Portable Hard Drives 7200 rpm bus powered

[sienna]

Hi,
Am looking for a good 7200rpm 2.5 bus powered drive, for video editing....must be able to be on/working for 5 hrs plus.
RAID 1 would be great Couple of questions:

Has anyone used or compared these two drives?
1.
inXtron-Macpower 2-Bay SATA -to- eSATA+USB2+Firewire800
( Taurus Mini Super-S PDM-MSBU2OS )
2.
G-Drive Raid Mini 7200 RPM 1TB

On the 1st one (taurus mini). What happens if one drive fails. Can I just wack in another drive and have it rebuild?
This Taurus is cheaper that some other drives Cal or I storage Pro.
Does it measure up to these more xepensive ones?

What happens if the G-Drive fails? Can I extract one of the two drives and replace with another and have it re-build?

Lastly does anyone have any other good tips on a QUALITY drive ?
thanks

 

[Fishrrman]

Don't expect "bus powered" USB drives to be reliable on the Mac.

The reason is that the Mac's USB power specifications result in an "under-powered" USB bus. The Mac delivers less power than does a PC to the bus to power the drive.

The result is that a USB "bus powered" [only] drive _might_ mount up properly on the Mac, or it might not. Or, if the "power load" varies on the USB bus (adding another device, etc.), the power may drop to be too low for the drive to handle, and it may dismount prematurely.

Best thing to do is use an external power source if you're going to be using USB.

Firewire is _completely_ different. The Mac _does_ supply enough firewire bus power to start and mount most firewire drives.

 

[sienna]

thanks for that info....I should have added:
I use a new MBPro, with FW 800 and both drives work off that power source