Quantum

October 22nd, 2014

med_ap104s3060.jpgQuantum was founded from designers and executives Shugart Associates, IBM and Memorex. They came up with the eight inch drive. The idea of the product was to achieve very good performance without costing much on full closed servo system.

The Q500 series was the most popular of Quantum. In 1982 it had a market share of 25%. Later on Quantum was also started to develop SCSI hard drive. The product was released in 1986, it was the Q280 drive. Further developing resulted to ProDrive. A combination of Q500 series and Q280 series technology were used in prototyping it. ProDrive supports the ATA interface.

To Slave or Not to Slave

October 15th, 2014

This is a manually set designation done on an IDe hard drive that tells the computer system whether the drive is the boot drive or primary or secondary. This is vital for it tells your CPU where the boot drive is that contains the Operating system(usually windows). This can be determined with a quick check on the label of the drive where the pin designations are shown.

Setting this, you take a look at the IDE hard drive(preferably when it is still not installed on the computer system) in between the IDE cable and the power supply. There are normally three pairs of pins, one for master another for secondary or slave and the last one is for auto-detect with the computer system determining on it’s own which is which.

Hard Drive Fact

October 8th, 2014

The normal process of the platters is to spin up once the hard disk is started and keep spinning. The spinning course is the most tiring part on the spindle motor of the hard disk. A lot less effort is require maintaining the speed of the spindle. To get the maximum performance of the hard disk is the keep it on spinning. Before the hard disk can read or write it need to spin up on full speed.

When the hard drive is spinning down it doesn’t only reduce power consumption at the same time it reduces the thermal output. Thus, spinning down the spindle increases the longevity of the hard disk.

Understanding IDE Hard Disks

October 1st, 2014

1.jpgHard disks or sometimes called hard drives allow the storage of huge amounts of data on an electromagnetically charged surface or set of surfaces. A hard disk is actually composed of a stack of disks similar to old phonograph records where data is recorded in concentric circles known as tracks. The disk drive head records and reads information stored on the tracks. There are two heads located on both sides of a disk that either reads or writes data as the disk is spinning. Every read or write event needs for the data to be located which is known as seek operation. Hard disks come with varying speed and mapped to logical block address (LBA) which is commonly found in larger hard drives.

HDD’s will get even smaller next year

September 24th, 2014

Laptop and Notebooks are making strides like never before this year. Therefore, one of its major components needs to change or, in this case, shrink but retain its memory size.

HDDs apparently represent the most expensive component in a netbook system, as CPUs, LCD panels, optical disc drives and batteries mostly fall between US$20 and US$25 each, while a 2.5-inch HDD can go for as much as US$43-45, a perfectly good reason for trying to lower the cost of these specific components. The three storage companies are said to be focusing on minimizing the cost of the drive’s ICs, magnetic platters, and pick-up heads. Storage capacities for the lower priced hard drives are to fall between 80GB to 120GB, on the condition that the price cut is effective.

Small is the future…

Source

Western Digital’s High Revenue

September 17th, 2014

 

Western Digital, one of the world’s computer hard drive manufacturer has reported that they had better third quarter revenue, better than what the company has expected. They said that the increase was made possible by the high demand of enterprise customers. It has now dominated the hard disk market. The need for hard drives has been surging continuously because the demand for computers does not stop. It just increases in time.

Analyst have predicted something generally less because people have been choosing the use of smart phones instead of personal computers but it seems that that Western Digital will still be doing a lot of business. PC sales fell to 14 percent during the first quarter of 2013, this makes it the biggest dip for at least two decades but it doesn’t affect the sales of the hard drives. People who are not buying computers already have theirs at home and they still need more storage. 

How Much is Enough

September 10th, 2014

harddrivesThe ability to connect a specific hard drive is generally limited but he architecture of the motherboard and bios as a matter of fact with most today limited to 500GB in capacity. Attach a larger drive and you may not be able to utilize the full capacity of the drive which you may find out in the detected drive displayed within the BIOS setup screen. Though most motherboards now use auto detect, detecting and getting the information about the hard drive from the internal electronics, there was actually a time when you had to know the parameters of the drive for one to mount it and use it properly. IDE today has become an older standard, replaced by SATA which has faster transfer rates and other speedy attributes. They also have a slimmer connector that lessens the restrictive effect the former 80-wire flat cable had on the overall computer system. Continue reading »

MTBF – Meaure of Reliability

September 3rd, 2014

crash2Mean-Time-Between-Failure or MTBF is a term used to describe the reliability of the parts of a computer system from a technical standpoint describing reliability and is measured in hours. The higher this number the more reliable a computer part is. with respect to hard disk drives, particularly IDE drives this denotes the number of hours before it fails or parts of the electronics, motors and bearings can last without any failure. This is an older measure used by the computing industry when hard drives were still quite steeply priced with the best ones reserved fro use on servers and other high demand uses. Ide has long been replaced by the SATA standard which eliminates the thick IDE cable that blocks airflow within a computer’s casing preventing proper cooling.
Continue reading »

IDE Hard Disk: Why Such a Name?

August 27th, 2014

Every hard disk is interfaced in the motherboard through a disk controller. This disk controller is the one that plays bridge between the hard disk and the operating system. For the user to access data from the hard disk, there is a data bus connecting the hard disk and the motherboard. The data bus is like a pipe where bytes of data are being transmitted. ATA bus

There are two kinds of data buses, Serial ATA and Parallel ATA, which are used in SATA hard disk and IDE hard disk respectively.
IDE is the abbreviation of Integrated Device Electronics. The Parallel ATA was earlier called IDE. Thats why hard disks that use Parallel ATA are called IDE hard disks.

The IDE Hardisk

August 20th, 2014


Image source: www.flickr.com
Integrated Drive Electronics (IDE) hard disks have been around for quite a few years.  Prior to these drives, hard disks were interfaced to a PC motherboard via an extension board known as a hard disk controller.  The drive did most of the mechanical stuff and performed essential electronic/servo functions; the controller told it in detail what to do.  The development of the IDE hard moved most of the electronics and firmware (low-level software on a chip) from the controller to a printed circuit board on the drive itself.  In the process, a buffer/cache’ memory was added to the electronics to speed-up the process of reading and writing hard disk drive data.  The drive got “smarter.”  Overall costs went down and performance went up.
A much simpler board, usually identified as an IDE Controller, interfaced the IDE hard disk to the motherboard bus.  The term IDE Controller is a misnomer.  It is really nothing more than a bus interface and an interface and connector for the IDE cable going to the drive.  The actual controller is on the drive.