write action of the entire disk in advance to avoid tracking down the interrupted part when an exception occurs and try to repair it.
2. Ext4: It is the last improved version. It is the default file management system in the RHEL 6 system. It supports a storage capacity of 1EB, and can also have an unlimited number of subdirectories. In addition, the file system can allocate block blocks in batches, thereby greatly Improve read and write efficiency.
3. XFS: It is a high-performance log file system, and it is the default file management system in RHEL 7. The advantage is that it can quickly recover files that may be damaged in the event of an accident. The powerful log function only requires low cost and Storage performance, maximum support storage capacity 18EB, almost meet a variety of needs.