[ltp] External USB drive

[Hector Socas Navarro]

Hi folks,

	I recently purchased a 200Gb extrenal hard drive (USB 2). When I 
started using it I found it painfully slow so I used hdparm to test its 
speed:

[root@sauron root]# hdparm -Tt /dev/sda

/dev/sda:
  Timing buffer-cache reads:   128 MB in  0.38 seconds =336.84 MB/sec
  Timing buffered disk reads:  64 MB in 93.69 seconds =699.50 kB/sec

Something's very wrong here. I should be getting ~40 MB/sec, right? The 
usual hdparm options don't work because a USB drive is treated as a SCSI 
disk. Does anybody know why I'm getting this poor performance or how to 
fix it?

I'm running RedHat 7.3 with some updates and kernel 2.4.22 on a T30

Thanks in advance!

Hector
-- 
                       Hector Socas-Navarro
                     High Altitude Observatory
           3450 Mitchell Lane, Boulder CO 80307-3000 (USA)
Phone: 303 497 1543, Fax: 303 497 1589, E-mail: navarro@hao.ucar.edu