Re: SCSI OP 2ah with too big sectors 2056 exceeds backend hw_max_sectors: 2048

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On Tue, 2013-12-10 at 13:39 +0100, Henrik Goldman wrote:
> > A quick work-around here is to increase FD_MAX_SECTORS to 4096 or 8192
> > (2MB or 4MB max request size), as with ESX you'll only be using 512
> > block_size, so this will be OK.
> >
> > I'm considering a couple of difference approaches here for a proper
> > solution, but changing FD_MAX_SECTOR to a larger value for 512
> > block_size should get you up and running.
> >
> 
> Thank you. We will try this and report back. The biggest issue is to
> have a permanent fix though.

The permanent fix will be functionally identical for the block_size=512
case as the recommended workaround.

>  I assume it needs to go through the
> entire kernel-development cycle before it really becomes mainstream.
> 

Nope, a bugfix like this can go into as soon as the subsystem maintainer
signs off on it.

> I assume that whenever we see this warning it means that the data
> wasn't really written to the array, correct?
> 

That is correct.

--nab

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