[openstack-dev] [cinder] about block device driver

Ivan Kolodyazhny e0ne at e0ne.info
Tue Jul 17 08:09:47 UTC 2018


Rambo,

Did you try to use LVM+LIO target driver? It shows pretty good performance
comparing to BlockDeviceDriver,

Regards,
Ivan Kolodyazhny,
http://blog.e0ne.info/

On Tue, Jul 17, 2018 at 10:24 AM, Rambo <lijie at unitedstack.com> wrote:

> Oh,the instances using Cinder perform intense I/O, thus iSCSI or LVM is
> not a viable option - benchmarked them several times, unsatisfactory
> results.Sometimes it's IOPS is twice as bad,could you show me your test
> data?Thank you!
>
>
>
> Cheers,
> Rambo
>
>
> ------------------ Original ------------------
> *From:* "Sean McGinnis";
> *Date:* 2018年7月16日(星期一) 晚上9:32
> *To:* "OpenStack Developmen";
> *Subject:* Re: [openstack-dev] [cinder] about block device driver
>
> On Mon, Jul 16, 2018 at 01:32:26PM +0200, Gorka Eguileor wrote:
> > On 16/07, Rambo wrote:
> > > Well,in my opinion,the BlockDeviceDriver is more suitable than any
> other solution for data processing scenarios.Does the community will agree
> to merge the BlockDeviceDriver to the Cinder repository again if our
> company hold the maintainer and CI?
> > >
> >
> > Hi,
> >
> > I'm sure the community will be happy to merge the driver back into the
> > repository.
> >
>
> The other reason for its removal was its inability to meet the minimum
> feature
> set required for Cinder drivers along with benchmarks showing the LVM and
> iSCSI
> driver could be tweaked to have similar or better performance.
>
> The other option would be to not use Cinder volumes so you just use local
> storage on your compute nodes.
>
> Readding the block device driver is not likely an option.
>
> __________________________________________________________________________
> OpenStack Development Mailing List (not for usage questions)
> Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
> __________________________________________________________________________
> OpenStack Development Mailing List (not for usage questions)
> Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20180717/b8e5f932/attachment.html>


More information about the OpenStack-dev mailing list