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Articles about linux data recovery (0-50 of 265)

  • How To Backup In Linux Using Mondoarchive Command
    By: Allen Sood | - Data loss is a horrible reality and it may occur to any system, nevertheless of the hardware and system configuration. You can prevent such situations by creating a reliable and complete backup of your storage media. In Linux operating system, you can use mondoarchive command for this purpose. If you have a complete backup of your data, you can prevent need of Linux Data Recovery in case of any mishap.

    The mondoarchive command backups a subset of all your files, whole file system, ...

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  • Force Leave Operation With Cman_tool Command Cause Data Loss In Linux
    By: Allen Sood | - In Linux operating system-based computer, the Cluster Management tool or Cluster Manager is used to manage the user nodes. This is a command-line or GUI tool, which works on one or multiple cluster nodes. It works together with the cluster management agent. It has various subsystems and CMAN is one of them. To manage the cluster management subsystem CMAN, cman_tool program is used. But in case if you use incorrect command or switch with this utility, all cluster nodes may get affected and data l ...
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  • Further Use Of Damaged File System Cause Serious Data Loss In Linux
    By: mnkstllr | - File system is the most critical component of every computer operating system. It manages all the data on your hard drive. Operating system only interacts with the file system to access data from your hard drive. In some situations, this complex data structure gets damaged and all of your data stored on the hard drive become inaccessible. In Linux computer, you can check and repair minor file system errors using fsck. If this tool can not repair the damage, it alerts you unrepairable problems. S ...
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  • Reconfiguring Scm May Lead To Data Loss In Linux
    By: mnkstllr | - In Linux operating system-based computer, it is quite easy to discover all running system services and shut the unwanted services down. This is possible through SCM (Service Control Manager), which serves purpose of starting, creating, removing and stopping service on Linux system. It works as a single administration point for the Linux controlled nodes. The CMS (Central Manager Server) finds entry of local host and system name in /etc/hosts files and some related functions. In some cases, it fa ...
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  • How To Fix "no Root File System Defined" Error In Linux?
    By: mnkstllr | - In Linux operating system, root file system is a file system, which is contained on the hard drive volume on which root directory is located. Linux kernel require the root file system to be mounted on startup. All other Linux file system are mounted on root file system. In some situations, this file system gets damaged due to virus infection and improper system shutdown like situations. At this point, your system can not boot up and all your valuable data become inaccessible and you come across ...
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  • Damaged Udev Device Manager Leads To Critical Data Loss In Linux
    By: mnkstllr | - Kernel is a core component of Linux operating system, which works as an interface between the application and actual data processing performed at hardware level. It is responsible for managing all of the system resources. Kernel uses a device manager to make its functions easier. For example, Linux 2.6 kernel series uses udev. Basically udev manages the device nodes in root directory. It also handles /dev directory and all of the user space actions while removing/adding devices. In case if you u ...
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  • Interrupted Process Of Gparted Cause Superblock Corruption And Data Loss In Linux
    By: mnkstllr | - In Linux operating system, GPT (GParted) is a useful tool that facilitates you to create, resize, move, delete, copy and check the hard drive partitions/volumes. It also copy file system on newly created partitions. It is helpful to create space to install new operating system, copying data stored on hard drive, mirroring one volume with another and recognizing disk usage. In some cases, using this tool may become problematic. It might damaged Linux superblock and lead to critical situations of ...
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  • Direct Alteration Of Unionfs Branch May Cause Data Loss In Linux
    By: Allen Sood | - For easy and effective management of your valuable data in Linux, it could be useful to use related but varying set of files on separate memory locations. You, however, might prefer to see the relevant files together. In such cases, unioning the file system allows you to keep these files separate physically, but merge them logically in single view. This is possible through UnionFS command.

    The union file system is a combination of two or more file systems to create illusion of sing ...

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  • Use Of Mkfs Command On Raid-enabled Linux Computer May Cause Data Loss
    By: mnkstllr | - RAID (Redundant Array or Independent Disks) devices are the virtual devices that are created from more than one real block devices. It enables multiple devices (generally hard drive) to be combined in single device to hold single file system. In Linux, MD (Multiple Devices) device driver is used to implement the software RAID devices. For this purpose, mdadm is used. It is a program, which could be used for creating, monitoring and managing MD devices. In some situations, you might come across R ...
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  • Lost Clusters, Invalid Files Or Directories And Cross Linked Files Cause Data Loss In Linux
    By: mnkstllr | - Linux file systems like Ext4, Ext3, Ext2 and ReiserFS are used to organize files and directories on your hard drive. The working of all these Linux files systems are same as all other computer file systems. But if you encounter some odd symptoms such as lost clusters, cross linked files, or the invalid directories and files, they indicates file system corruption and renders all of your critical data inaccessible from hard drive. It results into critical data loss and need Linux Data Recovery to ...
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  • Root Inode Corruption Cause Data Loss In Linux
    By: mnkstllr | - In Linux and other Unix-like operating system, you can detect and repair hard drive errors using fsck command. This command runs in 5 phases. In the first phase, it checks data blocks and their size while in second phase file and directory pathnames are checked. In the remaining three phases, the connectivity, file reference counts and the cylinder groups are examined respectively. If in the second phase, fsck disk checking process fails, you might come across critical disk corruption situations ...
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  • Resolving "ext2-fs: Group Descriptors Corrupted" Error In Linux
    By: mnkstllr | - In Linux operating system, file system stores all of the critical information about files located on the hard drive. Without file system, operating system can not locate files stored on hard drive and thus they can not be accessed.

    This is the top priority for an operating system to ensure that file system is intact. It should not be corrupted for proper accessing of data. Otherwise, all of your critical data on the hard drive would become inaccessible and you come across data loss ...

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  • Linux Data Recovery When Partition Table Gets Damaged
    By: mnkstllr | - Modern computers allows you to install two or more operating systems on single hardware. This configuration is known as Multi-boot (generally called dual-boot). You can use features of different operating systems and can work independently on them. In some situations, where you use dual-boot configuration with Linux operating system, you may face serious issues of system metadata structure corruption that leads to serious data loss. At this point, it become essential to go for Linux Data Recover ...
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  • Rectifying "superblock Corrupted, Run With -b 32768" Error In Linux
    By: mnkstllr | - In Linux operating system, you can re-size the hard drive volumes with preservation of your critical data stored on the volume, using Gparted utility. It can also be used for creating, moving and removing hard drive volumes. In some situations, resizing the hard drive volume might cause serious problems of data loss. Unsuccessful operation of disk resizing might render the disk volumes and stored data inaccessible.

    In these cases, you are required to opt for effective and powerful ...

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  • Interrupted Fsck Operation Causes Data Loss In Linux
    By: mnkstllr | - In Linux operating system, fsck is a useful utility that helps you to check file system integrity and fix the errors. It is helpful particularly in case of file system corruption, dirty system shutdown and operating system related issues. When improper system shutdown happens, fsck runs when you reboot the system and check file system integrity. But if fsck process gets terminated due to improper system shutdown or power failure, you might come across serious data loss issues. In such circumstan ...
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  • Improper Mounting Of File System Cause Failure And Data Loss In Linux
    By: mnkstllr | - In Linux operating system, you should arrange to mount root file system as read-only to start with at boot time. If required then remount the file system in read/write mode. Most of the Linux distributions follow this process. If your operating system does not do this, you must read the documentation and then find out how to set your file system to follow this process. You are required to specify -n option to mount the file system so that it does not try to update the /etc/mtab directory, otherw ...
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  • Resolving "mounting Unchecked File System" Error In Linux
    By: mnkstllr | - Dirty system shutdown or improper system shutdown is a common problem with computer system. It affects every computer operating system including Linux. The improper system shutdown generally occurs due to system crash or power outages. This behavior generally affects the computer file system and results into serious data loss situations. File system corruption renders all of your valuable data inaccessible and require Linux Data Recovery to retrieve lost, missing and inaccessible data from affec ...
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  • Rectifying "superblock Corrupted, Run With -b 32768" Error In Linux
    By: mnkstllr | - In Linux operating system, you can re-size the hard drive volumes with preservation of your critical data stored on the volume, using Gparted utility. It can also be used for creating, moving and removing hard drive volumes. In some situations, resizing the hard drive volume might cause serious problems of data loss. Unsuccessful operation of disk resizing might render the disk volumes and stored data inaccessible. In these cases, you are required to opt for effective and powerful Linux Data Rec ...
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  • Converting Linux File System From Ext3 To Ext4
    By: mnkstllr | - The Ext4 (Fourth Extended File System) is an advanced and effective journaling file system that is developed as successor of Ext3 file system. It provides high performance and removes 64-bit storage limits of earlier file systems. The file system supports backward compatibility with the Ext3 and Ext2 file systems. Thus it is possible to mount Ext2 and Ext3 file system as Ext4. To gain benefit of these advanced features, you need to migrate file system from Ext3 to Ext4. Before migrating the file ...
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  • Fsck Errors Cause Data Loss In Linux
    By: mnkstllr | - File system corruption is a common issue with all computer operating systems, including Linux. It might cause several drastic issues and need operating system reinstallation. To correct such problems, Linux provide fsck tool. It is a command line utility to check and fix file system problems.

    But in some situations, the fsck can not help you to repair the file system and give errors on completion. At this point, the file system remains damaged and cause serious data loss scenarios. ...

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  • Delayed Allocation In Ext4 File System Might Cause Data Loss In Linux
    By: jonny defh | - The Ext4 (Fourth Extended File System) is an advanced journaling file system, which is developed as successor of the Ext3 file system. This file system was designed as a series of the backward compatible extensions for removing 64-bit data storage limits and other such performance advancements to Ext3.

    This advanced Linux file system promises advanced performance and data integrity, along with less restrictions and of course a step in right way. But in some situations, this reliabl ...

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  • How To Troubleshoot Linux Error ' Cannot Execute "/etc/init.d/boot'?
    By: Allen Sood | - Linux boot process is inclusive of several steps. The last steps of this boot procedure in init process, identified by id '1'. When starting the system, init starts system processes, which have been defined in

    /etc/initab file. Init starts several instances of getty that wait for console logins. However, if the process experiences any fault or interruption, it fails and the boot process doesn't proceed further. Also, you cannot access the data that is stored on your hard disk. You ...

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  • How To Resolve Unexpected Inconsistency Error In Linux?
    By: jonny defh | - Linux is considered to be a reliable operating system due to the data security features it offers. But due to reasons like unexpected shutdown, a Linux filesystem might get corrupt and prevent you from accessing the data. When you turn on a Linux system, fsck runs if finds any errors on the disk. However, if boot-time fsck cannot perform the desired repair task, it returns errors. To cope up with such problems, you might need to reinstall the operating system. You should use your backup to r ...
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  • Resolving Ext3 Error: No Journal On Filesystem
    By: mnkstllr | - Ext3 is a journaled file system and maintains a journal file to prevent instances of metadata corruption due to unexpected power outage. Due to its wide testing base and relative simplicity, the file system is considered to be safer than its counterparts. But it is not completely immune to crashes. At times, when using a Ext3 formatted drive, you might receive errors suggesting that system doesn't find any journal on the file system. As a solution, you might be compelled to reinstall the syste ...
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  • Inaccessible Linux Partitions After Using Mksf.ext3
    By: Allen Sood | - mksf.ext3 is a Linux command that allows you to create a Linux file system (ext3), generally in a hard disk partition. When executing the command, you need to specify the device name the file system should reside on. The command creates the file system with ext3 journal. If you execute this command on a system attached with multiple hard drives (for example, in RAID), it is recommended to specify the device name carefully. Failing to do so might result into data loss instances, such as inaccessi ...
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  • Bad File Descriptor Error In Linux
    By: Allen Sood | - In a Linux system, files, blocks, directories, sockets and other items are referred by corresponding file descriptors. If your system is reporting errors that the file descriptor is bad, one of possible causes is that file system is corrupt and thus, you require restoring from backup. But if backup is not valid enough to restore complete information, you need to use advanced Data Recovery Linux applications.

    As an instance, you might encounter the below error message with your Linu ...

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  • Resolving Linux Error ' Reiserfs Superblock Cannot Be Found'
    By: jonny defh | - Linux file system is described by a special metadata structure, called Superblock. It defines different attributes, such as size of inode table, file system type, total size of file system, mount status, list of free data blocks and others. Linux maintains multiple copies of superblock to prevent unmountable file system state due to superblock corruption. You can restore the system using these alternate superblocks. If you fail to do so, you will require to restore from the most recent data back ...
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  • "'˜can't Find A Reiserfs File System' Linux Error
    By: Allen Sood | - Linux superblock is responsible for holding general information about the file system. An Ext3 file system is different from a ReiserFS file system because they have dissimilar file system type, size and mount status defined in their corresponding superblocks. Among other information, superblock also contains information about other file system metadata structures. This information is used by file system manager to maintain the integrity of file system. Just in case if file system gets corrupted ...
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  • Solving Linux Boot Error: 'not Init Found'
    By: mnkstllr | - All the system processes that execute on a Linux-based system root from init. While booting, it is the last step performed that is identified by process id '1'. Linux references /etc/ inittab file to start these system processes. Init also controls the processes and sequence while shutting down the system.


    While booting the system if you find errors that system cannot boot further as it could not find init, odds are that the initrd file is corrupted. In critical situation ...

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  • "'˜cannot Open Root Device' Linux Boot Error
    By: Allen Sood | - Root device refers to the device from which a Linux system boots from. While booting if you are getting errors that system cannot access or open the root device, you might need to install a fresh copy of operating system. Thus, you are always suggested to maintain a good data backup of all valuable information you have stored. In such situations, you probably loose data and if backup fails to restore, you will need to use Linux Data Recovery software to scan and restore the data.

    ...

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  • No Root File System Defined"' Error In Linux
    By: jonny defh | - When you start your Linux computer, you might encounter the following error message during the boot process:

    "No root file system defined. Please correct this from the partitioning menu"

    Though it suggests you to correct this from partition menu, but you do not find any option on this screen.

    After this error message, the bootup process gets halted and you need to reboot your system. Every time you go for a cold reboot, you experience the same behavior.

    Th ...

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  • Grub Error 15 In Linux
    By: Allen Sood | - When you start a Linux system, BIOS first select the boot device and load the boot sector. Further, it looks to load the kernel image, after which the setup code runs to execute the Kernel. If your system is prompting that it cant find the kernel image, the system will fail to boot. One of the probable reasons for this behavior is boot partition corruption. It leads to data inaccessibility and to restore data completely, it is crucial that you have valid data backup. Thus you are always ...
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  • "'˜file System With Errors, Check Forced' Linux Error And Recovery
    By: jonny defh | - Linux supports various file systems like Ext2, Ext3 and ReiserFS. The latter two file systems support file system journaling, hence are less prone to file system corruption (as compared to Ext2) due to unexpected shutdown. Besides, unexpected system shutdown, other causes that could corrupt these file systems are improper use of terminal commands, insufficient disk resources, user errors etc. While such situations, you cannot access your stored data and to restore it, you should use your recent ...
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  • Geom Error In Linux
    By: jonny defh | - When you boot your Linux system, GRUB (GRand Unified Bootloader) proceeds in few stages. Your system boots successfully if all these phases complete without any errors. But sometimes, you observe that Linux system halts and an error message is printed at stage 1. In such situations, you fail to access stored data and need to restore lost information from backup. However, if data backup is damaged, incomplete, or is not available, Linux Data Recovery applications can be used as recovery solutions ...
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  • "'˜error Informing The Kernel About Modifications....' Error Installing Fedora
    By: Allen Sood | - Fedora is an operating system that is built on top of Linux kernel. It is a RPM (RPM Package Manager) based operating system and is available in different variants, starting from Fedora Core 1 to Fedora 11. On occasion, you observe partition issues while installing or upgrading Fedora and the installation fails with an error message. It is likely that to resolve the issue, you need to repartition the hard drive, which causes data loss as a result. Hence, to restore lost information, use your rec ...
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  • "'˜grub Error 17 : Cannot Mount Selected Partition' Linux Error And Recovery
    By: Allen Sood | - GRUB (GRand Unified Bootloader) is the standard boot loader used by Linux systems that allows you to implement multibooting. Also known as GNU GRUB, it loads boot images and recognizes file systems. You can also view or alter partition settings, re-map the disk order on temporarily basis and perform similar tasks. GRUB errors generally indicate that your hard drive is suffering from errors. To completely restore lost information in such situations, use your recent data backup. If backup fails, i ...
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  • Resolving Hardware Error In Linux Operating System
    By: jonny defh | - The booting process of the Linux operating system can halt due to various software (file system damage, metadata structure corruption, virus infection, improper system shutdown etc.) and hardware (bad connection, inappropriate electrical connections etc.) issues. In such non-booting situations, the data saved in the hard drive becomes inaccessible.

    To completely and systematically access of data, you need to restore it from the latest backup. But in case of no backup availability ...

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  • Couldn't Mount"'¦"' Error Message While Mounting Linux Operating System
    By: Allen Sood | - Superblock is the most significant component of a Linux volume that restrains critical information about files and folders in file systems as ext2, ext3 and more. It enables us to mount and access the file systems. Superblock corruption primarily occurs due to metadata structure damage, file system corruption, unexpected system shutdown, malicious software like virus and more.

    In most cases of superblock corruption, the volume becomes unmountable and the data becomes inaccessible ...

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  • "'˜superblock Does Not Describe Correct File System' Linux Error
    By: jonny defh | - For Linux file systems, Superblock plays a vital role. It defines the file system itself. Linux uses this metadata structure to hold its file system information like file system type, size, mount status and also metadata information about other file system structures. If superblock is found to be corrupt, file system cant be mounted. This causes data loss and hence needs Linux Data Recovery as the solution. Superblock defines file system type and if it is corrupt, it may fail to give to ...
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  • "'˜unable To Read Inode Block' Linux Error
    By: Allen Sood | - Linux systems use ext2, ext3 and reiserFS file systems in general. For all these file systems, inode is a significant metadata structure. Inode keeps record of each file or directory on the drive together with of other metadata structures. For accessing any of files, directories or file system objects, system takes reference from its inode. Inode keeps information like file size, file permissions, file creation and modification details, Access Control List, file type and all such information tha ...
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  • Linux: Mount Fails And Can't Read Mounted File Systems Table
    By: jonny defh | - fstab and mtab are two important files, found on Linux systems.

    fstab: The file is also sometimes referred as file systems table or /etc/fstab. It is meant to list all the available disk partitions and disks. It also includes information about how these disks and partitions are integrated into file system of Linux. Its corruption sometimes leads to Linux Data Recovery needs.

    mtab: Also known as mounted file systems table, it enlists mounted file syst ...

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  • Reiserfs Partition Corruption And Linux Recovery
    By: jonny defh | - ReiserFS is an advanced and journaled file system used in Linux. When ReiserFS was first introduced, it offered major capabilities that were not available in existing Linux file system and its later developments enhanced its popularity. Where features like Tail packing and journaling somehow contributes to avoid Linux Data Recovery issues, they also make it a good performance file system. So, ReiserFS partitions offer maximum performance in data retrieval by offering for fast and safe data acces ...
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  • /var Directory Corruption And Linux Data Recovery
    By: Allen Sood | - Linux file systems follow directory hierarchy system. The topmost directory is known as the root and the other subdirectories constitute to make directory hierarchy. The directory structure is unified and is same for all devices and partitions. Each subdirectory has a specific structure and purpose.

    One of the important subdirectory is /var. This directory holds files which are of variable file storage. This means that its data keeps changing while the system is in use. This dire ...

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  • Linux Data Loss Due To Corruption To /etc/fstab And /etc/mtab Directories
    By: Allen Sood | - The /etc/fstab and /etc/fstab are two most important directories of Linux operating system. Without them, the operating system and boot loader wont be able to find the hard drive volumes or drives. Thus, you wont be able to boot your system.

    The /etc/fstab (contraction of file system table) is a directory of Linux operating system. It is the part of system configuration and lists all the available hard drives, drive volumes and shows how they have to be initialize ...

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  • Linux Data Loss Due To Improper Use Of Tune2fs
    By: Allen Sood | - Tune2fs is a Linux command that is generally used by the system administrators to tune the parameters of Ext2 and Ext3 file systems by regulating different parameters. You need to just specify the device on which the file system resides.

    This command also helps you to verify particular parameter configurations for the file system. There are several options that can be used with this command. Some of them are:

    -c max-mount-counts: Specifies the highest number of mou ...

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  • Linux Data Loss When You Move Active Logical Volume Using Pvmove
    By: Allen Sood | - Pvmove is a command line Linux utility that is used to move allocated PE (Physical Extents) from source physical volume to other physical volumes. You could optionally specify source logical volume, in which the case-only-extents that are used by LV (Logical Volume) would be moved to the free extents on destination physical volume. If the destination physical volume is not specified then normal allocation rules are used.

    If the pvmove is interrupted due to any reason, then you ca ...

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  • File System Corruption Problem In Linux Due To Write Back Cache
    By: jonny defh | - Write Back Cache is a caching technique in which the modifications to the data in cache are not copied to cache source until completely essential. It is implemented on the hard drives to improve write performance. Devices rely on this method to fix slow performance issues because of slower RPM and seek-time.

    With this technique, the hard drive could signal the successful completion of writing process more rapidly than if this had to wait until data was entirely transferred to dis ...

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  • Linux Data Recovery After Installing Fedora Core 5
    By: Allen Sood | - I use dual booting between Linux and Windows on my system. Few days back, I realized that I need to change my Linux distribution due to some performance problems and hence I opted for Fedora Core 5.

    Without feeling the need of knowing the details of safe installation, I proceeded in my own way and this is the one, where I mistook. During the installation, on the page where we have to select the partition and drive, I went for Remove all Partitions on Selected drives and create ...

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  • Backups And Data Recovery In Linux
    By: jonny defh | - Losing data is the weird situation to handle by any of the user, using any of the operating system. Knowing the fact even, some of the users ignore the fact of backup considering the process as the real chore. But realize later when the data recovery need actually arises.

    For the Linux users, the powerful custom backup solutions will make your part of creating the backups quite easy. These solutions would help you to maintain the secure network backups using open source tools and ...

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