7.1, mpt and slow writes

[Charles Sprickman]

On Sat, 31 Jan 2009, Gary Palmer wrote:

> On Sat, Jan 31, 2009 at 01:48:46AM -0500, Charles Sprickman wrote:
>> On Fri, 30 Jan 2009, Gary Palmer wrote:
>>
>>> On Thu, Jan 29, 2009 at 11:43:11PM -0500, Charles Sprickman wrote:
>>>
>>> [ snip ]
>>>
>>>> Any idea what happened to the sysctl?  Is there some other method to
>>>> verify the loader tunable took (other than testing the throughput)?
>>>
>>> Boot with -v.  If the loader tunable took effect, you should see
>>> "Enabling SATA WC on phy " instead of "Disabling SATA ..."
>>
>> Cool, it works then.  Why was the info removed from the sysctl mib?
>>
>> mpt0: Enabling SATA WC on phy 0
>> mpt0: Enabling SATA WC on phy 1
>>
>> Bonnie++ is showing me about 24MB/s writes and 70MB/s reads.
>>
>> Is any of this verbose stuff problematic?
>>
>> mpt0: No Handlers For Any Event Notify Frames. Event 0xa (ACK not required).
>> mpt0: No Handlers For Any Event Notify Frames. Event 0x16 (ACK not
>> required).
>> mpt0: No Handlers For Any Event Notify Frames. Event 0x12 (ACK not
>> required).
>> mpt0: No Handlers For Any Event Notify Frames. Event 0x12 (ACK not
>> required).
>> mpt0: No Handlers For Any Event Notify Frames. Event 0x16 (ACK not
>> required).
>> mpt0: No Handlers For Any Event Notify Frames. Event 0xb (ACK not required).
>>
>> And is any of this info found at boot-time accessible while the system is
>> running?
>
> Hi,
>
> Sorry, I can't answer your questions - all I did to find the
> boot -v information was to look in the kernel source code.  Grepping
> through the CVS history I don't actually see a point in CVS history
> where there was a sysctl MIB value for the SATA WC status, although I
> might be mistaken.  Perhaps you are remembering using kenv to get
> at hw.mpt.enable_sata_wc instead of sysctl?

That, my friend, is precisely the problem.  "kenv" didn't stick in my head 
because most of the FreeBSD-isms in my head still date back to 4.x.  I am 
behind the times...

Thanks for solving the mystery for me.

Charles

> Regards,
>
> Gary
>
>> mpt0:vol0(mpt0:0:0): Settings ( Hot-Plug-Spares High-Priority-ReSync )
>> mpt0:vol0(mpt0:0:0): Using Spare Pool: 0
>> mpt0:vol0(mpt0:0:0): 2 Members:
>>       (mpt0:1:32:0): Primary Online
>>       (mpt0:1:1:0): Secondary Online
>> mpt0:vol0(mpt0:0:0): RAID-1 - Optimal
>> mpt0:vol0(mpt0:0:0): Status ( Enabled )
>> (mpt0:vol0:1): Physical (mpt0:0:1:0), Pass-thru (mpt0:1:0:0)
>> (mpt0:vol0:1): Online
>> (mpt0:vol0:0): Physical (mpt0:0:32:0), Pass-thru (mpt0:1:1:0)
>> (mpt0:vol0:0): Online
>>
>> Thanks,
>>
>> Charles
>>
>> ps - would it kill Dell to make a damn ISO of a bootable media for RAID
>> controller firmware upgrades???  I don't even own anything with a floppy
>> drive anymore.
>>
>>> Regards,
>>>
>>> Gary
>>>
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>>
>>
>