[CentOS] Avago (LSI) SAS-3 controller, poor performance on CentOS 7

Sat Nov 5 19:54:00 UTC 2016
John R Pierce <pierce at hogranch.com>

On 11/5/2016 12:08 PM, Gordon Messmer wrote:
> On 11/05/2016 06:40 AM, Steven Tardy wrote:
>> What firmware is/are on the cards?
> In the dmesg output I included:
> mpt3sas0: LSISAS3008: FWVersion(, ChipRevision(0x02), 
> BiosVersion(
>> The driver version difference between C6 and C7 could interact badly 
>> with old firmware.
> I suspected that was the case, and tried running elrepo's 
> "kmod-mpt3sas" from their testing repo.  C7 has version, 
> while elrepo's appears to be  That didn't change anything.
>> What firmware does $vendor suggest?
> Haven't asked yet, since the same firmware produces different behavior 
> on the two OSs. 

I know with the SAS2 chips (SAS2008, SAS2308, etc), FreeBSD strongly 
recommends the firmware revision matches the driver revision, so if the 
driver is P20, the firmware also should be P20.    I don't have any SAS3 

john r pierce, recycling bits in santa cruz