2026-04-29

Sata Data Transfer Rates VS RPM

DATARECOVERYUNION.COM03 mins

I am looking to buy a new HDD, my SSD and 200GB HDD is not even close to enough storage for me, so im looking for either 1tb or 2tb, not too sure on the differences in performance, newegg has a deal right now for a 1tb caviar black 7200 rpm for $120, but its only sata 2 interface, however i could pick up a 2tb caviar green drive with sata 3 interface, but there only 5400 rpm for $130 im mainly going to be using the drive for storage, backup and games, since my OS is installed on my SSD. what would be the best bet here based on my needs?

Media servers don’t really stress the disk all that much, except maybe for caching. Any drive, probably even one from ten years ago, could handle the read rate for a media server. There’s an easy way to estimate how much bandwidth you’d need to serve a file.

Let’s say you have a 720p rip on your machine, at 4.5 GB. This movie is 90 minutes long, and you want to serve it from the media server. So, at minimum, your drive needs to be able to read 4.5 GB of data in the time it takes the movie to play. That’s only about 0.85 MB/s.
Because the initial buffering is going to hit the disk harder, you’ll have a higher utilization there, so let’s say we need to load the first minute of data (about 50 MB) as quickly as possible, say in under 5 seconds. That gives us a peak speed requirement of about 10 MB/s.
Even the worst 5400 RPM drive should be able to handle 10 MB/s, and 0.85 MB/s is a pathetically light load.

Which is better a 5400 RPM or a 7200 RPM  hard drive and why?

5400 is slower (doesn’t read and write as fast) but uses less power
7200 is faster, but uses more power.
Usually for a laptop 5400 is better.
So for Desktop 7200 is better.

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DeepSpar Data Recovery

DATARECOVERYUNION.COM03 mins

About DeepSpar Data Recovery: DeepSpar Data Recovery Systems is an Ottawa, Canada-based company dedicated to providing “serious gear for data recovery professionals”. DeepSpar was founded on a partnership with ACE Laboratory Russia to market the PC-3000 family of products in North America. With more than 16 years of successful data recovery engineering experience, engineers of…

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The Undelete Company Updates its Flagship File Recovery Tool

DATARECOVERYUNION.COM05 mins

The Undelete Company Updates its Flagship File Recovery ToolDecember 17, 2011 — The Undelete Company updates Hard disk drive Recovery Professional, the companys top quality file recovery tool. The brand new update grows the amount of file types based on PowerSearch and LivePreview calculations, permitting the tool to recuperate and preview more kinds of documents from badly broken, repartitioned and formatted storage media. The recently added formats include files created by latest versions of popular desktop and mobile office tools, several exotic digital picture and music formats, and many additional video containers. Product??s Web site consists of full listing of supported formats.

Hard disk drive Recovery Professional offers its customers a chance to rapidly recover information from badly broken, corrupted, inaccessible and formatted disks. The tool offers two unique calculations that place the tool consistently in front of the competition: PowerSearch and Live Preview. PowerSearch offers a chance to locate known file types by their characteristic signatures even when the file record no more seems within the file system. LivePreview is really a convenience feature permitting the customers to determine live previews of supported file types prior to the recovery is created.

PowerSearch and LivePreview rely on a database of known file formats provided with every installing of Hard disk drive Recovery Professional. With the addition of more file types in to the database, The Undelete Company offers Hard disk drive Recovery Professional customers a chance to consistently recover more kinds of files, particularly individuals produced within the latest versions of desktop and mobile office conditions.

About Hard disk drive Recovery Professional
Hard disk drive Recovery Professional enables computer customers without previous experience of file recovery to effectively repair logical damage on their own hard disk drives and memory cards or unerase erased files inside a completely automatic manner. The merchandise includes intuitive wizard-like interface you can use by even unskilled computer user. Hard disk drive Recovery Professional automates the entire process of file recovery, permitting undoing damage triggered by accidentally formatting the disk or removing files.

The proprietary PowerSearch engine prioritizes the recovery of office documents, ZIP and RAR archives, and digital pictures in a variety of formats over other kinds of files, making certain priority handling of user??s work and information. The PowerSearch engine accesses the disk in low-level, checking its surface sector by sector and matching this content with some pre-defined designs to be able to identify the start and finish of every identifiable document. This, consequently, enables Hard disk drive Recovery Professional to uncover and effectively restore files that might be otherwise irrecoverable.

Hard disk drive Recovery Professional creates all versions of Home windows, supports all revisions of Body fat and NTFS file systems, and rebounds all kinds of storage media including hard drives, SSD drives, exterior drives, memory cards and expensive drives.

Demo version of Hard disk drive Recovery Professional can be obtained like a download free at http://www.the-undelete.com

Company
The Undelete Company is an expert in manufacturing of information recovery and disk restoration solutions. The organization constantly researches its target area, presently focusing on renovation of broken files in a variety of formats. The Undelete Company provides the entire spectrum of software items to recuperate erased files, broken file systems and corrupted disks and partitions by customers, SOHO and corporate clients.

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Data Recovery Glossary (Letter C)

DATARECOVERYUNION.COM08 mins

CMOS Setup
A program supplied in most systems that allows you to configure internal and external devices.

Cable Select (CSEL)
An alternative option which can be used in place of setting Master/Slave jumpers in the designation of drives in a dual drive configuration. Master/Slave designation is based on the position of the drives relative to the cable. Special cabling is required by the system manufacturer to selectively ground the CSEL signal on one of the IDE cable connectors. For example, when one of the drives is connected to the grounded CSEL conductor, it configures itself as the Master. When the second drive is connected to the other connector, on which CSEL is not grounded, it becomes the slave. This eliminates the need for unique jumpering configurations between the Master and Slave drives.

Cache
High-speed RAM used as a buffer between the CPU and a hard drive. The cache retains recently accessed information to speed up subsequent accesses to the same data. When data is read from or written to disk, a copy is saved in the cache, along with the associated disk address. The cache monitors the addresses of subsequent read operations to see if the required data is already in the cache. If it is, the drive returns the data immediately. If it is not in the cache, then it is fetched from the disk and saved in the cache.

Capacity
The amount of information, measured in bytes, that can be stored on a hard drive. Also known as storage capacity.

Central Processing Unit (CPU)
The main processing chip of a computer. The CPU interprets and executes the actual computing tasks, and has the ability to transfer information to and from other resources over the computer’s main data-transfer path, the bus.

Channel
A connection or socket on the motherboard or controller card. A motherboard may have one or two channels (primary and secondary). If your motherboard has only one channel, you may need to add a controller card to create a secondary channel.

Channel Assembly
In the computer industry, the final assembly of a system by a distributor or reseller from kits provided by the manufacturer and from components shipped directly to the assembler by subsystem makers.

Clean Room
An environmentally controlled, dust-free, assembly or repair facility in which hard drives are assembled or opened for internal servicing.

Cluster
A hard disk term that refers to a group of sectors. A cluster is considered an allocation unit. At least one cluster is allocated to each file, regardless of the file’s size, that is stored in the DOS environment. The cluster size increases with the partition size determined during formatting. With a 1024 MB partition, the cluster size is 32 KB. Each file stored consumes 32 KB of storage space, no matter how small the file. Create multiple, smaller partitions to avoid wasting space on small files. (This definition applies to FAT16).

Command Aging
A SCSI feature that prevents the command reordering algorithm from keeping I/O processes waiting in the command queue for extended periods of time.

Command Queuing
A feature that enables the drive to receive I/O processes from one or more initiators and execute them in an optimum sequence.

Command Reordering
A feature that allows the drive to reorder I/O processes in the command queue, which results in minimizing the seek time and rotational latency and thus increases throughput.

Controller
A device that transfers information between the computer and peripheral devices. The controller (or “control unit”) acts as a traffic manager. See also disk controller, interface controller, and disk drive controller.

Controller Card
An adapter with the control electronics for one or more hard drives. Usually installed in a bus slot in the computer.

Correctable Error
An error that the drive can correct by using Error Detection and Correction schemes.

Customer Configuration Code (CCC)
A firmware revision tracking code that defines a major product change. This number increments as form, fit or function changes are implemented. The CCC code guarantees that the correct revision of drive product is provided to the customer.

Cyclic Redundancy Check (CRC)
Data stored or transmitted with data to detect corruption. By calculating the CRC data and comparing it to the original data sent, the receiver can detect some types of transmission errors.

Cylinder
The cylindrical surface formed by identical track numbers on vertically stacked disks.

Cylinder, Head, Sector (CHS) Addressing
A method of referencing the sectors on a drive as a collection of unique cylinder, head and sector addresses. Each block on the drive will have a unique cylinder, head and sector address.

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Levels of Data Recovery Specialists

DATARECOVERYUNION.COM03 mins

Data Recovery SpecialistsGenerally data recovery specialists can be divided into three different levels, according to their technical competence and the recovery methods they use.

1. First level’s data recovery specialists just can use the software which are developed by others. Such as the widely used data recovery software: FinalData、EasyRecovery and R-STUDIO; The system recovery software: DISKGEN (DISKMAN), etc. In fact, these are very good software. Even if a great skilled programmer is difficult to write the similar data recovery software or the better software than the above-mentioned software. However, sometimes these classical software can’t play a role with two reasons:

a). The situations of data loss are complicated and different. The software can’t be applied to every case;

b). These software don’t have thought. They use the fixed mode which is set by programmer to judge and deal with the fault. Sometimes the result may be biased or even wrong. Therefore these technicians who just can use the ready-made software have the limit capacity to deal with the data loss problem.

2. Second level’s data recovery specialists know the main file systems’ sector store rules. They can analyze data which stored on the sectors. Then fix some error system parameters by the malfunction reasons and the status of the storage medium. With the above-mentioned classical software, their problem solving skills will be greatly enhanced. When they analyze the sector’s data, they can give full play to their logical thinking skills, and then do the right operation.

3. Third level’s data recovery specialists can develop corresponding program according to their need to analyze the sectors’ data. Using these programs, the operator can quickly and accurately judge the reasons which caused the malfunction, and then find the best way to recover the data. With the above-mentioned classical software, their data recovery skill can attain the higher level. At the same times, these technicians can constantly improve these software’s function by their operation experience. Let these software can help others to detect and diagnose data loss reasons better.

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Before You Pull Your Hair Out, Call a Data Recovery Company

DATARECOVERYUNION.COM07 mins

What happens when you are working on a special document or project on the computer and your screen goes blank! Panic? No – get help!

The good news about a crash is that most data, in most situations, can be recovered. Some projects may require several days, or even weeks, but about 75 per cent of all assignments can be turned around in less than 48 hours and the average data recovery success rate is 85 per cent.

The bad news is that organizations can sometimes make matters worse by delaying their response in a crisis situation, or taking action that makes their data harder, or in a bad case, impossible to retrieve.

Sometimes people fail to recognize that any loss of data is an immediate and urgent problem. What if the hard drives on all the new computers start to fail or all the new software is corrupt?

But denial can carry a much higher price than inconvenience. The McGladrey and Pullen accounting firm says 43 per cent of those companies that experience a disaster in their data center never reopen and 29 per cent close within two years. The company estimates that this year, one out of every 500 data centers will have a severe disaster. Together, hardware or system malfunctions and human error account for three out of four outage incidents. The rest are due to software corruption, computer viruses and ‘physical’ disasters like fire and water damage.

Background On Backups

There would be less work for data recovery companies if existing backup technology and practices protected data adequately. Backups and redundant storage technologies can be a successful backup strategy for many companies. But unfortunately, of those who do back up their data, they could not restore the data from backups.

There is a long chain of assumptions in a backup procedure: the hardware is working properly; users know how to perform the backup; the backup software works; the media is actually capturing the data; and, the data being backed up is the right information. Any break in the chain creates a dangerous vulnerability.

When systems do break down, clients can turn to a data recovery solution. One of the most important tasks is creating a climate of trust. By the time we are called in, the seriousness of the situation can no longer be denied and relieving the psychological pressure is crucial. In some situations, the client has to make some choices. ‘Which data do you need first? Are you willing to sacrifice some data, or receive it a different file format from the original?’

Environmental Controls

Companies can reduce the risk by controlling three environments.

In the hardware environment, the organization should keep computers in clean, temperature-controlled, low-traffic areas to reduce accidents and equipment failures. Computers must be protected from power surges and backups stored in a safe, off-site location. Today’s magnetic storage media is becoming more vulnerable to Extraneous Static Discharge (ESD) damage so protect your system from static.

Check hard drives at least once a month, with software that alerts you to any problems. “New” noises like scraping and grinding noises are a signal to shut down the system immediately and call in an expert. They can mean serious damage. Running the drive could not only destroy it but all the data as well. Never use a hard drive or storage device that has been physically damaged in any way, or exposed to a harmful environment.

Control the software environment with regular, verified backups to make sure the right data is actually being stored. Scan for viruses with software updated at least four times a year and screen all incoming data. Always create “undo” disks when new software offers that choice, so you can reverse any changes. In the case of suspected electrical or mechanical drive failure, never use file recovery software, because it can make things worse.

Most importantly, create a human environment that creates awareness and responsibility. If data is critical to the success or even survival of your organization, make sure those directly responsible have the right tools and training, and make sure all your employees how important the data protection procedures and policies are to the business. They will be motivated to follow them.

Finally, when disaster does strike, recognize it, be decisive and get help quickly. The faster a data recovery service gets the assignment, the better you chances of getting back in business quickly

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