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The spindle speed has always been a sore point. If you compare harddisk development within the last 10 years or so, we have:
Capacity 10GB -> 1TB: 100x
Sustained data rate: 15MB/s -> 150MB/s: 10x
Spindle speed: 10kRPM -> 15kRPM: 1.5x
I have no values for full stroke, but I think that's about 2-3x as fast nowadays.
Especially the first two parameters mean that it takes us 10x longer to read out a harddisk compared to 10 years ago.
Spindle speed is purely a mechanical limitation though, where as capacity and data transfer are electrical.
Nope, they're physical: they're both a function of how close together the bits are packed on the platter.
Nope, they're physical: they're both a function of how close together the bits are packed on the platter.
Can't you just plug both the SATA power and the molex power plugs on existing 10k Raptors to achieve 20k spindle speeds?
Really? Are the bits on the drive little LEGO blocks that the heads switch ON or OFF to make up the data?
IMO if they want a fast raptor, they should make a Hybrid, then you get the best of both worlds.
They should take like a 640AAKS and toss in 32gb or so of SSD... you get your quick access times and you get your large storage capacities.
for some reason those dont sit well with me. could be the over complex and the multiple points of failure thing. Simple Stupid is a time proven formula that works.
IMO if they want a fast raptor, they should make a Hybrid, then you get the best of both worlds.
They should take like a 640AAKS and toss in 32gb or so of SSD... you get your quick access times and you get your large storage capacities.
IMO if they want a fast raptor, they should make a Hybrid, then you get the best of both worlds.
They should take like a 640AAKS and toss in 32gb or so of SSD... you get your quick access times and you get your large storage capacities.
I never understood why they made the new raptors smaller. Smaller platters means the outside edge is traveling slower right? doesnt that mean slower transfer rates and cutting off the fastest part of the disk? Ive been boggled every since I saw the new smaller raptors. Heck if they did get them to 20k RPM the outside edge probably wouldnt be all that much faster than a full size 15k drive right? (or I may be horribly scewing up that guesstimation math).
But having more disk on the outside part wouldnt hurt the seek performance of the inside part. There would just be a slower seeking, faster transfer extra portion of the disk. Making it 500gb or so? Maybe its based off 640? I think these old raptor 74gig drives we have are actually 80gig drives with the inner most power disabled to increase benchmark read / write scores.
Anyone ever try to "overclock" a Raptor? Actually mess with the circuitry to bump the speed up to 12-13-15K?