SAS: A Key Fabric in Storage World (VIP Experts Blog – Synopsys)

SAS: A Key Fabric in Storage World (VIP Experts Blog - Synopsys)

In our previous blog on SAS, we discussed about SAS 24G new encoding and features. In the series of SAS blogs, here we shed some light on other generations of SAS that are still hot in the market. SAS was announced in 2004, supporting data rates till 3Gbps for SAS drives and was compatible with SATA I through an idle interleaving process. Bandwidth scalability in SAS is achieved through connection aggregation. In this model, each SAS connection between common endpoints acts as a logically bonded channel, and bandwidth increases as individual channels are combined. By 2008, SAS-2 devices with 6Gbps data rate gained volumes in the enterprise domain. In 2012, with fourth-generation SAS , interface bandwidth doubled and reached to 12Gbps. SAS-3 addresses signal quality…

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