[Openstack] Cinder iscsi performance

Ivan Kolodyazhny e0ne at e0ne.info
Fri Jan 12 16:10:41 UTC 2018


Hi Jim,

What target driver do you use? LIO should be faster than a default tgtd.

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

On Fri, Jan 12, 2018 at 4:27 PM, Jimmy Colestock <jcolestock at gmail.com>
wrote:

> Hello All,
>
> Fighting an issue with cinder iscsi performance being much slow than local
> ephemeral disk.  We’re running multi-path with dual 10Gb nic, offloading is
> working and bandwidth across the links is minimal.   I’ve looked at kernel
> schedulers in the VM’s and tried them all.
>
> I still need to dig into the storage side (3Par), but just curious if
> anyone has any suggestions while I keep troubleshooting.
>
> Thanks for any help.
>
> JC
>
>
> Jim Colestock
> jcolestock at gmail.com
> https://www.linkedin.com/in/jcolestock/
>
>
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