Saturday, June 5, 2010

Linux data recovery :IVC Process Using ‘lvconvert’ Cause Data Loss

There are utilities tools available in the market order to safeguard your precious data, and disk mirroring is the most important among them. It is the process of create an exact copy of all the data stored on your hard disk. You can easily convert your basic hard disk volumes to mirrored volumes, which copies your data to prevent any sort of data loss conditions.

On Linux OS based computer, you can convert your linear logical hard disk volume to the mirror logical volume using ‘lvconvert’ utility. However, you should play safely while converting a Linux volume, as interruption to the process may cause hard disk failure and it could cause data loss. At this point of time, you need to opt for Software to recover linux   .

The Interrupted volume convert is an inbuilt utility of Linux OS that enables you to change a linear Linux hard disk volume to mirror logical volume. This utility can be used to remove or add drive logs from the mirror devices. The command line utility supports various options or parameters to perform specific task. Some of the most common parameters of this utility are as given below:

 1) -m, –mirrors Mirrors- 
This option declares the degree of mirror (replica of data) that you want to create. For instance, ‘-m 1′ converts original Linux volume to mirror logical volume with one linear volume and one copy.

2) corelog-
This parameter tells the tool to switch mirror from employing a continues (disk-based) log to in-memory log. It is possible only if –mirror argument is of same degree of mirror that you are modifying.

3 )  R, –regionsize MirrorLogRegionSize
- It divides the mirror into various divisions of defined size in MB (megabyte).

4)  -s, –snapshot
- It creates the snapshot from an existing Linux volume using another volume with same origin.

5)  -Z, –zero y/n-
This option controls zeroing of first Kilo byte of information in snapshot. The snapshot is not zeroed if volume is set to read-only.

Before you convert the volume, you must backup all your significant information. If the process fails, you can not access Linux volume and stored data and need of data recovery Linux software arises. Linux recovery is best possible using advanced and powerful third-party applications. Linux  recovery applications ensure safe and easy recovery in all data loss situations, with read-only conduct and rich GUI.

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