-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Tim wrote: > On Sat, 2008-02-02 at 11:57 -0800, Les wrote: >> SCSI is a serial system, or at least it can be. > > Pardon? Usually, when one has a data bus for several parallel data > lines at once, one refers to it as parallel. > > Serial - one data line, that sends bits sequentially. > Parallel - several data lines, that send bits simultaneously. > > The most usual way of finding SCSI used with drives was as a parallel > bus, anywhere from 25 to 50 pins per connector. No longer. SAS = Serial SCSI. I can barely get any high-end servers delivered without SAS anymore. The hardware is cheaper and simpler to produce than parallel. Also, you have each device on their own line - just like with SATA. A cable error no longer renders the whole 15 devices useless. - -- Peter Larsen -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHpXQXHbLDna3OFD0RAuUTAJ0WYdpEBJcvl+nziH1FSuw6gSTdeQCgg/0H 947MXz4IxEyDiX+vw/am3LA= =Zl9m -----END PGP SIGNATURE-----
