Problem with MegaRAID SAS3508 controller

[mira]

So we've tried to reproduce it on a test system provided to us, but couldn't so far.

Could you detail your setups, the workload and any steps necessary to trigger this?

 

[uzumo]

We got a test system with a Broadcom / LSI Fusion-MPT SAS38xx we are currently trying to reproduce the issues here, and the other issues we've encountered, on.

Serial Attached SCSI controller [0107]: Broadcom / LSI Fusion-MPT 12GSAS/PCIe Secure SAS38xx [1000:00e6]
Subsystem: Broadcom / LSI 9500-16i Tri-Mode HBA [1000:4050]

So we've tried to reproduce it on a test system provided to us, but couldn't so far.

Could you detail your setups, the workload and any steps necessary to trigger this?

Since we have confirmed that no issues occur with the LSI 9500-16i Tri-Mode HBA, I believe testing with the SAS3808 (LSI 9500-16i) or SAS3816 (LSI 9500-8i) operating in IT mode would not be meaningful.

* I use the LSI 9500-16i and LSI 9400-16i, and I have never had any problems with them.

Although they are the same SAS3808 and SAS3816 models, I believe testing will not be effective unless they are the iMR 9540-16i and 9540-8i versions.

The driver they use that causes the problem always appears to be `megaraid_sas`.

* Since I don't have these devices myself, this is based on what I observed in their logs.
* The LSI 9500-16i Tri-Mode HBA is an mpt3sas.