[SOLVED] Bifurcation Explaination and stuff...ie..I am confused.

[Fuggin]

Hello...please help. My brain is mush.

 

Motherboard: Supermicro X9DRL-iF

 

HBA: PCIe x8 LSI 9211-8i (IT mode) (inserted into Slot 6, closest to the CPU)

 

In Unraid DiskSpeed Container, it shows the controller is set at 4x link speed:

 

Here's my BIOS settings:

 

Do I have my settings correct? Documentation on the HBA says it is a PCIe 2.0 x8 card...so why can't it connect at x8?

 

Then the other odd thing is that my HBA is a SAS2 controller. Why is unraid loading SAS3 drivers?

 

Please advise.

 

Edited April 2, 2022 by Fuggin
I'm dumb

[SimonF]

6 minutes ago, Fuggin said:

Then the other odd thing is that my HBA is a SAS2 controller. Why is unraid loading SAS3 drivers?

This is the same as my system 

 

M/B: Supermicro X9DR3-F Version 0123456789 - 

BIOS: American Megatrends Inc. Version 3.3. Dated: 07/12/2018

CPU: Intel® Xeon® CPU E5-2697 v2 @ 2.70GHz

 

I have onboard SAS and LSI 9207-8i with same drivers.

 

 

[Fuggin]

1 minute ago, SimonF said:

This is the same as my system 

 

M/B: Supermicro X9DR3-F Version 0123456789 - 

BIOS: American Megatrends Inc. Version 3.3. Dated: 07/12/2018

CPU: Intel® Xeon® CPU E5-2697 v2 @ 2.70GHz

 

I have onboard SAS and LSI 9207-8i with same drivers.

 

 

 

I just realized that my BIOS isn't as current as yours. Need to fix that.

[SimonF]

Also what do you get for this replace 07:00.0 with 03:00.0

 

i.e. lspci -vvs 03:00.0 | grep Lnk

 

root@unraid:/usr/local/emhttp/plugins/snapshots# lspci -vvs 07:00.0 | grep Lnk
pcilib: sysfs_read_vpd: read failed: Input/output error
                LnkCap: Port #0, Speed 8GT/s, Width x8, ASPM L0s, Exit Latency L0s <64ns
                LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                LnkSta: Speed 8GT/s (ok), Width x8 (ok)
                LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
                LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+ EqualizationPhase1+
                LnkCtl3: LnkEquIntrruptEn- PerformEqu-

 

 

just installed diskspeed to see what I get.

 

SAS2308 PCI-Express Fusion-MPT SAS-2

Broadcom / LSI
Serial Attached SCSI controller

Type: Add-on Card in PCIe Slot _SLOT1 (x8 PCI Express)
Current & Maximum Link Speed: 8GT/s width x8 (7.88 GB/s max throughput)
Capabilities: storage pm pciexpress vpd msi msix bus_master cap_list rom

Edited April 2, 2022 by SimonF

[Fuggin]

1 minute ago, SimonF said:

Also what do you get for this replace 07:00.0 with 03:00.0

 

i.e. lspci -vvs 03:00.0 | grep Lnk

 

root@unraid:/usr/local/emhttp/plugins/snapshots# lspci -vvs 07:00.0 | grep Lnk
pcilib: sysfs_read_vpd: read failed: Input/output error
                LnkCap: Port #0, Speed 8GT/s, Width x8, ASPM L0s, Exit Latency L0s <64ns
                LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                LnkSta: Speed 8GT/s (ok), Width x8 (ok)
                LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
                LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete+ EqualizationPhase1+
                LnkCtl3: LnkEquIntrruptEn- PerformEqu-

root@Golem:~# lspci -vvs 03:00.0 | grep Lnk
pcilib: sysfs_read_vpd: read failed: Input/output error
                LnkCap: Port #0, Speed 5GT/s, Width x8, ASPM L0s, Exit Latency L0s <64ns
                LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                LnkSta: Speed 5GT/s (ok), Width x4 (downgraded)
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase