On Tue, Aug 15, 2023 at 01:35:35AM +0200, deloptes wrote: > Bjorn Helgaas wrote: > > > I don't know why that would be. Are there any hints in the dmesg log? > > Can you collect the complete dmesg log with the old drives and again > > with the new SSDs so we can compare them? I assume you have good > > cables? I assume the same cables worked at 3.0 Gb/s with the old > > drives. > > > > I would *expect* that SATA r3.3 would be completely backwards > > compatible, so since mptsas worked just fine at 3.0 Gb/s with the old > > SATA r3.0 drives, it should also work just fine at 3.0 Gb/s with the > > new SATA r3.3 drives. But I have no actual knowledge about that. > > Thank you for your answer. I am also confused and couldn't think of any > meaningful reason. This is why I allowed myself to bother you. > > I did not change anything - wiring or such. The server has 12 disk bays on > the front. Old disks were pulled out and new disks were inserted into the > bays. > > You (probably much knowable in this matters than me) also assume negotiation > should result in 3.0Gb/s. And if I understand correctly it should be not a > driver issue. > > The only difference I could find out for now is that Rev3.3 introduced PWDIS > on Pin 3. To check if the cables provide wiring on P3 I should disassemble > the server, but I can do this in September :/ and it is a lot of effort. > > I am attaching a portion of the log and dmesg with the relevant information. > I see that ASPM is disabled by default (could it be related to P3?). ASPM is a PCIe feature that applies to the PCIe Links between 00:02.0 and 01:00.0 (the first 1068E) and 00:15.0 and 08:00.0 (the second 1068E). PWDIS is a feature on the SATA cables between the SAS1068E adapters and the SSDs. PWDIS/P3 should not be related to ASPM. I assume you're referring to the "disabling ASPM on pre-1.1 PCIe device" message. That should happen with both the old r3.0 HDDs and the new r3.3 SSDs. I wish I had some good ideas for you, but I don't know anything about the SATA side. I googled for "1068 ssd sata 1.5 gb/s" and found a few hints about system firmware, LSI firmware, etc, but nothing concrete. I think some controllers have a BIOS setup user interface; have you poked around in there? Bjorn
