Biggest HD?

Well the largest one readily available for consumers is 1TB, but I know they have working models which are much, much larger.
 
You'd have to ask them, for their servers I wouldn't be suprised if they use 146GB SCSI drives though.
 
tomb08uk said:
Microsoft is hosted all on one western digital usb hdd mate :s
Click to expand...

Oh no, didn't you know? they have it stored on a usb thumb drive with 128MB of ram!

Na, i know they use desiel generators when there main power gets cut off in case of an emergency.

Google on the other hand, compared to microsoft isn't bigger than microsoft but here are there hard drive specs roughly.

Current hardware

Servers are commodity-class x86 PCs running customized versions of Linux. Indeed, the goal is to purchase CPU generations that offer the best performance per unit of power, not absolute performance. Estimates of the power required for over 450,000 servers range upwards of 20 megawatts, which could cost on the order of US$2 million per month in electricity charges.

Specifications:

* Over 450,000 servers[1] ranging from a 533 MHz Intel Celeron to a dual 1.4 GHz Intel Pentium III (as of 2005)
* One or more 80GB hard disks per server (2003)
* 2–4 GiB of memory per machine (2004)

The exact size and whereabouts of the data centers Google uses are unknown, and official figures remain intentionally vague. In a 2000 estimate, Google's server farm consisted of 6000 processors, 12,000 common IDE disks (2 per machine, and one processor per machine), at four sites: two in Silicon Valley, California and two in Virginia.[6] Each site had an OC-48 (2488 Mbit/s) internet connection and an OC-12 (622 Mbit/s) connection to other Google sites. The connections are eventually routed down to 4 x 1 Gbit/s lines connecting up to 64 racks, each rack holding 80 machines and two ethernet switches.

Used reference: http://en.wikipedia.org/wiki/Google_platform - 2007.
 
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