Re: [ovirt-users] oVirt 4.2 CEPH support

[Nir Soffer]

On Tue, Jan 9, 2018 at 12:33 AM ~Stack~  wrote:

> On 01/08/2018 07:15 AM, Gianluca Cecchi wrote:
> > Probably he refers to this blog:
> >
> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-live/
> >
> > with:
> > "
> > *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
> > certified as a storage domain for virtual machines. This provides more
> > infrastructure and deployment choices for engineers and architects.
> > "
> >
> > It seems a described feature that didn't get any referral in oVirt 4.2
> > release notes:
> > https://ovirt.org/release/4.2.0/
> >
> > But I think in general, given a version, it is not guaranteed that what
> > in RHEV maps with what in oVirt and viceversa.
> > I don't know if this one about Ceph via iSCSI is one of them.
>
> ErrrWHAA???
>
> If Ceph support is in oVirt, I am about to be extremely excited. I'm
> just racked the hardware for a new oVirt install today and the Ceph gear
> is showing up in a few weeks. I was planning on setting up a dedicated
> NFS server for VM's essentially having two storage domains, but if I can
> just have Ceph...I would be a very happy sys admin!
>

Ceph is supported since 3.6 via Cinder.

But the support is not complete, some features are not available with Ceph,
mainly integration with other storage types, like moving disks to/from Ceph
and other storage, live storage migration, image upload and download,
and vm leases.

But it may be good enough to keep you happy!

Nir


> ~Stack~
>
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Abdurrahman A. Ibrahim]

Thank you for the explanation. :)

Best regards,
Ab

On Tue, Jan 9, 2018 at 12:47 PM, Yaniv Kaul  wrote:

>
>
> On Mon, Jan 8, 2018 at 3:27 PM, Abdurrahman A. Ibrahim <
> a.rahman.at...@gmail.com> wrote:
>
>> Yup, Gianluca is right.
>> My bad to mention  RHV 4.2 Beta release notes instead of  CaptinKVM blog
>> post "https://www.ovirt.org/documentation/vmm-guide/chap-Addition
>> al_Configuration/"
>> """
>>
>>> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested
>>> and certified as a storage domain for virtual machines. This provides more
>>> infrastructure and deployment choices for engineers and architects.
>>
>> """
>>
>> Do we have any oVirt documentation mentioned that?
>>
>
> I'm afraid not. For oVirt, it's just another iSCSI target like any other
> iSCSI storage.
> Y.
>
>
>>
>> Best regards,
>> Ab
>>
>> On Mon, Jan 8, 2018 at 2:15 PM, Gianluca Cecchi <
>> gianluca.cec...@gmail.com> wrote:
>>
>>> On Mon, Jan 8, 2018 at 2:06 PM, Fred Rolland 
>>> wrote:
>>>
 Hi,

 Do you have a link about this information?

 Thanks,
 Freddy



>>>
>>> Probably he refers to this blog:
>>> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualizatio
>>> n-4-2-beta-is-live/
>>>
>>> with:
>>> "
>>> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested
>>> and certified as a storage domain for virtual machines. This provides more
>>> infrastructure and deployment choices for engineers and architects.
>>> "
>>>
>>> It seems a described feature that didn't get any referral in oVirt 4.2
>>> release notes:
>>> https://ovirt.org/release/4.2.0/
>>>
>>> But I think in general, given a version, it is not guaranteed that what
>>> in RHEV maps with what in oVirt and viceversa.
>>> I don't know if this one about Ceph via iSCSI is one of them.
>>> Gianluca
>>>
>>
>>
>>
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>> http://lists.ovirt.org/mailman/listinfo/users
>>
>>
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Luca 'remix_tj' Lorenzetto]

On Tue, Jan 9, 2018 at 2:45 PM, Matthias Leopold
 wrote:

> just for the records:
> we are running a productive oVirt 4.1 cluster with storage on a Ceph 12.2
> cluster connected as an external provider, type: Openstack Volume (= Cinder)
>

Yup, but that's different than using iSCSI, since you're using
directly qemu with librbd as storage module.

Luca


-- 
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)

"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)

Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , 
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Konstantin Shalygin]

if I can
just have Ceph...I would be a very happy sys admin!


What is stopped you from start use ceph via librbd NOW? All you need is 
a OpenStack Cinder as volume manager wrapper.


You can check librbd version of your hosts via oVirt manager (see 
attached sceenshot).




I read in RHV 4.2 Beta release note that CEPH will be supported using iSCSI.
I have tried to check community documentation regarding CEPH support but
there was no luck. Do we have such document?


This is just usual iSCSI

http://docs.ceph.com/docs/master/rbd/iscsi-overview/



k

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Re: [ovirt-users] oVirt 4.2 CEPH support

[Matthias Leopold]

Am 2018-01-08 um 23:32 schrieb ~Stack~:

On 01/08/2018 07:15 AM, Gianluca Cecchi wrote:

Probably he refers to this blog:
https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-live/

with:
"
*Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
certified as a storage domain for virtual machines. This provides more
infrastructure and deployment choices for engineers and architects.
"

It seems a described feature that didn't get any referral in oVirt 4.2
release notes:
https://ovirt.org/release/4.2.0/

But I think in general, given a version, it is not guaranteed that what
in RHEV maps with what in oVirt and viceversa.
I don't know if this one about Ceph via iSCSI is one of them.


ErrrWHAA???

If Ceph support is in oVirt, I am about to be extremely excited. I'm
just racked the hardware for a new oVirt install today and the Ceph gear
is showing up in a few weeks. I was planning on setting up a dedicated
NFS server for VM's essentially having two storage domains, but if I can
just have Ceph...I would be a very happy sys admin!

~Stack~



just for the records:
we are running a productive oVirt 4.1 cluster with storage on a Ceph 
12.2 cluster connected as an external provider, type: Openstack Volume 
(= Cinder)


Matthias











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Re: [ovirt-users] oVirt 4.2 CEPH support

[Yaniv Kaul]

On Mon, Jan 8, 2018 at 3:27 PM, Abdurrahman A. Ibrahim <
a.rahman.at...@gmail.com> wrote:

> Yup, Gianluca is right.
> My bad to mention  RHV 4.2 Beta release notes instead of  CaptinKVM blog
> post "https://www.ovirt.org/documentation/vmm-guide/chap-
> Additional_Configuration/"
> """
>
>> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
>> certified as a storage domain for virtual machines. This provides more
>> infrastructure and deployment choices for engineers and architects.
>
> """
>
> Do we have any oVirt documentation mentioned that?
>

I'm afraid not. For oVirt, it's just another iSCSI target like any other
iSCSI storage.
Y.


>
> Best regards,
> Ab
>
> On Mon, Jan 8, 2018 at 2:15 PM, Gianluca Cecchi  > wrote:
>
>> On Mon, Jan 8, 2018 at 2:06 PM, Fred Rolland  wrote:
>>
>>> Hi,
>>>
>>> Do you have a link about this information?
>>>
>>> Thanks,
>>> Freddy
>>>
>>>
>>>
>>
>> Probably he refers to this blog:
>> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualizatio
>> n-4-2-beta-is-live/
>>
>> with:
>> "
>> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
>> certified as a storage domain for virtual machines. This provides more
>> infrastructure and deployment choices for engineers and architects.
>> "
>>
>> It seems a described feature that didn't get any referral in oVirt 4.2
>> release notes:
>> https://ovirt.org/release/4.2.0/
>>
>> But I think in general, given a version, it is not guaranteed that what
>> in RHEV maps with what in oVirt and viceversa.
>> I don't know if this one about Ceph via iSCSI is one of them.
>> Gianluca
>>
>
>
>
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Abdurrahman A. Ibrahim]

Yup, Gianluca is right.
My bad to mention  RHV 4.2 Beta release notes instead of  CaptinKVM blog
post "
https://www.ovirt.org/documentation/vmm-guide/chap-Additional_Configuration/
"
"""

> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
> certified as a storage domain for virtual machines. This provides more
> infrastructure and deployment choices for engineers and architects.

"""

Do we have any oVirt documentation mentioned that?

Best regards,
Ab

On Mon, Jan 8, 2018 at 2:15 PM, Gianluca Cecchi 
wrote:

> On Mon, Jan 8, 2018 at 2:06 PM, Fred Rolland  wrote:
>
>> Hi,
>>
>> Do you have a link about this information?
>>
>> Thanks,
>> Freddy
>>
>>
>>
>
> Probably he refers to this blog:
> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-
> live/
>
> with:
> "
> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
> certified as a storage domain for virtual machines. This provides more
> infrastructure and deployment choices for engineers and architects.
> "
>
> It seems a described feature that didn't get any referral in oVirt 4.2
> release notes:
> https://ovirt.org/release/4.2.0/
>
> But I think in general, given a version, it is not guaranteed that what in
> RHEV maps with what in oVirt and viceversa.
> I don't know if this one about Ceph via iSCSI is one of them.
> Gianluca
>
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Luca 'remix_tj' Lorenzetto]

On Mon, Jan 8, 2018 at 2:15 PM, Gianluca Cecchi
 wrote:
> On Mon, Jan 8, 2018 at 2:06 PM, Fred Rolland  wrote:
>>
>> Hi,
>>
>> Do you have a link about this information?
>>
>> Thanks,
>> Freddy
>>
>>
>
>
> Probably he refers to this blog:
> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-live/
>
> with:
> "
> Support for Ceph via iSCSI – The Ceph iSCSI target has been tested and
> certified as a storage domain for virtual machines. This provides more
> infrastructure and deployment choices for engineers and architects.
> "
>
> It seems a described feature that didn't get any referral in oVirt 4.2
> release notes:
> https://ovirt.org/release/4.2.0/
>
> But I think in general, given a version, it is not guaranteed that what in
> RHEV maps with what in oVirt and viceversa.
> I don't know if this one about Ceph via iSCSI is one of them.


I suppose they have tested ceph iscsi gateway

http://docs.ceph.com/docs/master/rbd/iscsi-overview/

And they have certified as compatible.

I don't really know why it shouldn't but the certification means that
opening a SR to RH when using this setup will get the appropriate
help.

Luca

-- 
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
calcoli che potrebbero essere affidati a chiunque se si usassero delle
macchine"
Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716)

"Internet è la più grande biblioteca del mondo.
Ma il problema è che i libri sono tutti sparsi sul pavimento"
John Allen Paulos, Matematico (1945-vivente)

Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , 
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Re: [ovirt-users] oVirt 4.2 CEPH support

[~Stack~]

On 01/08/2018 07:15 AM, Gianluca Cecchi wrote:
> Probably he refers to this blog:
> https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-live/
> 
> with:
> "
> *Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
> certified as a storage domain for virtual machines. This provides more
> infrastructure and deployment choices for engineers and architects.
> "
> 
> It seems a described feature that didn't get any referral in oVirt 4.2
> release notes:
> https://ovirt.org/release/4.2.0/
> 
> But I think in general, given a version, it is not guaranteed that what
> in RHEV maps with what in oVirt and viceversa.
> I don't know if this one about Ceph via iSCSI is one of them.

ErrrWHAA???

If Ceph support is in oVirt, I am about to be extremely excited. I'm
just racked the hardware for a new oVirt install today and the Ceph gear
is showing up in a few weeks. I was planning on setting up a dedicated
NFS server for VM's essentially having two storage domains, but if I can
just have Ceph...I would be a very happy sys admin!

~Stack~



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Re: [ovirt-users] oVirt 4.2 CEPH support

[Gianluca Cecchi]

On Mon, Jan 8, 2018 at 2:06 PM, Fred Rolland  wrote:

> Hi,
>
> Do you have a link about this information?
>
> Thanks,
> Freddy
>
>
>

Probably he refers to this blog:
https://rhelblog.redhat.com/2018/01/04/red-hat-virtualization-4-2-beta-is-live/

with:
"
*Support for Ceph via iSCSI* – The Ceph iSCSI target has been tested and
certified as a storage domain for virtual machines. This provides more
infrastructure and deployment choices for engineers and architects.
"

It seems a described feature that didn't get any referral in oVirt 4.2
release notes:
https://ovirt.org/release/4.2.0/

But I think in general, given a version, it is not guaranteed that what in
RHEV maps with what in oVirt and viceversa.
I don't know if this one about Ceph via iSCSI is one of them.
Gianluca
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Re: [ovirt-users] oVirt 4.2 CEPH support

[Fred Rolland]

Hi,

Do you have a link about this information?

Thanks,
Freddy

On Sun, Jan 7, 2018 at 9:01 PM, Abdurrahman A. Ibrahim <
a.rahman.at...@gmail.com> wrote:

> Hello,
>
> I read in RHV 4.2 Beta release note that CEPH will be supported using
> iSCSI.
> I have tried to check community documentation regarding CEPH support but
> there was no luck. Do we have such document?
>
>
> Best regards,
> Ab
>
>
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>
>
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