Low Copy Speed For SATA to SATA Transfer

[Brando569]

Ive always wondered this when im transferring data from one SATA2 drive to another SATA2 drive the copy speed is never above 25 MB/sec even though one is a WD second generation raptor and the other one has a 16mb cache. shouldnt it be higher then that considering the max transfer speed of SATA2 is 375MB/sec?

Im using the generic ubuntu kernel btw.

[GreenN00b]

Depends on hard drive speed too.

[GreenN00b]

You can use a command like this

sudo hdparm -t /dev/sda

to determine the read speed from the hard disk ...

[Brando569]

Depends on hard drive speed too.

the raptor is 10k rpm and the other drive is 7200 rpm

the reason was i was copying from an ntfs partition to an xfs partition. i finally decided to convert that partition from ntfs to xfs since i barely use windows anymore and once i did the transfer rate went from about 10-25 MB/sec to about 60-70 MB/sec