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an fsck program that checks for and corrects inconsistencies e2image save critical ext2/ext3/ext4 filesystem metadata to a file e2label change the label on an ext2/ext3/ext4 filesystem e2scrub check a filesystem "online" (i.e. without having to unmount it) in the case where the filesystem is on an LVM LV e2undo
In OS/2 version 1.2 and later, the High Performance File System was designed with extended attributes in mind, but support for them was also retro-fitted on the FAT filesystem of DOS. For compatibility with other operating systems using a FAT partition, OS/2 attributes are stored inside a single file "EA DATA. SF" located in the root directory ...
In Unix and Unix-like systems, including POSIX-conforming systems, each file has a 'mode' containing 9 bit flags controlling read, write and execute permission for each of the file's owner, group and all other users (see File-system permissions §Traditional Unix permissions for more details) plus the setuid and setgid bit flags and a 'sticky' bit flag.
ext4 (fourth extended filesystem) is a journaling file system for Linux, developed as the successor to ext3.. ext4 was initially a series of backward-compatible extensions to ext3, many of them originally developed by Cluster File Systems for the Lustre file system between 2003 and 2006, meant to extend storage limits and add other performance improvements. [4]
Full copy-on-write file systems (such as ZFS and Btrfs) avoid in-place changes to file data by writing out the data in newly allocated blocks, followed by updated metadata that would point to the new data and disown the old, followed by metadata pointing to that, and so on up to the superblock, or the root of the file system hierarchy. This has ...
It has metadata structure inspired by traditional Unix filesystem principles, and was designed by Rémy Card to overcome certain limitations of the MINIX file system. [ 4 ] [ 2 ] It was the first implementation that used the virtual file system (VFS), for which support was added in the Linux kernel in version 0.96c, and it could handle file ...
SMU edged out Alabama for the final at-large spot in the College Football Playoff — meaning just three SEC teams (No. 2 Georgia, No. 5 Texas and No. 9 Tennessee) are in the 12-team field.
The metadata locks are split into separate bits that protect the lookup of the file (file owner and group, permission and mode, and access control list (ACL)), the state of the inode (directory size, directory contents, link count, timestamps), layout (file striping, since Lustre 2.4), and extended attributes (xattrs, since Lustre 2.5). A ...