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Re: [Xen-devel] [Xen-users] BLKTAP



2011/11/22 Michael A. Collins <mike.a.collins@xxxxxxxxxxx>:
> On 22.11.2011 01:56, Shriram Rajagopalan wrote:
>
>> eh? I dont think so. with drbd based backend for xen VMs (with or without
>> remus),
>> you just use the drbd:<resourceName> syntax (much like phy:...).
> The drbd:<resource> syntax works for xm, but not for xl.  I'll have to work

That's what I ended up with, too

>> With all that said and done, I’m currently running drbd 8.3.11 since
>> that’s the version of the kernel module included with Linux 3.1, but
>> I’m just using Xen’s phy handler for the disk section of my VM’s
>> cfg file.

wasn't there something in remus that demands you have a drbd: device
if you're not using blktap?

>> I see that there is a nice howto for debian on remusha.wikidot.com
>> [5], but again it uses a 2.6.32 kernel from Jeremy’s git repo, which
>> has the tap kernel module.  I again assert that currently there is
>> very little out there that would help to get someone started using
>> remus with drbd in the linux 3.1.x world.  I run remus at work, but
>> it’s using shared storage and have no need to use it with drbd, but
>> at home I don’t really want to set that up, so I thought drbd would
>> be a nice start.
>>
>>
>>
>> I’ve started diffing the 8.3.9 branch of drbd with your changes for
>> remus and will see how hard it is to get that in the 8.3.11 version
>>
>>>
>>> Is the remusified drbd (8.3.9) not compiling under the 3.1.x kernel
>>> anymore or are you interested in
>>> the latest version of DRBD + the remus stuff ?
>>>
>>>
>>> shriram
>
> I am interested in running the latest drbd changes with remus.  But I am
> interested in getting this to work through the xl interface more than
> anything.

Currently there's no alternate reality available in which one can run Remus?
blktap - not really there (and it would have other nice features)
dr:bd - doesn't play with xl
xm - not supposed to use that any more
older distros - will not take remus patches i guess
older howtos - broken since Remus is already part of Xen by now

(And I don't think it will get better by pointing at a workaround else
if one thing that should work isn't working.
Instead, soon, it will no longer work at all)

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