Re: [Xen-devel] [Drbd-dev] [PATCH] block-drbd: type is "phy" for drbd backends

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On 26/02/14 17:30, Lars Ellenberg wrote:
> On Wed, Feb 26, 2014 at 04:18:50PM +0100, Roger Pau Monné wrote:
>>
>> I've realized I haven't Cc'ed the drbd developers lists, so adding it now.
> 
> We do read the user's list just as well.
> Our -dev is actually mainly intended for "coordination".
> 
>> On 20/02/14 16:59, Roger Pau Monne wrote:
>>> The type written to xenstore by libxl when attaching a drbd backend is
>>> "phy", not "drbd", so handle this case also.
> 
> If you say so; you should know ;-)
> Did this change at some point?

I'm sure libxl (the new Xen toolstack) uses "phy" and not "drbd" as
type. Probably the old xend toolstack was setting type to "drbd", and
that's why the script checked for drbd.

IMHO, setting the type to phy is the right thing to do, since drbd ends
up presenting a block device which is handled by blkback.

> I personally have not used this script in a long while...
> 
> Do you ("citrix") have this in some
> regression/integration testing yourself?

Not in Xen OSS Test suite [0], although I have no idea if other products
based on Xen perform any kind of tests with drbd.

[0] http://xenbits.xen.org/gitweb/?p=osstest.git;a=summary

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