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linux ext3 日志文件系统
【相关文章:[DOWNLOAD] Red Hat E】exploring the ext3 filesystem 【扩展阅读:键盘飞梭驱动】
【扩展信息:常用计算机端口解释】the linux ext3 filesystem bill von hagen friday, april 5, 2002 09:53:55 amintroduction to the ext3 filesystem
as a sophisticated, powerful, and free operating system, linux provides a fertile territory for developing sophisticated system and user-level software. some of the most exciting developments in recent linux kernels are new, high-performance techniques for managing how the data on linux systems is stored, allocated, and updated on disk. one of the most interesting of these new mechanisms is the ext3 filesystem, which has been integrated into the linux kernel since version 2.4.16 and is already available as a default filesystem type on linux distributions from red hat and suse.
the ext3 filesystem is a journaling filesystem that is 100% compatible with all of the utilities created for creating, managing, and fine-tuning the ext2 filesystem, which is the default filesystem used by linux systems for the last few years. before delving into the differences between the ext2 and ext3 filesystems, a quick refresher on storage and filesystem terminology is in order.
some background on linux filesystems
since the date in the distant past when computer systems first began to read and write from magnetic storage media, guaranteeing the consistency of the files and (later) directories on that media has been a thorn in the paw of system administrators and designers everywhere. at the system level, all of the data on a computer exists as data blocks on some storage device, organized using special on-disk data structures into partitions (logical subsets of storage media) which are themselves organized into files, directories, and unallocated (free) space.
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