yups I meant MBps ..thanks for correcting me .
However, I dont agree with your ford/road example.
I just checked the product specification of STA340016A (seagate) .
Here is what they claim :
[ This manual describes the functional, mechanical and interface specifi-
cations for the ST380021A, ST360021A, ST340016A and ST320011A.
These drives provide the following key features:
· 7,200-RPM spindle speed and 2-Mbyte buffer combine for superior
desktop performance
· High instantaneous (burst) data-transfer rates (up to 100 Mbytes per
second) using Ultra DMA mode 5 ]
I have found average seek time is little faster (around 1ms) for read
than write.
Still that doesn't justify the write speed of 15-20 MBps and 55-60
MBps for read.
Can anyone help me understading how/why write is different than read.
Thanks and Regards,
Saswat
On 7/25/05, Stefan Smietanowski <stesmi@xxxxxxxxxx> wrote:
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>
> Hi Saswat.
>
> > Moreover, I am wondering if I could achieve the 100Mbps read speed as
> > claimed by different vendors.For me , It should ideally be 100 Mbps as
> > I am using a 80 conductor cable and UDMA 5.Why then I am getting 58
> > Mbps max . .
>
> If you mean Mbps then you are already above it. 100Mbps = 12.5MB/s
> give or take and both speeds are above that.
> I guess you probably mean 100MB/s though and that is only what
> the cable can take.
>
> If you take a T-ford onto the highway - can you go 130Km/h in it?
>
> No, the road is rated at 130Km/s but the car can't go that fast.
>
> Same here, the standard says you can transfer 100MB/s over the cable
> but the disk isn't fast enough to be able to transfer that fast.
>
> // Stefan
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