-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 El 2006-11-06 a las 12:44 +0100, escribí:
No me he mirado como funciona el sata, pero me asalta la duda de como identifica a los discos: ¿por su posición en el cable como el ide? ¿Por un identificador del propio dispositivo como el usb? Si es lo segundo, lo que le pasa a Emiliano tiene toda la lógica del mundo.
Es el cable: SATA drops the shared bus of PATA, giving each device a dedicated cable and dedicated bandwidth. While this requires twice the number of host controllers to support the same number of SATA devices, at the time of SATA's introduction this was no longer a significant drawback. Another controller could be added into a controller ASIC at little cost beyond the addition of the extra seven signal lines and printed circuit board (PCB) space for the cable header. (http://en.wikipedia.org/wiki/Serial_ATA) Y continua: Features allowed for by SATA but not by PATA include hot-swapping and native command queueing. O sea, hot-swapping en el SATA y no en PATA, al revés de como dijiste en otro emilio. To ease their transition to SATA, many manufacturers have produced drives which use controllers largely identical to those on their PATA drives and include a bridge chip on the logic board. Bridged drives have a SATA connector, may include either or both kinds of power connectors, and generally perform identically to native drives. They may, however, lack support for some SATA-specific features. As of 2004, all major hard drive manufacturers produce either bridged or native SATA drives. Hay discos que son PATA internamente y no soportan todas las características del SATA. SATA drives may be plugged into Serial Attached SCSI (SAS) controllers and communicate on the same physical cable as native SAS disks. SAS disks, however, may not be plugged into a SATA controller. Y también menciona algo del cable de alimentación que hace falta para soportar hotplugging, que no entro porque no debería ser el caso si la máquina es reciente. Léelo porsiacá. - -- Saludos Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFFTyn6tTMYHG2NR9URAnxsAJ4y3ib8InjCDS+NLQQ6yv2l8WHb9gCeLfc8 CyOKgcdkWXUkpMeSy6L3FaY= =SrRl -----END PGP SIGNATURE-----