Month: January 2019

Resolving JBD no valid journal superblock found Error in Linux

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Ext3 (Third Extended File System) is a journaling and advanced file system, used for the Linux operating system. If your system faces improper system shutdown or system crash, file system journaling empowers endues it to recover without losing data. Ext3 file system contains a number of significant data structures and Superblock is one of them. It stores critical data about file system, such as type of file system, size of file system, file system mount status, and information about all other hard drive data structures. Corruption to superblock lead to data loss and need Linux Data Recovery to be sorted out.

In order to avoid critical situations, in case of superblock corruption, Linux maintains duplicate copies of superblock. You can use the redundant copy for mounting the file system, after locating it. In some cases, you may encounter the below error message while trying to mount the Ext3 file system volume:

-JBD: no valid journal superblock found-

Furthermore, you encounters one more error message that indicates problems with your system wile loading the file system journal. Both these errors terminate the hard drive mount operation and make the disk inaccessible.

JBD layer (Journaling Block Device) is an API (Application Programing Interface), used by the journaling code of Ext3 file system. This is proposed to express implementation of the Ext3 file system journal.

The problem may be corrupted journal. After corruption, journal can not be loaded. If you try to replay the damaged journal, file system data structures, including Superblock, may get overwritten. It generally occurs as Ext3 file system does not support the checksumming during write process to journal and thus finally need Data Recovery Linux.

In such critical circumstances, you can try fixing the hard drive through fsck command-line utility. If the problem persists and file system is no longer mountable, Linux Recovery is required to handle the situation.

Recovery is potential through the most advanced and effective applications, known as Ext3 Recovery software. They carry out in-depth scan of the entire storage media to search, locate, and recover lost data in all logical data loss situations.

The tools have simple graphical user interface to provide easy to use. They do not alter original data from the hard drive as they have read-only and non-destructive conduct.

Stellar Phoenix Linux Data Recovery is the most effective solution for all your Linux data loss situations. It recovers lost data from Ext4, Ext3, Ext2, FAT12, FAT16, and FAT32 file system volumes. The software works well with all major distributions of Linux operating system, including Red Hat, SUSE, Fedora, Debian, and Ubuntu.

Thin Client, Diskless Client, Embedded Linux Thin Client,thin Computer, Thin Client Pc, Hp Thin Clie

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Thin Client has the following benefits which the users can derive by installing our range of Thin Client solutions in their business environment. Thin Client is a diskless pc technology that has lots of benefits.

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Advent of technology has brought in lots of advantages in the daily life. The most integral part today for any business is computer, and with proper utilization of Thin Client Technology in the core, the benefits derived out of the computing technology is immense and leads to lot of cost saving. Thin Client has the following benefits which the users can derive by installing our range of Thin Client solutions in their business environment. Thin Client is a diskless pc technology that has lots of benefits.

Additional Cost Saving:

No disk drives (Hard-disks, CDROMs and Floppies) required on Thin Clients or Diskless PC. Also, the memory requirements on PCs are very minimal. This saves at least additional Rs. 10 to 12000 on each PCs. Also all the moving parts are eliminated giving you much more uptime and performance enhancement.

Recycle Obsolete or Low-configuration PCs

Minimum Hardware requirements being very low, i.e. P-I with 32MB RAM and Digital Monitor, you can profitably use any obsolete PCs by just installing PCI based Thin Client Device such as Smart Station device (PCI) as applicable inside it and with the same ease and performance as a regular P-IV desktop.

Centralized Control and Management

All User, Network, Resource and Application managements is required to be done only on the central server. This not only reduces unnecessary system administration but also gives you a tighter control over your organizations computing environment and user and access policy implementation.

Application Sharing

All applications like MS Office, Internet and Email Applications, Oracle, SQL, and engineering design and even ERP systems like SAP/R3 can be run from the diskless Smart Station PCs at the same as that of the server.

Resource Sharing

All resources available on the network like CDROMs, FDDs, HDDs, Printers, etc can be shared among all the users, if required. These resources could be available on the server or on the diskless Thin Client PCs.

Virus Protection

Floppies, third party software and Internet are the major sources of virus infection. If the windows 2000 / 2003 server has the proper and updated anti-virus system installed, and all other PCs on your LAN can be Thin Clients, the problem of the virus spread is once and for all eliminated within your organization. As all the data is kept on the Server, only the servers hard disks need to be protected.

Repairing and Maintenance free Thin Client PC OS

Nothing can ever go wrong on the Thin Client PC in terms of Operating System. Thin Client PC can be directly switched and on any time, no scandisks or other such procedures are needed.

Zero downtime for clients

Think, when a users’ PC (with hard-disk) stops working. The administrator has to arrange for another PC or get that PC fixed, move the hard disk and pray that the data is all intact. This results in an average a days loss of productivity. In case of Thin Client PCs if the hardware fails there is zero down time for the user as the Thin Client PC can be easily replaced with another Thin Client PC or the user can simply supply his or her login and password and start working exactly from he or she left.

No UPS required for Thin Client PCs

UPS is required only on the server side. Even in the case of a power failure no data corruption or data loss can take place on the Thin Client node as all computing virtually happens on the server only.

Single point of up gradation

If ever the need arises all the hardware and software needs to be upgraded only on the server side. The Thin Client PCs that have the device installed inside them, will never ever require any further hardware or software up gradation.

No Moving Parts = No Problems

Moving parts like Hard disks causes 95% of the problems. No moving parts mean no problems.

Centralized Data Storage and Backup

Users rarely keep and maintain backup of their crucial data. In case of a data loss of corruption or any such disaster occurring, the importance of backups is acutely felt and realized. In case of Thin Client PCs, since all data is on the server, regular backup need to be taken only from on location.

One of the best Thin Clients available today are Smart Station Thin Clients. Smart Station has a variety of Thin Clients to suit needs of any size of computer infrastructure and the consultancy is great of providing the best customized solution for organization.

The manufacturers of Smart Station, M/s Apurva Computers Technologies Pvt. Ltd. has various avenues of association to provide maximum options to you and your company. The mission of the company is to develop the IT solutions with your business processes and goals. Apurva Computers Technologies Pvt. Ltd aims to be your reliable IT partner who delivers value through quality and cost effective hardware services. The company is an ISO 9001:2000 certified companies; your partnership with the company can drive your business in the new competitive world economy. This company can be very reliable, responsible with quality of services for your business.

Why Linux Os For Vps Hosting

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A Linux Virtual private server is one of the best reliable and cheapest form of VPS hosting due to the N number of reasons like Linux operating System is an open source OS, so we don”t have any need to pay anything for using Linux as well it is one of the perfect OS for business needs when it come to reliability and security. Linux VPS is a perfect to host mission critical websites along with individual needs. Although some time management of Linux VPS seems a difficult task to deal. For management of a VPS server we will have to select a web hosting control panel like cPanel and Plesk, which provide the functionality that can manage the majority of features and factors that can affect server security and performance.

As we know Linux is an Open source OS, various developers have created different versions of it to meet different needs however core is the same. The majority of the Linux flavors are open source that means we can ask a wide variety of Linux distributions for our needs and configurations during our order process.

Linux based VPS hosting has a lot to offer in terms of reliability and feature, which provides us the best value of the money from our web hosting investment. Even a low configured VPS can be more reliable than a window based VPS or shared hosting; however, to make a Linux based VPS sever reliable as possible we should take care of measurement to optimize the applications running on our server to reduce the amount of resources that we are using. There are a large number of open source applications available for Linux Distributions and these applications can also be modified according to personal needs as the source code of the application is available for free of cost in all cases. We can find Linux VPS hosting having the following features for all the users:

Value for money

Linux VPS servers are able to offer a good level of reliability that ensure us best returns of investment (ROIs). With well and highly configured Linux VPS we can accept good value for money.

Distribution

As we know Linux OS is an open source Linux distribution available for free of cost to use, and since it is free of cost open source our web hosting provider should be able to offer us with a VPS using any open source Linux distribution for no extra cost. We will see we can get more from servers if we are using the right Linux distribution system.

Open Source Applications

There are so many open source free of cost applications available for Linux server than for Windows servers that means to configure the VPS with functionality what we want, we don”t have to pay a penny for any applications which may be requires. Open source applications are available for free cost and provides full access over the source code means we can modify the application to functions in the way we want.

In summary , we can see that Linux VPS has a lot more to offer than windows based servers. And it is relatively cheaper in terms of money and more reliable in terms of performance. As Linux is Open source means that we have so many different distributions to choose from with support of number for open source applications. To get the best value on the investment Linux VPS is the best option.

Linux Data Recovery Using ‘myrescue’ Utility

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In Linux operating system, myrescue is an utility to retrieve still-readable information from damaged hard drive. This Linux Data Recovery tool is similar to the dd_rescue, however it attempts to quickly get out of corrupted area to handle undamaged part first. After extracting data from the undamaged area, the utility then returns to the damaged area and tries to fix it.

The myrescue utility attempts to copy your hard drive block-wise to the file and creates a block bitmap (table) remarking whether the block is successfully copied, not handled yet or it has errors. The block bitmap or table can be employed in the successive runs for concentrating on unresolved blocks.

This Data Recovery Linux utility effectively handles the read errors, through its special skip way. General the hard drive surface blemishes cover more than simply one data block and uninterrupted reading data from the defected areas may damage the hard drive surface, the hard drive mechanisms, and read/write heads.

When it occurs, the possibilities of retrieving the remaining and undamaged data decreased dramatically. Therefore in the skip mode of myrescue, it attempts to escape the damaged area quickly by exponentially incrementing the step size. It marks the skipped blocks as un-handled in block bitmap table and they may be retrieved at later stage.

Ultimately, the utility has an advanced option to multiply attempt for reading data from a data block, before believing it is damaged.

However, you should bear in mind that this utility is not a replacement for third-party data recovery utilities. When you have a second option, do not even try to use myrescue, as the tool may cause more damage to your hard drive.

The myrescue utility is available only for the situation that you’re completely desperate and cannot afford any professional Linux Recovery utility. If your data is highly significant for your business, it is worth to go for professional recovery applications.

The Linux Data Recovery softwares are able to handle all types of data loss situations, ranging from simple deletion to the most severe file system corruption. These applications carry out in-depth scan of entire Linux hard drive and extract all lost, missing and inaccessible data from it. It comes equipped with simple and efficient GUI, to allow you to carry out Do It Yourself recovery.

Stellar Phoenix Linux Data Recovery is the most familiar and powerful program that ensures absolute recovery of all your lost data. The software recovers data from Ext4, Ext3, Ext2, FAT12, FAT16, and FAT 32 file system volumes. It is compatible with all major distributions of Linux operating systems including SUSE, Debian, Red Hat, and Fedora.

Your Company Needs Linux Server Backup

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You should look into Linux server backup to protect yourself from unforeseen data loss. Data are very important especially because they are widely used in todays trade and daily life. Losing data might mean losing customers for a business. Despite the growing reliability of data over the recent years, it cannot be avoided that calamities and disasters may strike anytime putting a threat to data.

Some risk potentials are not physical. Malwares, worms, Trojans, and other viruses could be perfect examples. It is also possible to be affected by hacking activities which may cause data to be manipulated without authorization. While a stable firewall may help, only Linux server backup can maximize data security.

Linux has set the highest standards to be able for it to have the best Linux server backup solution. It has an extremely stable and strong operating system that allows hosted sites to have a very quick upload time. This flexibility allows advanced features to be available at free of cost. For major operating systems such as Ubuntu, CentOS, and Red Hat, options are web-based thus remote backup is possible to carry out anytime and anywhere.

The best thing about Linux server backup is that it offers network encryption. This makes data less prone to unauthorized access and manipulation. Majority of Linux distributions comes with 256-bit network encryption, 256-bit AES storage encryption, and unique security certificates thus your data become more secured against unlawful attacks. These features can give you the peace of mind knowing even your most delicate information are free from leakage.

Another great thing about Linux is that it is highly scalable. It can easily adapt regardless if the environment is small or large scale containing petabytes of data. Being dynamic and scalable, Linux server backup can meet anything you require from it without compromising backup quality and data integrity.

These are some of the features that you should look for in Linux server backup. The operating systems kernel has been built from the ground up to be highly robust and scalable, handling anything you can give it. It is used actively around the world in a number of small and large-scale environments without any problem. Among other things, the security that Linux server backup offers safeguards your data the best way possible against attacks and hacking.