everythingaboutsatahardisk.com

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A new USB cradle that supports 2.5″ and 3.5″ SATA hard drives have been released recently. It sports a new style and designed innovatively to make it really easy and simple to The stylish and innovative design make it really easy to replace between two SATA hard disks. The cradle is very easy to use. You dont even have to read the manual to be able to operate it. what you do is simply connect the cradle to the USB port of your personal computer. Place the SATA hard drive in the cradle. Thats just about it. You can access and write the data available inside your hard drive. Users will definitely see the difference of ease of use. Because they can access multiple hard drives without installing it internally. It is a very practical tool and is very convenient. the USB cradle works on both Windows and Mac operating systems. Plus, there is limit in the storage capacity of the ahrd drives. Just plug it in, and the cradle will detect and open it up.

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Even though the hard drive stores data, it isn’t perfect by all means. Hard drive failure is imminent and a vulnerability to all computers, with no real way to prevent it. there are several reasons why a hard drive can fail, the most common factor is, overheating. Viruses and accidental deletion comes second. The old mechanism of hard drives didn’t over heat the way the drives do now. It is because the RPMs before were often low. Now we have as fast as 7,2000 to 10,000 rpms. It really generates heat. And the only solution provided for these problems are cooling fans. And most of the systems now have built in system sensors to monitor the heat over all the computer. Overheating has become a main problem of today’s hard drives. To prevent your drive from this problem, you make sure that it has a proper ventilation in hand. You can buy fans affordable enough to install in the tower casing.

Image source: www.hardwarezone.com
Fujitsu Asia introduced the MHW2BK series of Serial Advanced Technology Attachment (SATA) hard disk drives (HDDs).
Made mainly for blade server, industrial, robotic, surveillance and telecommunications operations, the MHW2BK series of HDDs has been considered with a spindle speed of 7,200 revolutions per minute (rpm) and a maximum data rate of 3 gigabits per second (Gb/s).

The product line also incorporates features to decrease the adverse effects of rotational vibration (such as read or write failures) which may arise when multiple drives are mounted on a single chassis and rotated at high speeds, for increased operational stability.
Specifications of the MHW2BK Series
Form factor 2.5”
Capacity * 60 GB, 80 GB, 120 GB
Interface Serial ATA 3.0 Gb/s
Rotational speed 7,200 rpm
Avg seek time (typ) 10.5ms (read); 12.5 ms (write)
Data transfer rate Max 300 MB/s
Buffer size 8 MB
Shock tolerance
- Operating 300 G (2 ms)
- Non-operating 900 G (1 ms)
Power Supply + 5 V ± 5%
Power consumption R/W (typ) 2.1 W (1.5 Gb/s) / 2.3 W (3.0 Gb/s)
Idle (typ) 0.80 W (in slumber mode
Standby (typ) 0.13 W (in slumber mode)
Acoustics Idle (typ) 2.5 bels or less
Dimensions (H x W x L) 9.5 x 70 x 100 mm
Weight 116 g or less

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Coolness!

Western Digital has a new product and they have only recently launched it. It’s the WD Passport Portable which is a 320-Gbyte hard disk drive. It comes (so far) in black and weighs less than five ounces. It is a plug-and-play and lightweight Passport that connects to computers via USB port. It needs no power adapter (even if you can have one) since it is drawn from the USB bus. The WD Passport Portable also has available software for keeping files both in the Passport and the host computer in synch. This new gadget is aimed at people who need a portable backup device for large files such as music, video, and other data. This gadget is both PC and Apple Mac desktop and notebook compatible.

Source: Information Week

This product is actually an advanced file undelete and recovery designed for Windows (Windows 9x/ME, Windows NT 3.51 or above, Windows 2000/XP/2003/Vista) and which also supports FAT12, FAT16, FAT32 and NTFS file systems.

This product is pretty helpful for file recovery, pc recovery, photo recovery, partition recovery, and iPod recovery. Accidentally deleted or lost files from all types of digital storage media (i.e. files, folders, digital photos, spreadsheets, word documents, music files, video files, databases, presentations, etc.) from PC hard drives, corrupted drives, USB drives, iPods, floppy disks and digital cameras, plus its folder structures will no longer be a cause of worry.

This product can be bought at the official PC Recovery site . Your drive can be scanned and previewed for deleted or lost files before purchasing. There is also a return policy for unsatisfied customers.

Nonetheless, not all disappointment are expected. Normal use ultimately can lead to an interruption in the inherently frail apparatus, which makes it indispensable for the user to from time to time back up the data onto a discrete storage space. Failure to do thus will lead to the damage of data. Even as it may every now and then be possible to retrieve lost information, it is generally an awfully expensive procedure, and it is not probable to warranty accomplishment. An analysis was published by Google recommended very little relationship among failure rates and moreover high temperature or motion level; still, the association between manufacturer/model and malfunction rate was comparatively strong.    

The HDD’s spindle structure relies on air pressure within the enclosed space to hold the heads at their proper airborne height as the disk turns around. An HDD needs a certain variety of air pressures in turn to operate correctly. The links to the outside environment and pressure happens because of a small gap in the enclosure which is approximately 0.5 mm in diameter. More often than not, through a carbon filter on the inside. If the air pressure is extremely small, in that case there is not sufficient lift for the flying head. The  head becomes too close to the disk, and there is a possibility of head crashes and data loss. Specifically manufactured sealed and pressurized disks are desired for reliable high-altitude function.

Hard disk drive producer indicate disk capacity by means of the SI prefixes mega-, giga- and tera-, and their short forms M, G and T. Byte is characteristically abbreviated B. For example, the prefix mega-, which on the whole means 106 (1,000,000), in the milieu of data storage can mean 220 (1,048,576), which is almost 5% more. Alike usage has been pertaining to prefixes of superior scale. This results in a inconsistency among the disk manufacturer’s affirmed capacity and the obvious capacity of the drive when looked at because of most operating-system tools. The dissimilarity happens to be all the more obvious (7%) for a gigabyte.

The size of an HDD can be considered by reproducing the number of cylinders by the quantity of heads by the number of segments by the quantity of bytes/sector. Drives with ATA interface, bigger and in excess of eight gigabytes perform as if they were prearranged into 16383 cylinders, 16 heads, and 63 sectors, for compatibility with older operating systems. Contrasting in the 1980s, the cylinder, which calculates reported to the CPU by up to date ATA drive that has no longer definite physical parameters given that the reported numbers are controlled by historic operating-system boundary and with zone bit recording.

The motor has an outside rotor; the stator windings are copper-colored. The spindle bearing is in the middle. To the left of center is the actuator by means of a read-write head beneath the tip of its very end and close to center; the orange stripe next to the side of the arm, a threadlike printed-circuit cable, attaches the read-write head to the core of the actuator. The elastic, to some extent ‘U’-shaped, ribbon cable just about visible below and to the left of the actuator arm is the elastic section, one last part on the hub, that continues the link from the head to the controller board on the reverse side.