Go back to fronty page View most popular entries View latest additions Submit tutorials to UnixTutorials.info
UnixTutorials logo

Search results for Filesystem snapshots with unionfs

Ubuntu

Recover deleted files from NTFS filesystem from Ubuntu Linux - Ntfsundelete

Post date: October 10, 2010, 05:10 Category: Security Views: 5444 Comments
Tutorial quote: If you have accidentally deleted files from your hard drive, don't panic! You can easily recover deleted files whether you are using a Windows PC (NTFS) or Linux OS. You can undelete files with almost guaranteed success. The most important thing is to act as soon as you realize that the files are lost.
Debian

Debian RAID 1/5 system installer

Post date: May 28, 2005, 22:05 Category: Installing Views: 3713 Comments
Tutorial quote: Instructions for installing a very clean Debian GNU/Linux system that boots from RAID 1, and has RAID 1 or RAID 5 root and data filesystems.

The examples assume two identical harddrives, sda and sdb, on which after a small boot partition, 1 GB is used for swap, 25 GB is used for the root filesystem and everything else is for a big "data" partition that will hold non-system stuff.
OpenSUSE

FSlint - Utility to clean up your File System in openSUSE

Post date: October 30, 2008, 08:10 Category: Miscellaneous Views: 4249 Comments
Tutorial quote: FSlint is a simple yet very easy to use utility to find and clean various forms of lint on a filesystem. i.e., unwanted or problematic cruft in your files or file names. For example, one form of lint it finds is duplicate files. FSlint operates in both GUI and Command Line mode and the GUI is very straight forward to use especially there isn’t much of hidden menu options
Debian

Software RAID and Encrypted Filesystem Benchmarks

Post date: January 25, 2006, 23:01 Category: Benchmarks Views: 5534 Comments
Tutorial quote: Both tests use bonnie++ to test the disks.

- Files Test: create, destroy, and stat 20,000 files in sequential and random order. File sizes are random between 0K and 15k. All files are created in a single directory.
- IO Test: read, write, rewrite, and seek in three 1GB size files.
- Load: all tests are starting with 0 cpu load. Load was then measured every 2 seconds for the duration of the test and averaged over all measurements.
OpenSUSE

Krusader - Advanced Twinpanel File Manager in openSUSE

Post date: October 10, 2008, 22:10 Category: Desktop Views: 4021 Comments
Tutorial quote: Krusader is an advanced twin panel (commander style) file manager for KDE and other desktops in the *nix world, similar to Midnight or Total Commander. It provides all the file management features you could possibly want with features like extensive archive handling, mounted filesystem support, FTP, advanced search module, an internal viewer/editor, directory synchronisation, file content comparisons, powerful batch renaming and much much more
Ubuntu

How to Increase ext3 and ReiserFS filesystems Performance in Linux

Post date: May 14, 2007, 00:05 Category: System Views: 5425 Comments
Tutorial quote: This tutorial explains how to increase ext3 and ReiserFS filesystems Performance in Linux.The ext3 or third extended filesystem is a journalled file system that is commonly used by the Linux operating system. It is the default file system for many popular Linux distributions
OpenSUSE

Linux Kernel Magic SysRq keys in openSUSE for crash recovery

Post date: September 28, 2008, 17:09 Category: System Views: 4086 Comments
Tutorial quote: The Linux Kernel offers you something that allows you to recover your system from a crash or at the least lets you to perform a proper shutdown using the Magic SysRq Keys. The magic SysRq key is a select key combination in the Linux kernel which allows the user to perform various low level commands regardless of the system’s state using the SysRq key. It is often used to recover from freezes, or to reboot a computer without corrupting the filesystem.
Debian

dmcrypt

Post date: January 25, 2006, 22:01 Category: Security Views: 5042 Comments
Tutorial quote: Device-mapper is a new infrastructure in the Linux 2.6 kernel that provides a generic way to create virtual layers of block devices that can do different things on top of real block devices like striping, concatenation, mirroring, snapshotting, etc... The device-mapper is used by the LVM2 and EVMS 2.x tools. dm-crypt is such a device-mapper target that provides transparent encryption of block devices using the new Linux 2.6 cryptoapi. Writes to this device will be encrypted and reads decrypted. You can mount your filesystem on it as usual. But without the key you can't access your data. It does basically the same as cryptoloop only that it's a much cleaner code and better suits the need of a block device and has a more flexible configuration interface. The on-disk format is also compatible.
OSX

Recover a dead hard drive using dd

Post date: October 23, 2006, 03:10 Category: System Views: 16488 Comments
Tutorial quote: The Unix program dd is a disk copying util that you can use at the command line in order to make a disk image. It makes a bit-by-bit copy of the drive it's copying, caring nothing about filesystem type, files, or anything else. It's a great way to workaround the need for Norton Ghost.

Normally, in order to make a disk image, the disk you're copying from has to be able to spin up and talk -- in other words, it's OK to make a copy if the disk is healthy. But what happens when your disk is becoming a doorstop? As long as it continues to spin, even with physical damage on the drive, dd and Mac OS X will get you out of the fire.
Ubuntu

Striping Across Four Storage Nodes With GlusterFS On Ubuntu 9.10

Post date: January 28, 2010, 13:01 Category: Installing Views: 3144 Comments
Tutorial quote: This tutorial shows how to do data striping across four single storage servers (running Ubuntu 9.10) with GlusterFS. The client system (Ubuntu 9.10 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.
Web-based applications and online marketing solutions - LumoLink