Problem Statement : I have connected 4 SATA drives to an internal SAS connector on my motherboard. They appear fine in the BIOS but Ubuntu doesn't seem to be able to detect them. I don't get anything on fdisk or lsblk. I would like to be able to use these SATA drives through SAS connectors because the motherboard doesn't have enough SATA-only connectors.
Hardware : I have a Fujitsu D3118-A22 GS1 motherboard that has 2 SAS/SATA connectors. The chipset is Intel C602. The drives are Seagate Barracuda 2TB SATA drives.
Research : (Disclaimer : I have almost no idea about how linux kernel is built/works. I just followed bread crumbs). The only indication I get about SATA over SAS is from lspci -knn | grep SCSI that returns
05:00.0 Serial Attached SCSI controller [0107]: Intel Corporation C602 chipset 4-Port SATA Storage Control Unit [8086:1d6b] (rev 05)
I further looked up the device code and found that I probably need Intel(R) C600 Series Chipset SAS Controller (https://cateee.net/lkddb/web-lkddb/SCSI_ISCI.html), which is available through isci module. The line
lkddb pci 8086 1d6b .... .... ...... : CONFIG_SCSI CONFIG_SCSI_ISCI : drivers/scsi/isci/init.c # in 3.17–3.19, 4.0–4.18
especially looked interesting. But I don't know how to use this information. Then I looked up in the kernel config and it's marked to be included as a module. screenshot from 'make menuconfig' in '/usr/src/linux-headers-4.15.0-65-generic/
Can anyone tell me if including isci module will make my SATA drives visible? Second how to include it?
Another thing I found, but not sure if it's relevant is drivers for Intel RAID Controllers (https://downloadcenter.intel.com/product/2092/Intel-RAID-Controllers). Secondly, I don't know the model of integrated RAID/SAS controller on the motherboard.
Thank you!