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HBA IT mode SAS卡直通卡功能对比

Mon, 03 Apr 2023 00:00:00 +0000

LSI SAS1068E

PCIe 1.0 x8 lanes = 2GB/s or x4 lanes = 1GB/s
SFF-8087 port = 4x SAS lanes
SFF-8484 port = 4x SAS lanes
SAS1/SATA2 = 3Gbps = 375MB/s
8x SAS lanes * 375MB/s = 3GB/s (24Gbps)
不支持SATA硬盘大于2TB的SATA硬盘(SAS盘无限制),已经淘汰无购买价值

LSI SAS2008(8x SAS lanes) LSI SAS2004(4x SAS lanes) LSI SAS2116(16x SAS lanes)

PCIe 2.0 x8 lanes = 4GB/s or x4 lanes = 2GB/s
SFF-8087 internal port = 4x SAS lanes
SFF-8088 external port = 4x SAS lanes
SFF-8644 external port = 4x SAS lanes
SAS2/SATA3 = 6Gbps = 750MB/s
8x SAS lanes * 750MB/s = 6GB/s(48Gbps)
最适合接普通机械硬盘的直通卡, 带宽足够机械盘,同时发热低

LSI SAS2308(8x SAS lanes)

PCIe 3.0 x8 lanes = 7.8GB/s
SFF-8087 internal port = 4x SAS lanes
SFF-8088 external port = 4x SAS lanes
SFF-8644 external port = 4x SAS lanes
SAS2/SATA3 = 6Gbps = 750MB/s
8x SAS lanes * 750MB/s = 6GB/s(48Gbps)
发热较高,可以接SATA接口的固态盘,或者接大量机械硬盘带宽不够时可用

LSI SAS3008(8x SAS lanes)

PCIe 3.0 x8 lanes = 7.8GB/s
SFF-8643 internal port = 4x SAS lanes
SFF-8644 external port = 4x SAS lanes
SAS3 = 12Gbps = 1.5GB/s
8x SAS lanes * 1.5GB/s = 12GB/s(96Gbps)
支持12Gbps的SAS3盘

LSI SAS3408(8x SAS lanes)

PCIe 3.0 x8 lanes = 7.8GB/s
SFF-8643 internal port = 4x SAS lanes
SFF-8644 external port = 4x SAS lanes
SAS3 = 12Gbps = 1.5GB/s
NVME support via "Tri-Mode"
8x SAS lanes * 1.5GB/s = 12GB/s(96Gbps)
支持nvme固态