Hello, The controllers in the 2850 and the 1850 are perc4/ei. However I do not know if they have the same PCI bridge chip as the Ultra-320-2X. The SCSI chip is an LSI 1030 which I believe is a pciX connection. There is also a Dobson on the motherboard that I believe connects over the PCIeX interface. I think the Dobson is related to the romb dimm. Thanks for the help, Joe -----Original Message----- From: Ju, Seokmann [mailto:Seokmann.Ju@xxxxxxxx] Sent: Monday, February 06, 2006 12:19 PM To: Joe Wilhelmi; Linux-scsi@xxxxxxxxxxxxxxx Subject: RE: Hang problem on Dell 1850 and 2850 using Perc megaraid controller Hi, > Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x > card with the same RAID 1 configuration with the same OS and version > of the driver. The hang did not occur. Can you elaborate which PERC4 controller are on both 1850 and 2850? Do both PERC4 controllers have PCI-X interface as MegaRAID SCSI-320-2X? > It seems that the issue is in some part of the MegaRAID driver that > deals specifically with the Perc cards in the 2850 and the 1850 and > not with the LSI MegaRAID cards. > > I need to mention that the kernel has been built with MSI and ACPI > disabled because of issues with our e1000 ethernet adapter. Because > ACPI was disabled, we also disabled hw_random. Snare is also built > in. > > The following are the relevant firmware versions: > Dell 1850 Perc Controller: H418 > Dell 2850 Perc Controller: H430 > Lsi Ultra-320-2X: H409 Thank you for detail descriptin on the issue. It will be duplicated and will update you as soon as possible. Thank you, > -----Original Message----- > From: linux-scsi-owner@xxxxxxxxxxxxxxx > [mailto:linux-scsi-owner@xxxxxxxxxxxxxxx] On Behalf Of Joe Wilhelmi > Sent: Monday, February 06, 2006 1:57 PM > To: Linux-scsi@xxxxxxxxxxxxxxx > Subject: Hang problem on Dell 1850 and 2850 using Perc > megaraid controller > > Friends of MegaRAID, > > I have been noticing a hang problem on my 1850 and 2850 systems when > using the Perc4 controllers in a RAID 1 configuration using > LSI_COMMON_MOD_VERSION 2.20.2.6 on the linux 2.6.14 kernel. I can > repeatedly reproduce the problem by copying about 580MB of data to the > disk from an NFS share. > > If I install my system in bios SCSI mode, which uses the LSI scsi > controller and fusion driver instead of MegaRAID, this issue goes > away: I can copy the 580MB of data without the hang. > > Also, I attempted to produce the problem using a MegaRAID SCSI-320-2x > card with the same RAID 1 configuration with the same OS and version > of the driver. The hang did not occur. > > It seems that the issue is in some part of the MegaRAID driver that > deals specifically with the Perc cards in the 2850 and the 1850 and > not with the LSI MegaRAID cards. > > I need to mention that the kernel has been built with MSI and ACPI > disabled because of issues with our e1000 ethernet adapter. Because > ACPI was disabled, we also disabled hw_random. Snare is also built > in. > > > The following are the relevant firmware versions: > Dell 1850 Perc Controller: H418 > Dell 2850 Perc Controller: H430 > Lsi Ultra-320-2X: H409 > > I appreciate any help or thoughts, > > Regards, > Joe Wilhelmi > RTLogic > > > - > : send the line "unsubscribe > linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
