Linux and Mac File Systems Article Example | Topics and Well Written Essays - 250 words

Linux and Mac File Systems - Article Example lso highly scalable and support Access Control lists as compared to Ext3fs which support a basic form of ACL or HFS+ which moved NTFS style of ACL recently. Moreover, NTFS is more robust than Ext3fs in that Ext3fs is based on Ext2fs and hence carries some of the problem from the older file system. Also, Ext3fs has an impact on performance due to its journaling features. An inode (index node) is data structure in the file system that stores all the information about a file except its name. The information includes access permissions, the owner of the file, file type and size of the file. The Linux file system (ext3fs) employs this approach for indexing small files. For larger files, Linux allows the use of indirect blocks. The indirect blocks extend the file size that can be stored to slightly more than 4 MB. On the other hand, NTFS has entries in the master file table (MFT) instead of inodes. The MFT contains the information required to retrieve a file from NTFS. The MFT have a unique identifier, i.e., FILE_RECORD_SEGMENT_HEADER which is a file header used to identify a file from other files. HFS+ also does not have inodes, but it emulate its behavior. In Mac OS, the equivalent of the inode in Linux is referred to as indirect node file. The indirect node file is stored in the metadata directory, which exist in the root directory. The indirect node file stores file’s content properties like the owner ID and the group ID. Though, Mac OS is UNIX based, its file system does not implement inode like Linux but a similar indexing is implemented. In contrast, the inode is a file system feature found in UNIX based operating system like Linux but not found in Window Operating system. The MFT, indirect node file, and inode are similar in that they store file’s properties and allow easy retrieval of the files. The NTFS and Mac OS inode structure are more superior to the Linux one, and thus they improve performance and efficiency. Linux adoption both by desktop users and