----- "Daniel Carosone" <d...@geek.com.au> skrev: > On Mon, Apr 26, 2010 at 10:02:42AM -0700, Chris Du wrote: > > SAS: full duplex > > SATA: half duplex > > > > SAS: dual port > > SATA: single port (some enterprise SATA has dual port) > > > > SAS: 2 active channel - 2 concurrent write, or 2 read, or 1 write > and 1 read > > SATA: 1 active channel - 1 read or 1 write > > > > SAS: Full error detection and recovery on both read and write > > SATA: error detection and recovery on write, only error detection on > read > > SAS: Full SCSI TCQ > SATA: Lame ATA NCQ
What's so lame about NCQ? roy _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
