Bug 167965

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Description of problem:
We would like to make RedHat aware of an issue that we are able to consistently replicate in our lab environment.
We have already notified LSI Logic about a possible issue with their drivers.
Sun is aware of this problem and is currently working on finding a solution.
What we'd like to know from RedHat is- 'Why can we get a working solutions with RHEL U2, but the same procedures under RHEL U3 do not work?'

We have tried many combinations of RedHat updates/firwmware/drivers and have only found one workable solution.  The funny thing is that the workable solution is on an older update release of RHEL, and we have not been able to find a workable solution for RHEL U3 (we briefly worked with RHEL3 U4 without success, but U3 has been more thoroughly tested).
It seems to be a driver issue because we can see the LUN's correctly at the BIOS.

Equipment:
Dell PowerEdge 2800
LSI 22320-R PCI card  (LSI firmware on card: 01032700h   (1.03.27))
Sun StorEdge 3310 SCSI Disk Array (Configured with 3 LUN's)

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RHEL3 Update 2:
At initial install
Fusion MPT Drivers: 2.05.11.03
An /# fdisk -l/ or /#cat /proc/scsi/scsi/ shows 4 times as many LUN's (a total of 12) as are actually configured on our storage array.

Only after recompiling the kernel with the Fusion MPT Driver 2.06.18 does it work properly.
Using the rpm package to install the driver has an effect- we see 2 times as many LUN's as are actually configured on our storage array.


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RHEL3 Update 3:
At initial install
Fusion MPT Drivers: 2.05.16
An /#fdisk -l/ or /#cat /proc/scsi/scsi/ shows only 1 LUN (LUN #0) from the storage array.
After updating the driver to 2.06.18, by rpm package or kernel rebuild, there is no change.  We still only see LUN 0.

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H11S
Sun Heterogeneous Storage Support Team
Phone: 202-462-1599
Cell: 301-922-3571



Version-Release number of selected component (if applicable):


How reproducible:
Always

Steps to Reproduce:
1. Load RHEL U2 with LSI 22320-R SCSI HBA
2. Connect to Sun StorEdge 3310 array

Vs.
 
1. Load RHEL U3 with LSI 22320-R SCSI HBA
2. Connect to Sun StorEdge 3310 array

Both methods procude a problem, but the problems are different.  The problem with Update2 is fixable with the right Fusion MPT SCSI driver.  We have not found a solution to the problem with Update3 yet.

Actual Results:  With RHEL U2-
We see 4 times as many LUN's in an fdisk output than we should.  Until we put on the right driver, then it works.

With RHEL u3-
All we ever see is LUN 0 even when there are more LUN's that have been mapped to the SCSI channel.  Driver update does not fix.

Expected Results:  When the updated driver is installed on any of the update releases after U2 the problem should be fixed.

Additional info:

We are Sun's heterogeneous storage support team.  We handle all calls on behalf of Sun when one of their storage units is attached to any host running RedHat Linux, SUSE Linux, MS Windows, IBM AIX and HP-UX.
Sun sells RedHat Enterprise Linux as a supported OS with several of it's servers.  Sun OEM's LSI Logic's SCSI cards.
It would benefit all three companies- Sun, RedHat and LSI to find a solution to this problem.  We feel fairly certain the problem is with the driver from LSI Logic, but that does not explain why we can get RHEL3 U2 to work, but the later versions don't work.