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SubjectRe: 3Ware Hard Bus Hang 2.4.18 > 220 MB/S


Problem seems specific to the SuperMicro motherboard + 3Ware.

Jeff

On Mon, Mar 04, 2002 at 06:06:20PM +0100, Harald van Pee wrote:
> Hi,
>
> because I am planning to buy a very similar system, I would like to know:
> - is this problem solved in the meantime?
> - does it also occure with older kernels (2.4.16, 2.2.16) or older firmware
> (and smaler disks)?
> - is it only a problem of high transfer rates and does not occure on lower ~
> 150 MB/sec or 30 MB/sec?
>
> Thanks for your help
> Harald
>
> On Wed, Feb 27, 2002 at 10:25:45AM -0700, Jeff V. Merkey wrote:
> >
> More info. I put in some trace code to determine how many io buffer
> heads were being fed to each adapter. When the number of bh's reaches
> numbers above 4244+- buffer heads outstanding at one time, then I see the
> cards lockup.
> Jeff
> >
> >
> > Running 4 3Ware 7810 Adapters with the updated 48 bit LBA firmware
> > for the 78110, and attached to 8 Maxtor 160 GB hard disks on each card
> > (32 drives total) striping Raid 0m across 5.6 terabytes of disk, I am
> > seeing about 216-224 MB/S total throughput on writes to local
> > arrays on 2.4.18.
> >
> > The system is also running an Intel Gigabit Ethernet Card at
> > 116-122 MB/S with full network traffic and writing this traffic to
> > the 3Ware arrays. All this hardware is running on a Serverworks
> > HE chipset with a SuperMicro motherboard and dual 933 Mhz PIII
> > processors.
> >
> > After running for about 3 hours, the system will hard hang and die.
> > Using debugging tools, I have isolated to the hang to the 3Ware
> > adapters. If I remove all but a single 3Ware adapter, the system will
> > run reliably for days at these data rates. The moment I add more
> > than one 3Ware 7810 adapter, the system will lock up. Recent testing
> > reveals that the hang is in the 3Ware card itself (all the LEDs go
> > on at once and stay on). Attempts by the system to reset the adapter
> > fail until the system is power cycled.
> >
> > 3Ware dfriver version is .16 from the 2.4.18 tree. Firmware is the 48 bit
> > LBA version.
> >
> > Please advise.
> >
> > Jeff
> -
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