Re: Fw: [Bugme-new] [Bug 3651] New: dell poweredge 4600 aacraidPERC 3/Di Container goes offline

[Mike Christie <mikenc@us.ibm.com>]

Mike Christie wrote:

> Brian King wrote:
> 
>>
>>
>> Christoph Hellwig wrote:
>>
>>> On Wed, Nov 24, 2004 at 07:59:04AM -0500, Salyzyn, Mark wrote:
>>>
>>>> I dropped Andrew Morton from the direct mail recipients.
>>>>
>>>> Thanks, made the change in my branch of the code. This adjustment will
>>>> probably never be submitted to MarkH since I use it only for debugging
>>>> purposes. However, would it be nice if the global scsi timeout could be
>>>> `user' adjustable?
>>>>
>>>> Not that I advocate it as readily accessible, since any storage device
>>>> that takes longer than ten seconds is in `trouble', and any timeout
>>>> longer than two minutes will no doubt cause servers to go offline on 
>>>> the
>>>> internet. Its purpose is only for troubleshooting.
>>>
>>>
>>>
>>>
>>> Yes, it would probably be nice to have a writeable timeout attribute for
>>> the scsi device.  Care to submit a patch?
>>
>>
>>
>> This already exists today.
>>
> 
> Is there any problems with that attr and drivers not being able to handle
> the timeouts someone sets in sysfs. I mean if in my slave_configure I set
> 60 secs becuase for some reason my HW takes this long no matter what, 
> someone
> can reset this to 5 or 1 sec and there are is chance for the lld to 
> override

Sorry, that should have been

"there is no chance"

> this if it is invalid. Is this just one of those things where we say
> only touch the timeout if you know what you are doing, or is it that the 
> lld
> should not have that power, or sometihng else?
>