1:20 p.m.
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Hi everyone,
We proposed some changes in how to query if an operating system supports ho=
tplug, then Itamar suggested that disk hotplugging and NIC hotplugging coul=
d be separated from each other. While it is pretty clear how to put info ab=
out NIC hotplugging in the osinfo, here are a few issues when trying to int=
roduce the same concept for disk hotplugging.
Some disk interfaces do not support hotplugging at all (like IDE), some of =
them support it in the x86_64, but not in the ppc64 architecture (like the =
VirtIO blk) and others support it in both architectures (like VirtIO SCSI).=
There is also a ppc64 specific controller called SPAPR VSCSI, which suppor=
ts it too.
So, how do you propose a syntax to cover all these cases?
I thought about something along the lines of:
os.{id}.devices.disk.hotpluggableInterfaces =3D VirtIO_SCSI, VirtIO
Thanks,
Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
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class=3D"WordSection1" <p
class=3D"MsoNormal"><span lang=3D"EN-US">Hi
everyone,<o:p></o:p></span><=
/p <p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US">We proposed some changes in how=
to query if an operating system supports hotplug, then Itamar suggested th=
at disk hotplugging and NIC hotplugging could be separated from each other.=
While it is pretty clear how to put
info about NIC hotplugging in the osinfo, here are a few issues when tryin=
g to introduce the same concept for disk
hotplugging.<o:p></o:p></span></p <p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US">Some disk interfaces do not sup=
port hotplugging at all (like IDE), some of them support it in the x86_64, =
but not in the ppc64 architecture (like the VirtIO blk) and others support =
it in both architectures (like VirtIO
SCSI). There is also a ppc64 specific controller called SPAPR VSCSI, which=
supports it too.<o:p></o:p></span></p <p
class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US">So, how do you propose a syntax=
to cover all these cases?<o:p></o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US">I thought about something along=
the lines of:<o:p></o:p></span></p <p
class=3D"MsoNormal"><span
lang=3D"EN-US">os.{id}.devices.disk.hotpluggab=
leInterfaces =3D VirtIO_SCSI, VirtIO<o:p></o:p></span></p <p class=3D"MsoNormal"><span
lang=3D"EN-US"><o:p> </o:p></span></p <p
class=3D"MsoNormal">Thanks,<o:p></o:p></p <p class=3D"MsoNormal">Leonardo Bianconi/Vitor
de Lima/Gustavo Pedrosa<o:p>=
</o:p></p </div </body
</html
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3:27 a.m.
On Tue 10 Sep 2013 09:20:32 PM IDT, Gustavo Frederico Temple Pedrosa
wrote:
Hi everyone,
We proposed some changes in how to query if an operating system
supports hotplug, then Itamar suggested that disk hotplugging and NIC
hotplugging could be separated from each other. While it is pretty
clear how to put info about NIC hotplugging in the osinfo, here are a
few issues when trying to introduce the same concept for disk hotplugging.
Some disk interfaces do not support hotplugging at all (like IDE),
some of them support it in the x86_64, but not in the ppc64
architecture (like the VirtIO blk) and others support it in both
architectures (like VirtIO SCSI). There is also a ppc64 specific
controller called SPAPR VSCSI, which supports it too.
So, how do you propose a syntax to cover all these cases?
I thought about something along the lines of:
os.{id}.devices.disk.hotpluggableInterfaces = VirtIO_SCSI, VirtIO
Thanks,
Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
"storage" is a better term than "disk" so:
os.{id}.devices.storage...
maybe in the future we may expand the metadata model to hold devices
and hook it to an OS
device.{id}....
os.{id}.devices={deviceId}
just a thought, its unnecessary for now.
4:06 a.m.
On 09/11/2013 11:27 AM, Roy Golan wrote:
On Tue 10 Sep 2013 09:20:32 PM IDT, Gustavo Frederico Temple Pedrosa
wrote:
> Hi everyone,
>
> We proposed some changes in how to query if an operating system
> supports hotplug, then Itamar suggested that disk hotplugging and NIC
> hotplugging could be separated from each other. While it is pretty
> clear how to put info about NIC hotplugging in the osinfo, here are a
> few issues when trying to introduce the same concept for disk
> hotplugging.
>
> Some disk interfaces do not support hotplugging at all (like IDE),
> some of them support it in the x86_64, but not in the ppc64
> architecture (like the VirtIO blk) and others support it in both
> architectures (like VirtIO SCSI). There is also a ppc64 specific
> controller called SPAPR VSCSI, which supports it too.
>
> So, how do you propose a syntax to cover all these cases?
>
> I thought about something along the lines of:
>
> os.{id}.devices.disk.hotpluggableInterfaces = VirtIO_SCSI, VirtIO
>
> Thanks,
>
> Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
>
"storage" is a better term than "disk" so:
why? this is about a vdisk, isn't it?
os.{id}.devices.storage...
maybe in the future we may expand the metadata model to hold devices and
hook it to an OS
device.{id}....
os.{id}.devices={deviceId}
just a thought, its unnecessary for now.
_______________________________________________
Engine-devel mailing list
Engine-devel(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/engine-devel
8:51 a.m.
On Wed 11 Sep 2013 12:06:40 PM IDT, Itamar Heim wrote:
On 09/11/2013 11:27 AM, Roy Golan wrote:
> On Tue 10 Sep 2013 09:20:32 PM IDT, Gustavo Frederico Temple Pedrosa
> wrote:
>> Hi everyone,
>>
>> We proposed some changes in how to query if an operating system
>> supports hotplug, then Itamar suggested that disk hotplugging and NIC
>> hotplugging could be separated from each other. While it is pretty
>> clear how to put info about NIC hotplugging in the osinfo, here are a
>> few issues when trying to introduce the same concept for disk
>> hotplugging.
>>
>> Some disk interfaces do not support hotplugging at all (like IDE),
>> some of them support it in the x86_64, but not in the ppc64
>> architecture (like the VirtIO blk) and others support it in both
>> architectures (like VirtIO SCSI). There is also a ppc64 specific
>> controller called SPAPR VSCSI, which supports it too.
>>
>> So, how do you propose a syntax to cover all these cases?
>>
>> I thought about something along the lines of:
>>
>> os.{id}.devices.disk.hotpluggableInterfaces = VirtIO_SCSI, VirtIO
>>
>> Thanks,
>>
>> Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
>>
>
> "storage" is a better term than "disk" so:
why? this is about a vdisk, isn't it?
well a vnic and vdisk are the building
blocks in the end. so either we
use vnic vdisk etc or storage,network etc for all
>
> os.{id}.devices.storage...
>
>
> maybe in the future we may expand the metadata model to hold devices and
> hook it to an OS
>
> device.{id}....
> os.{id}.devices={deviceId}
>
> just a thought, its unnecessary for now.
>
>
>
>
> _______________________________________________
> Engine-devel mailing list
> Engine-devel(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/engine-devel
9:16 a.m.
On 09/11/2013 04:51 PM, Roy Golan wrote:
On Wed 11 Sep 2013 12:06:40 PM IDT, Itamar Heim wrote:
> On 09/11/2013 11:27 AM, Roy Golan wrote:
>> On Tue 10 Sep 2013 09:20:32 PM IDT, Gustavo Frederico Temple Pedrosa
>> wrote:
>>> Hi everyone,
>>>
>>> We proposed some changes in how to query if an operating system
>>> supports hotplug, then Itamar suggested that disk hotplugging and NIC
>>> hotplugging could be separated from each other. While it is pretty
>>> clear how to put info about NIC hotplugging in the osinfo, here are a
>>> few issues when trying to introduce the same concept for disk
>>> hotplugging.
>>>
>>> Some disk interfaces do not support hotplugging at all (like IDE),
>>> some of them support it in the x86_64, but not in the ppc64
>>> architecture (like the VirtIO blk) and others support it in both
>>> architectures (like VirtIO SCSI). There is also a ppc64 specific
>>> controller called SPAPR VSCSI, which supports it too.
>>>
>>> So, how do you propose a syntax to cover all these cases?
>>>
>>> I thought about something along the lines of:
>>>
>>> os.{id}.devices.disk.hotpluggableInterfaces = VirtIO_SCSI, VirtIO
>>>
>>> Thanks,
>>>
>>> Leonardo Bianconi/Vitor de Lima/Gustavo Pedrosa
>>>
>>
>> "storage" is a better term than "disk" so:
>
> why? this is about a vdisk, isn't it?
well a vnic and vdisk are the building blocks in the end. so either we
use vnic vdisk etc or storage,network etc for all
we could have other "storage" things than disks?
>
>>
>> os.{id}.devices.storage...
>>
>>
>> maybe in the future we may expand the metadata model to hold devices and
>> hook it to an OS
>>
>> device.{id}....
>> os.{id}.devices={deviceId}
>>
>> just a thought, its unnecessary for now.
>>
>>
>>
>>
>> _______________________________________________
>> Engine-devel mailing list
>> Engine-devel(a)ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/engine-devel
>
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4 comments
3 participants
participants (3)
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Gustavo Frederico Temple Pedrosa -
Itamar Heim -
Roy Golan