With the introduction of SAS 12Gbps, seems like "it's time" to do a braindump on SAS.
Work in progress, as usual.
History
By the late '90's, SCSI and PATA were the dominant technologies to attach disks. Both were parallel bus multiple drop topologies and this kind of sucked. SATA and Serial Attached SCSI (SAS) evolved from those, using a serial bus and hub-and-spoke design.
Early SATA/150 and SATA/300 were a bit rough and had some issues, as did SAS 3Gbps...
Don't be afraid to be SAS-sy ... a primer on basic SAS and SATA
Work in progress, as usual.
History
By the late '90's, SCSI and PATA were the dominant technologies to attach disks. Both were parallel bus multiple drop topologies and this kind of sucked. SATA and Serial Attached SCSI (SAS) evolved from those, using a serial bus and hub-and-spoke design.
Early SATA/150 and SATA/300 were a bit rough and had some issues, as did SAS 3Gbps...
Don't be afraid to be SAS-sy ... a primer on basic SAS and SATA