Open Stack

Regarding block migration, this is what confuses me. This is from the
Openstack operations manual

--
Theoretically live migration can be done with non-shared storage, using
a feature known as KVM live block migration. However, this is a littleknown
feature in OpenStack, with limited testing when compared to live migration,
and is slated for deprecation in KVM upstream.
--

Paras.


On Thu, Apr 18, 2013 at 3:00 AM, Razique Mahroua
<razique.mahroua at gmail.com>wrote:

> Sure :)
> Great feedbacks around. Many technologies do pretty much everything on the
> paper - but I guess in the end it's more about if the tech. does the job
> and if it does it well.
> For such critical implementation, reliable solution is a must-have - ie
> that have proven through years they can be used and are stable enough for
> us to enjoy our week-ends :)
>
> Razique
>
> Le 18 avr. 2013 à 00:14, Paras pradhan <pradhanparas at gmail.com> a écrit :
>
> Thanks for the replies Razique. We are doing a test installation and
> looking for options for live migration. Looks like both cinder and shared
> file stirage are options. Among these two which one do you guys recommended
> considering the Cinder block will be typical lvm based commodity hardware.
>
> Thanks
> Paras.
>
>
> On Wed, Apr 17, 2013 at 5:03 PM, Razique Mahroua <
> razique.mahroua at gmail.com> wrote:
>
>> Definitely, use the "--block_migrate" flag along the nova migrate command
>> so you don't need a shared storage.
>> You can boot from Cinder, depending on which version of OPS you run
>>
>> *Razique Mahroua** - **Nuage & Co*
>> razique.mahroua at gmail.com
>> Tel : +33 9 72 37 94 15
>>
>> <NUAGECO-LOGO-Fblan_petit.jpg>
>>
>> Le 17 avr. 2013 à 23:55, Paras pradhan <pradhanparas at gmail.com> a écrit :
>>
>> Can we do live migration without using shared storage like glusterfs and
>> using cinder to boot the volume from?
>>
>> Sorry little off topic
>>
>> Thanks
>> Paras.
>>
>>
>> On Wed, Apr 17, 2013 at 4:53 PM, Razique Mahroua <
>> razique.mahroua at gmail.com> wrote:
>>
>>> Many use either a proprietary backend or the good old LVM
>>> I'll go with Ceph for it since there is a native integration between
>>> cinder/ nova-volume and Ceph
>>>
>>> *Razique Mahroua** - **Nuage & Co*
>>> razique.mahroua at gmail.com
>>> Tel : +33 9 72 37 94 15
>>>
>>> <NUAGECO-LOGO-Fblan_petit.jpg>
>>>
>>> Le 17 avr. 2013 à 23:49, Paras pradhan <pradhanparas at gmail.com> a écrit
>>> :
>>>
>>> What do people use for cinder?
>>>
>>> Thanks
>>> Paras.
>>>
>>>
>>> On Wed, Apr 17, 2013 at 4:41 PM, Razique Mahroua <
>>> razique.mahroua at gmail.com> wrote:
>>>
>>>> I was about to use CephFS (Bobtail) but the I can't resize the
>>>> instances without having CephFS crashing.
>>>> I'm currently considering GlusterFS which not only provides great
>>>> performance, it's also pretty much easy to administer  :)
>>>>
>>>> Le 17 avr. 2013 à 22:07, JuanFra Rodriguez Cardoso <
>>>> juanfra.rodriguez.cardoso at gmail.com> a écrit :
>>>>
>>>> Glance and Nova with MooseFS.
>>>> Reliable, good performance and easy configuration.
>>>>
>>>> ---
>>>> JuanFra
>>>>
>>>>
>>>> 2013/4/17 Jacob Godin <jacobgodin at gmail.com>
>>>>
>>>>> Hi all,
>>>>>
>>>>> Just a quick survey for all of you running distributed file systems
>>>>> for nova-compute instance storage. What are you running? Why are you using
>>>>> that particular file system?
>>>>>
>>>>> We are currently running CephFS and chose it because we are already
>>>>> using Ceph for volume and image storage. It works great, except for
>>>>> snapshotting, where we see slow performance and high CPU load.
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> OpenStack-operators mailing list
>>>>> OpenStack-operators at lists.openstack.org
>>>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>>>>>
>>>>>
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>>>>
>>>>
>>>>
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>>>>
>>>>
>>>
>>>
>>
>>
>
>
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