Panarchy Posted October 30, 2008 Report Share Posted October 30, 2008 HelloI need to buy a 1TB hard-drive.I have SATA.I need an internal one.Here is where I'm looking at to make my decision: http://www.msy.com.au/Parts/PARTS.pdfI need the following;1TBGood qualityCheapPlease tell me which of the following brands I should chose;Western DigitalWestern Digital AVMaxtorSamsung/Samsung 2SeagatePlease reply ASAP as I need the space!Thanks in advance,Panarchy Quote Link to comment Share on other sites More sharing options...
catgate Posted October 30, 2008 Report Share Posted October 30, 2008 Do you need tetradrive or multiread. Also how much back feed do you get above 2,500. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted October 30, 2008 Author Report Share Posted October 30, 2008 Sorry, I don't understand your post. Quote Link to comment Share on other sites More sharing options...
Boris Posted October 30, 2008 Report Share Posted October 30, 2008 Also how much back feed do you get above 2,500.catgate :0 I thought that was only relevant if the drive didn't support Automatic Acoustic Management AAM ? What average Rotational Latency RL are we talking about with 2500+ ? Quote Link to comment Share on other sites More sharing options...
catgate Posted October 30, 2008 Report Share Posted October 30, 2008 Also how much back feed do you get above 2,500.catgate :0 I thought that was only relevant if the drive didn't support Automatic Acoustic Management ? What Average Rotational Latency are we talking about with 2500+ ?........ if the drive didn't support Automatic Acoustic Management You are probably right, Boris. Maybe I am thinking of the slip factor on the old triple drive effect, used by the Mk 2 Parkinson PRC systems.What Average Rotational Latency are we talking about with 2500+ ?Richardson and Scarkowski proposed a formula for this in their paper published for peer review in 2006.As I recall it was P/t = 2 x L^2 (where P = latency, t = time and L = probability ....simpsonian version of K /1.9.) Quote Link to comment Share on other sites More sharing options...
AlanHo Posted October 30, 2008 Report Share Posted October 30, 2008 Please tell me which of the following brands I should chose;Western DigitalWestern Digital AVMaxtorSamsung/Samsung 2SeagateOut of your list I would go for Hitachi - being Japanese but made in China - they rotate the other way. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted October 31, 2008 Author Report Share Posted October 31, 2008 :lol:, wait, they really rotate the other way? Hahaha...Anyways, you mentioned Hitachi. I'll have a look at the prices. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted October 31, 2008 Author Report Share Posted October 31, 2008 Seems Hitachi is the most expensive of the lot.Also found this info;Seagate.Maxtor is now owned by Seagate.So... perhaps I'll have a look at seagate, as Hitachi is at least $50 more than other brands.Kinda have a budget...Panarchy Quote Link to comment Share on other sites More sharing options...
AlanHo Posted October 31, 2008 Report Share Posted October 31, 2008 You need to take account of the fact that Hitachin can store more data because the reverse rotation compacts it. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 1, 2008 Author Report Share Posted November 1, 2008 I'll probably only need 900GB of space... probably less. All I need is a fast 1TB drive. I don't need some advanced 1TB drive that can actually store 2TB (or something like that). All I need is 1TB.Panarchy Quote Link to comment Share on other sites More sharing options...
andsome Posted November 1, 2008 Report Share Posted November 1, 2008 You need to take account of the fact that Hitachin can store more data because the reverse rotation compacts it.A motor controller for an electric motor having a plurality of motor terminals is connected to a power supply and comprises a commutation control, a current sensor, a peak target circuit, a pulse width control and a reverse current control. The commutation control is connected to the motor terminals for causing current pulses to flow through selected terminals during each commutation state. The current sensor provides a sense signal representative of the current pulses, and the peak current target circuit provides a target signal. The pulse width control controls pulse width of the current pulses as a function of the sense signal and the target signal. The reverse current control prevents reverse current from flowing into the power supply during change of commutation state. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 1, 2008 Author Report Share Posted November 1, 2008 Translation please?(this gave me some idea: http://www.patentstorm.us/patents/6917172/claims.html)Anyways... Quote Link to comment Share on other sites More sharing options...
andsome Posted November 1, 2008 Report Share Posted November 1, 2008 Translation please?(this gave me some idea: http://www.patentstorm.us/patents/6917172/claims.html)Anyways...HERE Quote Link to comment Share on other sites More sharing options...
catgate Posted November 1, 2008 Report Share Posted November 1, 2008 HEREThis is an almost perfect description of the motor in our Microwave Combi oven. I had not realised just how similar they are functionally. When you think about it though the methodology and the generative input are both very similar. Very revealing. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 1, 2008 Author Report Share Posted November 1, 2008 Translation please?(this gave me some idea: http://www.patentstorm.us/patents/6917172/claims.html)Anyways...HEREI'm at a loss. I tried separating the sentences with a line on Microsoft Office Word 2007 so that it looked like this (different font though);A motor controller for an electric motor having a plurality of motor terminals is connected to a power supply and comprises a commutation control, a current sensor, a peak target circuit, a pulse width control and a reverse current control. The commutation control is connected to the motor terminals for causing current pulses to flow through selected terminals during each commutation state. The current sensor provides a sense signal representative of the current pulses, and the peak current target circuit provides a target signal. The pulse width control controls pulse width of the current pulses as a function of the sense signal and the target signal. The reverse current control prevents reverse current from flowing into the power supply during change of commutation state.But I still don't understand.PanarchyPS: Are we ever going to get back on topic? Quote Link to comment Share on other sites More sharing options...
AlanHo Posted November 1, 2008 Report Share Posted November 1, 2008 OK - back on topic.The Hitachi drives have circumvented the need for reverse direction prevention and made a virtue out of a vice. They spin up in the opposite direction to the writing head direction and use rotational vibration safeguard technology for high performance - thus compacting the data and enhancing the write speed. Whilst writing speeds are thus increased it has the opposite effect when reading data which takes longer due to the inertial lag in the commutation state - a known feature of reverse spoofladine technology. This is fine if - as you stated - you want to store lots of data - rather than read it. Never dismiss Japanese technology - remember that they are at the forefront of electronic technology made in China. Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 1, 2008 Author Report Share Posted November 1, 2008 I'm not dismissing the Japanese technologies.In fact, I've been watching fansubbed japanese anime all day!DomoI was asking all these questions about Hitashi because of the 4 other forums I posted this on, not one had mentioned Hitachi. This doesn't mean that it isn't a good brand, just means... I dunno, musn't be as popular!!!Well, after looking at the prices comparively, I don't think I will get Hitachi. What (in the people of this forum) opinion is of the next down from Hitachi? Let me rephrase; what's the next best brand?Panarchy Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 2, 2008 Author Report Share Posted November 2, 2008 After completing a polless poll, I came up with the following results;4 - Hitachi13 - Western Digital11 - SeagateWinner: Western DigitalSo I'll be getting Western Digital now.Probably two separate 500GB ones in RAID 0 (as per Arne's suggestion).Thanks for all suggestions,Panarchy Quote Link to comment Share on other sites More sharing options...
Boris Posted November 2, 2008 Report Share Posted November 2, 2008 Probably two separate 500GB ones in RAID 0 (as per Arne's suggestion).Panarchy Arne ??? ??? Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 2, 2008 Author Report Share Posted November 2, 2008 Hahaha, nope! But interesting nonetheless, read a little of that article.I meant Arne.Sorry for the confusion!PanarchyPS: Back on topic! Quote Link to comment Share on other sites More sharing options...
Panarchy Posted November 3, 2008 Author Report Share Posted November 3, 2008 How would two of these disks look?http://www.netplus.com.au/products-detail....t=&code=HD4I found out that 640GB Hard-Drives are both faster and cheaper than the 500GB ones (at least for WesternDigital)Please tell me what you think...Thanks in advance,Panarchy Quote Link to comment Share on other sites More sharing options...
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