Re: 3ware Raid controllers and 64bit Etch

The machines are using a 3ware 64 bit PCI Raid controller -
with 2 (or  
4 can't remember exactly).
They are in a 32bit PCI slot and the disks are SATA and
mirrored (2  
disks)
Unfortunately I don't know exactly which controller as I do
not have  
physical access to the machines.
(The machines are supplied by a hosting provider) - Is there
anyway to  
find out exactly which cards they
are from the OS?

Cheers

Andrew

On 11/01/2008, at 6:13 PM, Seth Mattinen wrote:

> Andrew Miehs wrote:
>> On 11/01/2008, at 2:43 PM, Andrew Miehs wrote:
>>> Dear List,
>>>
>>> I have been having data corruption problems for
the last two  
>>> months on 7 servers.
>>>
>>>
>>> After extensive testing, I have finally
narrowed the problem down  
>>> to Debian Etch 2.6.18-5 kernel
>>> with the 3ware PCI controller. The same machine
using the onboard  
>>> SATA controller does not
>>> corrupt data.
>> Just to make this clear - this is with 64bit
version of Etch - I  
>> have not tested the 32bit version
>> with the Raid controller.
>
> I've been using an 9650SE-8LPML in RAID 6 (with
battery) under 64bit  
> Etch without any problems. It's as heavily loaded as
bonded dual 100  
> can let it be. Although you didn't say what controller
and RAID  
> level you're using.

Dear List,

I have been having data corruption problems for the last two
months on  
7 servers.


After extensive testing, I have finally narrowed the problem
down to  
Debian Etch 2.6.18-5 kernel
with the 3ware PCI controller. The same machine using the
onboard SATA  
controller does not
corrupt data.

The machines would also hang occasionally - no errors
displayed on  
screen.

I upgraded to a 2.6.23-13 kernel.org kernel 24 hours ago,
and have not  
been able to reproduce
these problems since then - Previously it would take about
10 minutes  
for the problem to appear.

I could reproduce these problems by using a java program to
insert  
logs (30,000,000 records)
into a local postgres 8.2.5 database -

After this I would see
	"DETAIL:  Could not open file
"pg_clog/0495": No such file or  
directory."
type messages in my postgres logs.

I had also managed to corrupt my SVN repository - md5s of
the files no  
longer matched
what was in the SVN database... (svnadmin verfify
/path/to/repository)

Has anyone seen these problems?

Below - details as to my raid controller.

Regards

Andrew
---

03:05.0 RAID bus controller: 3ware Inc 7xxx/8xxx-series
PATA/SATA-RAID  
(rev 01)
	Subsystem: 3ware Inc 7xxx/8xxx-series PATA/SATA-RAID
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop-
ParErr-  
Stepping- SERR+ FastB2B-
	Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium
>TAbort-  
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (2250ns min), Cache Line Size: 64 bytes
	Interrupt: pin A routed to IRQ 22
	Region 0: I/O ports at e800 [size=16]
	Region 1: Memory at febffc00 (32-bit, non-prefetchable)
[size=16]
	Region 2: Memory at fe000000 (32-bit, non-prefetchable)
[size=8M]
	Expansion ROM at f0100000 [disabled] [size=64K]
	Capabilities: [40] Power Management version 1
		Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA  
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

On 11/01/2008, at 2:43 PM, Andrew Miehs wrote:

> Dear List,
>
> I have been having data corruption problems for the
last two months  
> on 7 servers.
>
>
> After extensive testing, I have finally narrowed the
problem down to  
> Debian Etch 2.6.18-5 kernel
> with the 3ware PCI controller. The same machine using
the onboard  
> SATA controller does not
> corrupt data.

Just to make this clear - this is with 64bit version of Etch
- I have  
not tested the 32bit version
with the Raid controller.

Andrew

Andrew Miehs wrote:
> 
> On 11/01/2008, at 2:43 PM, Andrew Miehs wrote:
> 
>> Dear List,
>>
>> I have been having data corruption problems for the
last two months on 
>> 7 servers.
>>
>>
>> After extensive testing, I have finally narrowed
the problem down to 
>> Debian Etch 2.6.18-5 kernel
>> with the 3ware PCI controller. The same machine
using the onboard SATA 
>> controller does not
>> corrupt data.
> 
> Just to make this clear - this is with 64bit version of
Etch - I have 
> not tested the 32bit version
> with the Raid controller.
> 

I've been using an 9650SE-8LPML in RAID 6 (with battery)
under 64bit 
Etch without any problems. It's as heavily loaded as bonded
dual 100 can 
let it be. Although you didn't say what controller and RAID
level you're 
using.

~Seth


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After searching the web...

Looks like it is a "3ware 8006-2LP" controller...

Andrew

On 11/01/2008, at 7:10 PM, Andrew Miehs wrote:

> The machines are using a 3ware 64 bit PCI Raid
controller - with 2  
> (or 4 can't remember exactly).
> They are in a 32bit PCI slot and the disks are SATA and
mirrored (2  
> disks)
> Unfortunately I don't know exactly which controller as
I do not have  
> physical access to the machines.
> (The machines are supplied by a hosting provider) - Is
there anyway  
> to find out exactly which cards they
> are from the OS?
>
> Cheers
>
> Andrew
>

tw_cli from the 3ware site.

Andrew Miehs wrote:
> After searching the web...
> 
> Looks like it is a "3ware 8006-2LP"
controller...
> 
> Andrew
> 
> On 11/01/2008, at 7:10 PM, Andrew Miehs wrote:
> 
>> The machines are using a 3ware 64 bit PCI Raid
controller - with 2 (or 
>> 4 can't remember exactly).
>> They are in a 32bit PCI slot and the disks are SATA
and mirrored (2 
>> disks)
>> Unfortunately I don't know exactly which controller
as I do not have 
>> physical access to the machines.
>> (The machines are supplied by a hosting provider) -
Is there anyway to 
>> find out exactly which cards they
>> are from the OS?
>>
>> Cheers
>>
>> Andrew
>>


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