nixCraft » ext4

Linux Convert ext3 to ext4 File system

Vivek Gite — Fri, 23 Jan 2009 15:45:57 +0000

Some time ago ext4 was released and available for Linux kernel. ext4 provides some additional benefits and perforce over ext3 file system. You can easily convert ext3 to ext4 file system. The next release of Fedora, 11, will default to the ext4 file system unless serious regressions are seen. In this quick tutorial you will learn about converting ext3 to ext4 file system.

Download of the day: Linux Kernel 2.6.28

Vivek Gite — Sat, 27 Dec 2008 14:36:54 +0000

Linux kernel version 2.6.28 has been released and available for download. The new version includes following stable and new features:

a] ext4 file system - The ext4 filesystem can support volumes with sizes up to 1 exbibyte and files with sizes up to 16 TiB. ext4 removes ext3 64-bit storage limits and adds other performance improvements.

b] Graphics Execution Manager (GEM) - It is a a modern memory manager specialized for use in device drivers for graphics chipsets. It manages graphics memory, controls the execution context and manages the Non-Uniform Memory Access (NUMA) environment on modern graphics chipsets. The "xf86-video-intel" device driver will feature GEM integration.

c] Other features - Stable USB drivers, KVM, bug fixes and other stuff.

=> Download Linux kernel 2.6.28 here. You may also find our kernel compile tutorial useful.

Linux File System Limitations For High Performance Computing

Vivek Gite — Sun, 11 May 2008 21:14:34 +0000

Linux file systems have a number of limitations that make them a poor choice for large and high-performance computing environments.

Comparison: Linux and UNIX ~ ZFS vs XFS vs EXT4 filesystem

Vivek Gite — Thu, 30 Aug 2007 20:51:58 +0000

This is an interesting filesystem comparison. If you are looking to build cheap storage for personal use file system decision is quite important: This is my attempt to cut through the hype and uncertainty to find a storage subsystem that works. I compared XFS and EXT4 under Linux with ZFS under OpenSolaris. Aside from the [...]