What Are The Problems With VM Ware
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by: MikeWhite
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Word Count: 492
Date: Sun, 30 Nov 2008 Time: 11:53 AM
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Technology has a funny habit of solving one problem but then highlighting another. A typical example of this is the emergence of virtual operating systems, that is an OS that runs on top of another OS. While there are many advantages to many computer users in running these configurations they all rely the humble hard disk , and as fragmentation occurs, this can lead to instability and potentially data loss.
Virtual machines must still make use of the slowest part of any modern computer system: hard drive technology. Hard Drives can be partitioned to appear as dedicated individual devices, these devices are then often utilized to store virtual partitions and virtual operating systems. Underneath this "virtual" layer, the hardware is storing data as it always has, in a fragmented inefficient manner.
Hard disk fragmentation occurs when files are split in to multiple chunks as they are slotted into spare space on the hard drive. If you are running a solitary OS chances are you have already noticed considerable slow down in your system since purchase. Just imagine two or more OS's running causing the same file fragmentation! Pretty soon your system could come to a grinding halt.
Fragmentation is the scourge of modern computers as most people fail to conduct even the most basic maintenance on their computers. The situation just get worse over time and some people have even been known to purchase a new system even though there is nothing wrong with the old. On servers and raid arrays fragmentation is far more serious as it slows down business applications and reduces productivity. In very bad instances data recovery is the only method of saving the data.
Each operating system will have it's own method of dealing with file fragmentation (or not as the case may be). Whilst Mac OS X will automatically defragment a file under the size of 20mb, windows pays scant regard to how badly files are fragmented. Other systems use a variety of different methods to combat the problem.
Windows does ship with its own on board defragmentation tool but many would consider it a mere tick in the box as running the utility will mean that the hope of having a usable system in the meantime is improbable, and defragmentation could last for many hours or even overnight in some cases, so what are the other options.
Use automated defragmentation routines: Dependent upon your OS you can normally, either directly in the OS itself or via third party software; schedule defrags to run at times convenient to yourself.
Invest in dedicated hardware. Not the cheapest solution but for business and power user home systems probably the most sensible route. Dedicated hardware could be an additional hard drive (internal or external) a dedicated raid array or even an SSD device. The actual solution will depend on how mission critical the application actually is.
About the Author
About the author: Mike White is a technology enthusiast with a keen interest in business computing, Hard Drive Recovery, Raid Recovery consumer electronics and design and technology news and events.
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