Re: Fastest External HDD Interface?

"J. Clarke" <jclarke.usenet@xxxxxxxxxxxxxxxx> wrote in message news:dtu2ph01chi@xxxxxxxxxxxxxxxxx
Arno Wagner wrote:

Previously Mike <wxyz09@xxxxxxxxx> wrote:
While looking for an external HDD to hold me over 'til I build a PC in six
months or so I've been exploring external HDD interfaces. Currently, I
have a 4 year old Dell Dimension w/ XP Pro. I'm going to buy a USB2
Firewire 1394b internal card for it .I'd like to find out if 1394b is worth
the additional expense. I believe 1394b is capable of 800Mbs while 1394a
is capable of 400Mbs. A SATA II HDD (300MBs) in an external case
w/ a 1394b interface will a PC be able to make use of this high speed data
transfer or will the high data speed be wasted because the PC and XP Pro
don't know how to handle these speeds? What is the most cost effective
combination for an external HDD?

External SATA will give you just the same speed as an internal
disk. USB2 and firewire have a tendency to be significanlty slower
due to the tranlation that is neded. If speed is your main concern
then SATA is you only option.

But note that the SATA interface speed is significantly higher than the
disk speed (as it should be, otherwise the interface would be a bottleneck).

SATA is not his _only_ option. SCSI works fine for external storage.

LVD allows something like 5 meters of cable as well,

10 to 12 to 24 meters even, depending on which LVD standard or what SCSI configuration.

which can be a great convenience. But you pay for it.
.

Relevant Pages

  • Re: Fastest External HDD Interface?
    ... months or so I've been exploring external HDD interfaces. ... don't know how to handle these speeds? ... External SATA will give you just the same speed as an internal ... But note that the SATA interface speed is significantly higher ...
    (comp.sys.ibm.pc.hardware.storage)
  • Re: Fastest External HDD Interface?
    ... months or so I've been exploring external HDD interfaces. ... don't know how to handle these speeds? ... External SATA will give you just the same speed as an internal ... But note that the SATA interface speed is significantly higher ...
    (comp.sys.ibm.pc.hardware.storage)
  • Re: Fastest External HDD Interface?
    ... I still configure scanners using SCSI interface to PC. ... months or so I've been exploring external HDD interfaces. ... don't know how to handle these speeds? ... External SATA will give you just the same speed as an internal ...
    (comp.sys.ibm.pc.hardware.storage)
  • Re: Fastest External HDD Interface?
    ... months or so I've been exploring external HDD interfaces. ... a 4 year old Dell Dimension w/ XP Pro. ... to handle these speeds? ... But note that the SATA interface speed is significantly higher ...
    (comp.sys.ibm.pc.hardware.storage)
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