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Forum Discussion
veehexx
Aug 24, 2010Aspirant
2.5" hdd
i've just bought a new hdd for a laptop, and looking at it's spec - http://www.wdc.com/en/products/products.asp?driveid=685, it seems a 1tb drive is also available - i find this interesting! obviou...
PapaBear1
Aug 25, 2010Apprentice
I just noted in another thread that an NVX with 4 drives would draw 67 watts when all four drives were spun up and operating and only 37 watts when they had spun down and were idle. Thats not a very power hungry device. In fact the power supply in the NVX would choke if it tried to boot your PC (wiring to the plug is different so could not be connected).
Fact is, 3.5" drives will always have a higher capacity available that 2.5" spindle or even 2.5" SSDs. For example the 1TB 2.5" is as I posted earlier the leading edge of 2.5" spindle technology and twice the price of 3.5" 1TB drives. As far as a 1TB SSD drive is concerned, Newegg actually has three listed, two of which are PCI Express cards with 8 SODIM sockets with memory modules and costs either $3.500 or $4,400. The third is in a 2.5" format but still costs almost $3,200. Thats a long way with being prince competitive with a 1TB 3.5" drive at $75.
What this boils down to is that if there is ever a demand for 2.5" drives, it may happen, but as long as the 3.5" drive is the desired drive by the vast majority of users it will remain unlikely.
Remember that there are two definintions for RAID - 1) Redundant Array of Independent Drives and 2) Redundant Array of Inexpensive Drives. Enterprise devices will always go for the first, using more expensive enterprise class drives for their longer life and reliability and consumer devices will then toward the latter using more reasonably priced consumer drives so they can get higher capacity for less cost.
And we have not even touched on the fact that not all 3.5" drives are compatible much less the 2.5" drives.
Fact is, 3.5" drives will always have a higher capacity available that 2.5" spindle or even 2.5" SSDs. For example the 1TB 2.5" is as I posted earlier the leading edge of 2.5" spindle technology and twice the price of 3.5" 1TB drives. As far as a 1TB SSD drive is concerned, Newegg actually has three listed, two of which are PCI Express cards with 8 SODIM sockets with memory modules and costs either $3.500 or $4,400. The third is in a 2.5" format but still costs almost $3,200. Thats a long way with being prince competitive with a 1TB 3.5" drive at $75.
What this boils down to is that if there is ever a demand for 2.5" drives, it may happen, but as long as the 3.5" drive is the desired drive by the vast majority of users it will remain unlikely.
Remember that there are two definintions for RAID - 1) Redundant Array of Independent Drives and 2) Redundant Array of Inexpensive Drives. Enterprise devices will always go for the first, using more expensive enterprise class drives for their longer life and reliability and consumer devices will then toward the latter using more reasonably priced consumer drives so they can get higher capacity for less cost.
And we have not even touched on the fact that not all 3.5" drives are compatible much less the 2.5" drives.
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