Simviation Forums

Hey guys quick question, is SATA 2 compatible with SATA?

Nope, different connector. SATA3 is though.

Cheers
Cameron

I thought you could use SATA2 drives on an SATA mainboard Cameron?

SATA, SATA2, SATA3.... = marketing scam

No different than ATA, ATA100, ATA133, SATA150 and SATA300... all bullsugar

The speed of the drive in access time based on rotation and the data speed between the buffer and the disk is what makes a hard drive. In example, the WD Raptor has a buffer to disk spec of 84MB/s. That is what will show up on a hard drive benchmark but that is not the speed of the disk any more than SATA150 means you bet 150MB/s transfer from equal drives. The rule of thumb is divide it by EIGHT for the real world performance and then add in a percentage for faster rotation and access time


This should be an eye opener... here is the real world base speed of hard drives:

ATA = 7MB/s
ATA100 = 12.5MB/s
ATA133 = 17MB/s
SATA150 = 18.75MB/s
SATA300 = 38MB/s (NOTE: This is only true if the buffer to disk is equal to or greater than 75MB/s, most of them are NOT and are rated @ 55-60MB/s)

SCSI Drives are the only drives rated in a true MB/s. that is why a good SCSI raid controller and drive setup can cost thousands of dollars.

A RAID array using 2 WD Raptors on a good controller maxes @ a true 76MB/s transfer rate ASSUMING the I/O receiving the information is greater than or equal to the speed of the Raptor array (the burst and what a benchmark shows is NOT the true, real world speed of the drives or the array)

The hard drive companies have gone to great lengths to place marketing labels on the industry.

A single SATA150 WD Raptor is faster than a typical SATA300 drive by quite a bit.

Hmm, didn't know that. I always thought that because some motherboards had "SATA2 Support" that the slots were different.

Hiowever I did know about the speeds.

Cheers
Cameron

wow now im confused...  ??? so... back to the original question, is SATA2 compatible with SATA?

Yes it is, but get a SATA3 drive insted due to the transfer speed.

Cheers
Cameron

okay then, thanks Cameron, congo and Nick N for your help its greatly appricated.
kind regards
Ben

A single SATA150 WD Raptor is faster than a typical SATA300 drive by quite a bit.

And I have one!! Hurray!!

And I have one!! Hurray!!

Glad it worked out for you. Sorry I couldn't help.

Cheers
Cameron

Glad it worked out for you. Sorry I couldn't help.

No problem Cam ... and yes, I'm very glad I got one!

Right having found a place that still stocked SATA hard drives i've bought one and it should arrive in the morning post, but how do i set it up? just plug and play? As i've looked into my bios and it said something about RAID or IDE... and i'm awfully confused now....
Kind Regards
Ben

im getting a sata drive quite a cheap one and ive had people telling me to get a more expensive one for quicker transfer etc etc.. to whihc i replied

"look mate, ive been using a 4 year old  (gotta be around their) 80gig + 20gig IDE hdd, if you can get worse than that do it, but this sata is a lil quicker than the old, as long as its quicker then im happy"

and thats my view on things

ha ha ha, yeah well look at my specs, im going from 2 ide drives with like 2mb cache each... andonly 60gb added together... this new drive cost me

(Students dont earn much you know ) lol...

If you work in the right place you make quite a bit Over the summer I was banking $250 paychecks a week + bonous / tech service. How do you think I could afford my watch?

Cheers
Cameron