Basic Knowledge On Hard Disk Drives (HDD)

One of the most critical components of IBM Servers is the Storage Subsystem which includes the RAID controller and the Hard Disk Drives (HDD). Typical HDD capacities found in today’s IBM Server Systems range from 2.25GB to 9.1GB (1Giga Byte = 1 Billion bytes). RAID 5 and RAID 1 architecture technology provides the ability to continue operation in the event of HDD failures and provides the ability to rebuild lost data. Although HDD reliability has greatly improved in the past five years, the areal densities (defined below) have grown at a staggering 60% compound growth rate during that same time.

Due to the complexity of HDD’s and the nature of the technology, media defects are a fact of life in ALL HDD’s manufactured today. However, HDD’s employ effective error correction techniques and data threshold analysis and reassignments to help prevent data loss. This paper will explain the reason why media defects occur initially and why they may occur throughout the life of the drive.

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January 30, 2015 6:11 am

How Can A Good Thermal Paste Increase Security?

Thermal paste helps strengthen the encryption of your CPU, have you ever read or heard this claim before? As for me and in full honestly I have not. In fact this is not true at all as there is no relationship between thermal pastes and encryption in any way, but I’m making a post on this issue just to waste my and your time in this crap. So I advise you not to continue reading because you will get really bored. So back to our topic, thermal paste and encryption. How can this be possible? And how can a thermal paste increase the encryption of your CPU? This is what you might not understand at all in your life.

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October 22, 2014 3:48 pm

Cooling Systems In Modern Computers

Thermal grease consists of a polymerizable liquid matrix and large volume fractions of electrically insulating, but thermally conductive filler. Application of thermal paste is essential to keep the processor cool and happy. Follow this general guide to reapply thermal paste after removing a heat sink or CPU during a repair. For more advanced directions, specific to your CPU, check out Arctic Silver’s page of application methods.

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November 1, 2015 5:29 am

Things You Have To Know About Solid State Drives (SSD)

Now, you might say that this type of storage already exists in the form of flash memory drives that plug into the USB port. This is partially true as solid state drives and USB flash drives both use the same type of non-volatile memory chips that retain their information even when they have no power. The difference is in the form factor and capacity of the drives. While a flash drive is designed to be external to the computer system, an SSD is designed to reside inside the computer in place of a more traditional hard drive. Abbreviated SSD, a solid state disk is a high-performance plug-and-play storage device that contains no moving parts. SSD components include either DRAM or EEPROM memory boards, a memory bus board, a CPU, and a battery card.

So how exactly do they do this? Well, an SSD on the outside looks almost no different than a traditional hard drive. This design is to allow the SSD drive to put in a notebook or desktop computer in place of a hard drive. Because they contain their own CPUs to manage data storage, they are a lot faster (18MBps for SCSI-II and 35 MBps for UltraWide SCSI interfaces) than conventional rotating hard disks ; therefore, they produce highest possible I/O rates. To do this, it needs to have the standard dimension as a 1.8, 2.5 or 3.5-inch hard drive. It also uses the common SATA interface so that it can easily be placed into any PC as a hard drive would.

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October 17, 2015 8:42 am

Storage Device Usage In Gaming Environments

It’s a fact that all gaming devices must contain a storage device where games are saved to be launched later on user’s request. The most popular gaming consoles now use the same storage devices as used with regular computers, which is a hard disk drive (HDD) or even a solid state drive (SSD). This will cause a problem to some users when the plan to upgrade their console’s storage device, should they choose an SSD, which is much faster than the traditional hard drive, or is the mechanical hard drive is still a good deal for them? These questions must be answered carefully in order to take the right step on your way to buying a new replacement for your current storage device.

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July 8, 2015 4:19 am

Different types of solid state drives (SSD)

Solid state drives (SSD) have been a very popular alternative to the traditional mechanical hard drive (HDD) to the extent that the ultimate hope for every computer user is to get a new system that sports a solid state drive. But on the other hand, many of those users are not aware of the basic

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May 7, 2015 7:19 pm

Arctic Cooling MX-2 Thermal Compound

Turbo MX-2 is a high conductive and low resistance compound for components that require the best thermal dissipation. MX-2 is ideally suited for use in CPU, GPU cooling and other applications between power semiconductor components and heat sinks where high thermal conductivity is critical. Since the MX-2 compound does not contain any metal particles, there are no problems regarding electrical conductivity and capacitance. In contrast to silver and copper compounds, contact with electrical traces, pins, and leads cannot result in any damage. Curing and bleeding of the compound is not possible. In contrast to metal or silicon pastes, this compound does not show decreasing performance over time, does not need to be reapplied and has a durability of at least 8 years.

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April 13, 2015 2:28 pm

Arctic Silver 5 Thermal Paste Review

Arctic Silver 5 is one of the latest, most advanced, and best performing thermal greases available on the market. Sold in 3.5 or 12-gram packages, Arctic Silver 5 can be used on five to 40 processors, depending on the size of the processor and the amount you purchase. The compound consists of 3 different silver molecules, sub-micron zinc oxide, aluminum oxide, and boron nitrate particles suspended in polysynthetic oils. The particles increase thermal performance and long- term stability of processors. The compound is designed for easy application from the tube, and increased performance after application. During the first few thermal cycles – the process of compound heating and cooling – Arctic Silver 5 will thin out over the processor and heatsink, filling in microscopic valleys and eliminating imperfections. After the compound has thinned, it will thicken until it reaches a final consistency after 50 to 200 hours. Once Arctic Silver 5 has arrived at its final consistency, the drop in temperature is quite noticeable; often two to ten degrees Celsius. This drop in temperature will yield better overclocks and improve system stability and longevity.

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April 13, 2015 2:21 pm

The Basics Of Thermal Grease

Thermal grease consists of a polymerizable liquid matrix and large volume fractions of electrically insulating, but thermally conductive filler. Typical matrix materials are epoxies, silicones, urethanes, and acrylates, although solvent-based systems, hot-melt adhesives, and pressure-sensitive adhesive tapes are also available. Aluminum oxide, boron nitride, zinc oxide, and increasingly aluminum nitride are used as fillers for these types of adhesives. The filler loading can be as high as 70–80 wt %, and the fillers raise the thermal conductivity of the base matrix from 0.17–0.3 watts per metre Kelvin or W/(mK), up to about 2 W/(mK).

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April 13, 2015 2:15 pm

Crucial M4 SSD Review

In this review PCSTATS will be testing the 256GB Crucial M4 SSD, a 6Gb/s SATA III drive rated by the manufacturer for read speeds of up to 500MB/s and write speeds of 260MB/s (sequential). Crucial’s M4 SSD uses 25nm MLC NAND Flash and the same Marvell controller that Intel relies on in several of its better known solid state drives. In the hierarchical world of Solid State Drives, Crucial’s CT256M4SSD2 SSD slots into the upper-mainstream region – it’s fast, yet it’s not the fastest (or most expensive).

Looking at the numbers, Crucial’s M4 SSD is spec’d for 4KB random reads at 45,000 IOPS and 4KB random writes at 50,000 IOPS — placing it a hair slower than the OCZ Vertex 3 PCSTATS tested here. Under the Crucial M4’s aluminum cover we find 256GB of Micron Multi-Level Cell NAND Flash, 256MB of Micron DRAM for the cache and a Marvell 88SS9174-BLD2 controller.

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January 4, 2015 8:32 am

Intel SSD 330 Review

Earlier this year Intel introduced its second SandForce based SSD: the Intel SSD 330. While Intel had previously reserved the 5xx line for 3rd party controllers, the 330 marks the first time Intel has used something other than its own branded controller in a mainstream or 3-series drive.

I don’t doubt that I’ll eventually get the story of how we got here. Apparently there’s a good one behind why Intel’s sequential write speed was capped at 100MB/s in the early days of the X25-M’s controller. Regardless of how, this is where we are today: every new Intel SSD, with the exception of the high-end PCIe solution, is now powered by SandForce’s SF-2281 controller and not Intel’s own silicon.

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January 4, 2015 8:22 am