-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Saswat Praharaj wrote: > 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 ]
Yes, burst is transfer speed not speed from the platter. The drive has a cache (2MB). From that cache you can transfer at 100MB/s, not from the platter sadly enough. Even those 10kRPM drives don't do 100. So road == cable == from cache in a sense (assuming the cache can do 100MB/s). T-Ford = platter. I wish it was different but it's not. I mean, a SATAII-300 - do you honestly believe you can read and write att 300MB/s to that drive? To/From Cache : maybe. Platter : No way. But if you read the same data 10 times in a row (size=1MB let's say) then yes, you should be seeing 100MB/s or somewhere close depending on where your controller is, how saturated the bus is, etc. // Stefan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (MingW32) iD8DBQFC5NzGBrn2kJu9P78RAikFAJ0Tg073q3hsBb6bG9ucwOqYLaxBuQCfQWqk gYjK8WJ/at4uNJhks+uh3RA= =cNWZ -----END PGP SIGNATURE----- - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
