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???
12/19/08 18:38
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 		 #161059 - Don't kill off SCSI too quickly
Responding to: ???'s previous message
And SCSI is dead, because the cables got really expensive, and it was finicky about termination. FireWire is superior to SCSI in pretty much all aspects.

A bit of a simplification that FW is superior.
It is not for bandwidth.
It is not for latency.
It is not for supervision.

You have a bit of a problem with S.M.A.R.T. information using both USB and FW.

When talking about transfer rates:
FW 400 wins over USB for external disks.
FW 800 wins over FW 400.
SCSI/SAS wins over FW 800.

Note that SAS is to SCSI what SATA is to (P)ATA.

About the parallell SCSI cables - yes, quite expensive. But then again, server-class SCSI or SAS or SATA disks are expensive so the cable price doesn't really matter so much. Especially since it may connect quite a number of disks.

How many 15krpm disks will you be able to find, that isn't SCSI/SAS? Or did you mean a SAS enclosure with external FW interface?

List of 26 messages in thread
TopicAuthorDate
About USB interfacing            01/01/70 00:00      
   SILabs - FTDI            01/01/70 00:00      
      F340            01/01/70 00:00      
   Like this            01/01/70 00:00      
   FTDI makes it pretty easy            01/01/70 00:00      
   re: About USB interface            01/01/70 00:00      
      Or the new FTDI FT2232H            01/01/70 00:00      
         Too bad it is so slow ...            01/01/70 00:00      
            Why your pauses?            01/01/70 00:00      
               Indeed            01/01/70 00:00      
                  Driver model            01/01/70 00:00      
                     I see similar behavior under Fedora            01/01/70 00:00      
               It gets "curiouser and curiouser" ...            01/01/70 00:00      
                  sleep, perchance to dream            01/01/70 00:00      
                     Does not sound like his problem            01/01/70 00:00      
                     I'm not so sure ...            01/01/70 00:00      
                  Powered how?            01/01/70 00:00      
                     The drive is a Western Digital 1 TB "MyBook"            01/01/70 00:00      
            work it            01/01/70 00:00      
               Yes, times are changing.            01/01/70 00:00      
                  times            01/01/70 00:00      
                     Don't kill off SCSI too quickly            01/01/70 00:00      
                     It is not useful work to me ... I have done it, but ...            01/01/70 00:00      
            Bits do not equal bytes            01/01/70 00:00      
               It's the FIFO, not the USB            01/01/70 00:00      
   added with another MCUs or special chips            01/01/70 00:00      

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