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 -- Dan.
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