« Reply #11 on: Tuesday 21 February 12 14:25 GMT (UK) »
Hi Jim,
USB sticks and other forms of 'flash memory' are far more reliable than internal or external hard drives. The reason for this is that hard drives consist of many moving parts (A rotating platter of disks, a moving head which seeks portions of the disk to read/write data to). For this reason, hard drives fail at a much higher rate and a higher frequency than flash memory like USB sticks (which have no moving parts). Perhaps you had a bad experience with a cheap USB stick. Dont want to appear as a know it all but I thought it might be important to let you know in case you have all your data sitting on one external hard drive :/
From the wikip[edia article on Flash Memory:
"Flash memory does not have the mechanical limitations and latencies of hard drives, so a solid-state drive (SSD) is attractive when considering speed, noise, power consumption, and reliability"
Cheers
Tom
Hi Tom
Thanks for your comments, but I'm still not convinced about the use of USB sticks for important backups. I am familiar with the operation of hard drives having used them for more than 20 years and during that time (professionally and personally) I have never had a failure. On the other hand I've had to bin 2 unreliable USB sticks, though in fairness I have to say that my current Maxell 16Gb stick has given me no problems at all. I know in theory flash memory should be more reliable and indeed more and more internal and external drives are now using solid state technology. However, I will quote part of a report from Lancaster University :-
"USB memory sticks (also known as pen drives) are extremely useful, a lot more reliable than floppy disks, and one of the best ways to move data around. It is best to use them for transport rather than long-term storage. They should not be used for the primary copy of your work or to make permanent backups."
I concur with that view if only for the fact that the sticks are more likely to be lost or stolen or damaged. I would never trust one with my backup. My primary backup is on a very reliable (fingers crossed) Seagate external drive with a secondary backup online with Microsoft SkyDrive, as I mentioned earlier in this thread. I guess we'll have to agree to disagree Tom but thanks all the same for your view.
Jim
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