Saturday, 29 June 2013

Safeguard Precious Data by Keeping a Clone of Mac Hard Drive

 
Has your Mac hard drive crashed and all your important on-going works have been stopped?
You could have easily avoided such a situation, if you have created and kept a clone of your Mac hard drive.
In day to day operations, your hard drive works continuously to give the require output. As the primary data storage media of your Mac notebook or desktop computer, hard drive stores all the processed data first. Even though many users are taking back-up of their important data these days, they usually use external hard drive for backup purpose.
Users have been more educated with respect to the maintenance needs of their Macs and are keeping data recovery software with them. Thus, if at any point of computer usage, users encounter instances of file deletion, accidental media formatting, file system corruption, OS malfunction or virus infection, they use data recovery software to get back the lost data. These are the logical data loss situations, in which data recovery software are able to retrieve the lost or inaccessible data back from the troubled Mac media.
Data inaccessibility due to physical damage to the Mac hard drive is a far more critical instance of data loss than that of any logical one. Hard drive of your Mac incorporates many electro-mechanical components in it, including the read/write head, spindle motor, magnetic platter, printed circuit board (PCB) etc. All these components contribute towards the smooth functioning of the drive. Thus failure of any of the components results in hard drive crash and complete data inaccessibility.
There can be a number of reasons, which can trigger the failure of your Mac hard drive, such as mechanical components failure, electrical short-circuit, firmware corruption, heavy magnetic flow, any liquid going inside the drive, natural disasters (flood, earthquake, fire, storm etc.) etc.
In case of physical damage to the hard drive, there is nothing lies in the hands of the user. Any experimentation only leads to further damage to the hard drive causing permanent loss of precious data. In case of physical damage to the Mac hard drive, the recovery is out of the scope of any data recovery software and you have to take the help of a professional data recovery service provider.
However, data recovery service can not guaranty the recovery of 100% recovery and depending upon the magnitude of data loss, you may lose some data to it. Moreover, during the data recovery process, you have to sit idle and all your important on-going work hampers. All these problems can be avoided, once you keep a clone of your Mac hard drive.
The cloned drive can be used as an replacement of your original Mac drive and you do not need to stop the important work for recovery. These days, there are many Mac cloning utilities available in the market, using which you can easily clone your hard drive, volume or any selected region of the drive. The process of cloning Mac hdd is pretty simple and moreover, you are safe-guarding your precious data with it.

Thursday, 27 June 2013

How Mac handle hot cluster zone?


Fragmented hard drive is not rare problem , it occurs over a period of time in every hard drive in installed OS. When you save, delete, write several files in hard drive, empty space are created which is responsible for the scattered data over Mac disk. When you save new data and if it is larger than empty space , OS X keeps it into noncontinuous memory in hard drive. But, some OS like Mac OS X has the capability to prevent fragmentation by using some safety guards so that, users will never feel about the situation of their Mac hard drive.


Mac OS X has new file system i.e HFS+ which has ability to decrease the chance of file fragmentation in Mac drive. If the size of the file is 20MB and it has less than 8 fragments then OS X defrags all these types of files automatically. Another option is 'Hot File Adaptive clustering' which monitors frequently-accessed files between OS and hard drive, and then moves these files to a special zone called Hot File Adaptive clustering on the hard drive. Mac OS X defragments these files at the time of transferring into hot Zone. OS X has faster communication with this Hot Zone and it helps to keep your Mac optimized.



Hot File Clustering (HFC) aims to increase the performance of small, frequently accessed files from Mac volumes. This process is currently used only on boot volumes. HFC is a multi-staged clustering scheme that keeps record "hot" files on a volume, and moves them to the "hot space" on the volume . The various stages in this scheme are DISABLED, IDLE, BUSY, RECORDING, EVALUATION, EVICTION, and ADOPTION. Only files less than 20 MB in size are "adopted" under this scheme.



Note - Hot files on your system will depend on usage pattern in your Mac from last few days. If you are doing extensive C programming from a week then it is likely that many of your hot files will have C headers.



Inspite of all these , there are some circumstances occurs in which you need some third party tool to defrag your Mac:-



1. When you have big large files such as video files in your hard drive.

2. When your Mac hard drive gets completely filled and it has less than 10% free space.



In both above mentioned situations, the built in safeguards of Mac OS fails to prevent defragmentation, and it results sluggish behaviour of their Mac machine . Stellar Drive Defrag is one of the famous Mac defragmentation tool among Mac people. It helps to defrag your entire Mac or any selected file. Through Free version of this tool, you can check the status of your Mac drive, how much it is defragmented.





Paid version of this tool has many advance features like you can see the temperature fluctuation in Mac hard drive with the help of temperature bar. You can see the status of fragmented data free space and filled disk with graphical representation. Defragmentation is a time taking process so, this tool has an option through which you can set email notification/sound to make sure that defragmentation process completed successfully.



Features of Stellar Drive Defrag:-



1. It defrags your Mac without the risk of data loss

2. It helps to improve your Mac performance

3. Temperature bar to show the fluctuations in the temperature of Mac hard drive.

4. Email notification option

5. It supports Hot File Adaptive Clustering.



Apple has many scheme to keep your Mac faster:-



Boot cache:-



Mac OS X has a boot-time optimization which monitors the pattern of incoming read requests to the boot disk, and sorts the request pattern into a "playlist", which is used to cluster reads into a private cache. This "boot cache" is then used for satisfying incoming read requests fastly, if possible. The scheme also measures the cache hit rate, and stores the request pattern into a "history list" for use in future. If the hit rate is low then caching is disabled.



This feature is only supported for root device and it requires minimum 128 MB of physical RAM for enabling it. Entire process remains invisible from users. /System/Library/Extensions/BootCache.kext is the location of the kernel extension.

Helping Developers Create Faster Code:-

Apple provides number of performance measurement/debugging tools for Mac OS X. Some of these you can get with Mac OS and for other tools you need to download from Aple site.

Journaling in HFS Plus:-
On a journaled HFS Plus Mac volume, file object metadata and volume structures are journaled, but file object data are not journaled. The primary purpose of the journal is to make recovery process faster and reliable, in case a volume is unmounted , it helps to improve the performance of metadata operation.

Thursday, 30 May 2013

Ways to keep my Mac secure

Are you facing booting problem with your Mac? Are you not able to access any particular application or file?

If you are facing any of the these problems, it could be due to virus infection. Viruses are malicious programs, which affect Mac systems and may be responsible for the damage of operating system, system files, data files, and even applications.

Mac computers are immune to malware threats. Mac has an in-built feature to stay unaffected against viruses, spyware and Trojan threats. A number of users have strong belief that their system and data are completely safe just because they're using Mac OS X. However, this belief is not true. Mac systems are also prone to virus infection which may also lead to data loss. 
 

Ways to keep your Mac secure:- 

Mac users can secure their Mac by regularly scanning your system using an updated and powerful anti-virus utility. Such utilities are able to detect the viruses from your system and remove them easily. Another alternative is to create backup of your precious data on regular basis. 

1. Always browse safely and do not download anything from untrusted sites. Make sure your email is secure because unknown email with attachment can be a virus.

2. Keep an eye on Apple updates. Make sure you update your software whenever the "Software Update" window pops up to keep your Mac computer secure. As a Mac user, antivirus software might be a good solution to keep your Mac safe.

3.You should disable automatic login in your system so that any third person can not access your data.

Go to:- System Preferences > Users & Groups > Click to lock to make changes > Select login options > Set automatic login off.

From the Automatic Login drop down menu, select Off.

4. Apple has an inbuilt feature called File Vault , which protects your Mac from some illegal activities . It encrypts your home folder each time when you logout and decrypts it when you login. You have to set master password before starting File Vault.

To set the master password go to:-
System Preferences > Security & Privacy > FileVault > Turn on filevault >Set Master Password.
Encryption – “Encryption means to change your data into unreadable form”. It is a great method to protect files. 

5. You can use third party tools to encrypt the contents of Mac hard drive to protect your data. There are a number of encryption software available in market. I have used Stellar Drive Tool Box. This software has 13 utilities and Data encryption is one of them. It allows Mac user to encrypt data into unreadable form so that other user can not access them. You can you select any file or folder from your Mac and encrypt them to an unreadable format. 

Features:-

  • It helps to encrypt selected files and folders with password.
  • You can hide encrypted files easily find all hidden encrypted files.
  • Encrypted files can’t be opened by any decryption utility.
This file encryption software for Mac provides you the facility to choose encryption algorithm from the provided list and encrypt files according to selected algorithm. This Mac Data Encryption software gives you relaxing experience when you use it to protect your data, as it is completely safe and easy to use. 

Suggested Antivirus:-

1.BitDefender:- Bit Defender is powerful, flexible and easy to use. It's capable to protect your Mac OS X from all forms of malicious software threats. It has many features, one of them is integrated scheduler, which allows you to run scans at specific times and provides flexibility.

2.Symantec Norton:- Norton Antivirus for Mac is one of the best protection software. Its features are easy to use and protect your Mac from vulnerabilities. One of its impressive features is the dashboard widget where you can see a list of the newest detected security threats. So it helps you gain knowledge about new threats.

3.iAntiVirus:- It can protect your Mac against virus infection and block them without any wrong system impact.
With one of these antivirus programs, you can protect your Mac from both new and traditional threats and data loss.


BackUp Software:- Keeping backup is very good idea to protect your precious data. If you face any data loss situation, then backup is the best alternative to get those data back. Mac has some inbuilt utilities to create backup. This can be done via Time Machine. If a user doesn't find it cool, he can opt for the other backup tools like Drive Clone utility of Stellar Drive ToolBox, Super duper etc.. Stellar Drive ToolBox is the complete pack of 12 utilities


Features of Drive Clone:-

Cloning:- You can create exact copy of your Mac hard drive or any selected volume and keep them in other places.

Imaging:- By this option you can make an image of any selected volume and restore back from image as it's original state.

Tools- You can create a Boot DVD of the software to clone the Boot volume of your Mac.


Learn about defragmentation in Mac


What does it mean to defrag your Mac drive?



It doesn't matter on which operating system you are working either Windows, Linux or Mac , with the passage of time fragmentation occurs. The reason is when you work with your system, you create and delete thousands of files in it , empty space will be created and files gets scattered over hard drive . This state of Mac drive is called 'Fragmented Mac hard drive' and as a result of this, your Mac OS X will take extra time to open any file and launch applications, because pieces of files are fragmented around your hard drive and to overcome this problem you need to defrag your Mac.
What is defragmentation?



It is the process of organizing fragmented data into contiguous memory location to enhance Mac performance. Mac OS X has its own way to handle fragmented data, it has the ability to minimize the chances of fragmentation up to 20 MB file size. Defragmenting Mac will leave the computer's free space in one big chunk. This will allow new files to be saved in contiguous memory location, thereby reducing the need for future defragmentation.



How to defragment hard drive?



In Windows:-

Click on the Start button - > Programs - > Accessories - > System Tools. In System Tools, you'll find Disk Defragmenter. In this program, you can select the hard drive that you want to defrag. If you want to defrag multiple drive then you can select all. Click to analyze button, it will tell you either your drive needs to be defragmented or not. You will see lots of coloured bars scattered all over the graph usually means you need to defrag.



In Mac:-

As we know Apple does not provide any inbuilt tool for defragmentation to Mac users. So, if you want to defrag your Mac, you need third party tool like iDefrag, Stellar Drive Defrag.

iDefrag is very famous tool but, you have to pay more bucks to purchase it while Stellar Drive Defrag is new but, you can get it only at $39.



iDefrag- It is the product of coriolis-systems and it helps to defrag your Mac. It can defragment individual files in your Mac volume and it helps to improve your Mac performance. iDefrag monitors your drive temperature, and it will take steps to protect the drive if it starts to overheat.



Full Defrag - It combines the Metadata and Optimize algorithms defragmentation.

Full support of Mac OS X 10.8 - It is compatible with the latest versions of Mac OS X.

Works with Time Machine – It works with Time Machine back-up volumes.

Support for case-sensitive HFS+

Supports the Hot Zone – It is a smart about the files you use the most time. It moves them to an area on the disk called the Hot Zone, for improved access times.



Stellar Drive Defrag- This utility helps you to defrag all fragmented data in your Mac disk. It defrags all heavy fragmented files and optimize free spaces. When you will start scanning your Mac disk by using this tool, it will keep together all fragments of related files that can theoretically result in increased performance. There are many functions inside this tool like full defrag, quick defrag, metadata defrag etc.



If you have too much data in your drive then defrgmentation can take little longer so, it is suggested to defrag drive when you are free. With the help of this defrag tool you can easily see the fragmented file in layout view. Temperature bar is associated with this tool to show the temperature of Mac disk during defragmentation process.



Features:-

1. Defrag Mac drive effectively and safely.

2. This tool has advance algorithm to defrag Mac quickly.

3. Option to defrag a single file and metadata also.

4. After the completion of defragmentation, it sends automatic email notification (if preferred).

5. It has temperature bar to show the temperature of Mac hard drive.



System Requirements:-
 
Processor: Intel, PowerPC (G3 or later)
Operating System: Mac OS X Mountain Lion 10.8, OS X 10.7, OS X 10.6, OS X 10.5, OS X 10.4 and OS X 10.3.
Memory: 256 MB RAM
Hard Disk: 25 MB of free space
Defragmentation helps not only to keep scattered data in an organized manner but also boost the system performance.



So, I would like to suggest every Mac users to use Stellar Drive Defrag to keep their Mac healthy.



Mac defragmentation myths:-



Defragmentation can crash my Mac - There are many Mac users who believe that defragmentation can cause their Mac to crash or if they use defrag software for their Mac then it may lead sudden crash on their Mac drive.



Mac defragmentation is not possible – Many people think, Mac does not need any defragmentation activity because its file HFS+ has the ability to minimize the chances of fragmentation.



Defragmentation can slow down your Mac – There are many Mac users, who believes that defrag process can make their Mac slow.



Mac defragmentation facts:-



Mac needs defragmentation- Over a period of time, Mac disk stores fragmented data which causes slow Mac performance. So, Mac OS X needs to defrag Mac to improve Mac performance.



Defragmentation is an easy process- It is a very easy process and Mac users can easily perform it. However, Mac does not have any inbuilt tool for defragmentation but, with the help of third party tool, one can easily perform.



Defragmentation prevents Mac failures- If data remains in fragmented way in Mac hard drive then processor needs to put extra effort to pick them and show. In this process, temperature of Mac hard drive increases and there might be a chances of Mac hard drive failure.



Mac defrag process helps to increase Mac performance- Defragmentation process keeps all chunks of data together in Mac memory drive in sequential order and make it available for faster access by Mac OS. So, through this process Mac's performance improves.



These are the basics myths and facts about defragmentation but, it depends on us that how we take care of our Mac. For this purpose, you need regular maintenance of your Mac.


Wednesday, 29 May 2013

Improve Mac backup with Disk cloning


Can you imagine the worst thing that can happen to your computer? Your system may get inaccessible either due to some logical reason or physical reason of hard disk failure. Physical reason includes scratched platters, broken read/write arm, hard drive motor failure, humidity or moisture in the drive, manufacturer defect, firmware corruption, overheated hard drive, head crash, and water or fire damage to the hard drive.

Logical reason includes failed boot sector, master boot record failure,
drive not recognized by BIOS, operating system malfunction, accidentally deleted data, software crash, corrupt file system, improper shutdown, software malfunction, data corruption, and computer virus .

Your computer can fail and that too without any backup of your important data. As we know prevention is better than cure so it is always suggested by experts to have an updated backup of your drive. Creating a backup of your data can be compared with buying an insurance policy. It will help you to stand unaffected even after a severe data loss situation. You can simply restore your entire computer system and continue your daily activities as usual. For data based enterprises, losing data means losing money. 

How to backup Mac machine?

There are various ways to keep backup of Mac machine. It can be done either by using built in time machine or via some third party tools like Stellar Drive clone, CCC, Super duper etc.. 

How to back up your Mac with Time Machine -

When you connect an external hard drive to your Mac for the first time , it asks if you want to use it for backups? Click Use as Backup Disk and System Preferences will open to display time machine preferences. The backup drive is called time capsule. Time machine always keeps incremental backup. 

Incremental backup- It includes only those things that have changed since the previous backup. The another ways of creating back up are Cloning and Imaging. 

Steps to take backup with Time Machine:-

1. Click on the Time Machine icon located in the OS X menu bar

2. Right-click the drive and select “Back Up Now” from the pop-up menu

3. It will start manual backup of your data.

4. You can exclude some items from backup to conserve disk space. 

Now, if you delete any important file accidentally, you can recover it from Time Machine. Click the Time Machine icon from your Dock to enter Time Machine and retrieve the file. When you keep backup in external hard drive, it is called an offline backup. Time Machine also comes inside offline backup method. Another method is ' online backup'.

Online backup is the method of storing data on remote server. Drop Box, Black blaze are the famous online data backup solution for Mac people. Drop Box helps you to store your data at remote server via internet. You can store data up to 2 GB free of cost but, after that you'll have to pay as per the plan. The users can access and modify the remotely stored data from anywhere and at any time. 

Disk cloning – The best way to reduce data loss

Hard disk cloning is one of the safest way to protect and preserve your important data from hard disk failures . Cloning means to create an exact replica or copy of your data.

Many people get confused with the terms of 'Cloning', 'Imaging'. The functionality and purpose of cloning is similar to imaging but the difference is clone is bootable but image is not. You can boot your system by clone. When you create clone, size of destination drive should be equal or greater than source but it is not necessary at the time of Imaging. 

When disk cloning is useful?
- To create exact copy of your data
- To set up systems for new users
 

I have used Stellar Drive Clone to create my Mac backup. It offers you the safest mean to create back up of your Mac.You can create sector-by-sector image of your hard drive or any specific volume. If your system is infected with a virus, you can easily get back your system to its original state by restoring all data from the clone. 

Features:-

Cloning:- You can create exact copy of your Mac hard drive or any selected volume and keep them in other places. 

Imaging:- By this option you can make an image of any selected volume and restore back from image as it's original state. 

Tools- You can create a Boot DVD of the software to clone the Boot volume of your Mac
System Requirements for this software-

Processor:Intel, PowerPC (G3 or later)

Operating System: Mac OS X Mountain Lion 10.8, OS X 10.7,OS X 10.6, OS X 10.5, OS X 10.4 and OS X 10.3.

Memory: 256 MB RAM

Hard Disk: 25 MB of free space 

What to backup – Plan to backup

One should make backup plan but, what to backup is the most important thing. For example, if you wish to make multiple backups of personal data then keep an off-site (like CD, DVD) backup. The rest can be backed up to the Time Machine drive attached to your Mac. Now, you have to decide, which data is the most precious for you.

Monday, 29 April 2013

Back Up Strategy in Mac


It is recommended by all experts to keep backup to protect data. Keeping backup through automatic process is more consistent than manually backing up your files. There are many methods to keep backup like Time Machine which is an inbuilt and free tool available in Mac. Many people love to keep their important data on icloud or other online backup server because CD, DVD, Mac system can crash/destroy any time. Here are some other storage devices to use for different types of backups in backup chart given below:-

Backup

How to backup entire Mac drive:- You can create image or clone of your entire Mac hard drive. If you use Time Machine for backup of Mac data, it will be an incremental backup but not a bootable one. The bootable backup is needed in case when you are not able to load operating system. There are many third party tools which help you to create clone of your Mac data.

Backing up selected files or folders:- If you keep only important data or selected files and folders for backup, it will help you to save important memory space.

How to choose right backup method?
Backing up your entire hard drive requires a different approach than backing up just a few files. You can keep your entire hard drive data through Time Machine. It keeps incremental backup but, it can not clone your data. You need to use any third party tool like Stellar Drive ToolBox. It is a complete pack of 12 utilities and Mac drive clone is one of them.

This tool is very reliable and easy to use. You can clone either entire Mac disk or any selected volume.

Features of Drive clone module of Stellar Drive ToolBox:-

1. It helps you to create clone of your Mac data, by using clone you can boot your system
2. It allows you to resize volume at the time of cloning
3. It supports cloning of MBR partition of windows and DOS drive.
4. It helps to create clone of SSD drive to Mac drive.
5. You can create bootable DVD with minimal system resources.

Mac users should follow above described backup strategy, it will help them to protect their important data.
For more information please visit here:- Volume Clone

Causes of data loss in Mac


Data loss is the most common problem faced by users. There are many causes of this problem. Here are the top most causes of data loss:-

  1. Accidental Deletion:- Sometimes we accidentally empty trash without checking it properly. This situation can cause bigger data loss and if some important system files gets deleted by any means , you may face problem to boot your system.
  2. Computer virus and Malware:- Every system user should keep virus protection software in their machine to protect data because some virus can lead to data loss and hard drive crash.

  3. Physical Damage:- As we know the hard drives have platters which spin at the rate of thousands of RPMs. It is very sensitive pieces of machinery and the activity like bumps, drops, and other mishandling can lead to physical damage. If you keep hard drives carefully at low temperature then it minimizes the chances of data loss.
  1. Logical Errors:- Due to file corruption, software problems, and invalid entries in file locations logical error occurs. It can be the reason of corruption of other files on the Mac drive and lead to data loss. Logical errors can be solved by disk utility in some cases.
  1. Power Failure:- It is a common cause of data loss. If power interruption occurs during your work then it leads to loss of unsaved file.
  1. Natural Disasters:- Lightning strikes, power surges, flood, fire and earthquakes causes physical damage to hard drives and your system.
    Data Loss

Keeping proper backup will help you to keep your data safe. Stellar Drive ToolBox can help you to solve your backup problem. It has 12 utilities, Mac Drive Clone is one of them which helps you to create clone or image of your Mac.

However, Disk Utility will also help you to create backup, you can create image of your data with Disk Utility but, you cannot create bootable backup. So, Drive clone will help you to create both image or clone for your Mac data. 
Options of Drive Clone:- 

Disk Cloning:- You can create exact copy of your Mac data by using this tool.
Imaging:- It will help you to create image of your Mac data.
Restore:- You can restore your data from clone or image file.
Tools:- You can create the bootable DVD by using this option.

        For more details visit here:-  Clone Mac Drive