Re: [PATCH 0/3] target: user configurable T10 Vendor ID

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On Wed, 30 Sep 2015 10:49:42 -0700, Andy Grover wrote:

> > Sure we could make this a compile-time option, but that would require
> > everyone building a storage appliance to recompile the module/kernel.
> > Which is not what we as an OS vendor would want.
> > (And I guess RH will have the same opinion wrt rebuilding kernel modules
> > ...)  
> 
> Ah, true.
> 
> And, having it in configfs means userspace can read it easily.
> 
> Do we need to worry about what happens if vendor id changes at runtime, 
> for already-exported luns? Or can we just assume nobody would try that?

Like the VPD Unit Serial, changes to the vendor id are blocked while the
device is exported by a TPG.

> Would there be any benefit in making this a per-target, per-tpg, or 
> per-lun attribute? (I can't think of any but wanted to raise the question.)

My preference would be to keep it per-device, given that many of the
other INQUIRY fields can be configured in a similar way.

Thanks for the feedback Andy.

Cheers, David
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