On Mon, May 14, 2018 at 12:15 AM, Marc Schöchlin wrote:
> Hello Jason,
>
> many thanks for your informative response!
>
> Am 11.05.2018 um 17:02 schrieb Jason Dillaman:
>> I cannot speak for Xen, but in general IO to a block device will hit
>> the pagecache unless the IO operation is flagged as di
Hello Jason,
many thanks for your informative response!
Am 11.05.2018 um 17:02 schrieb Jason Dillaman:
> I cannot speak for Xen, but in general IO to a block device will hit
> the pagecache unless the IO operation is flagged as direct (e.g.
> O_DIRECT) to bypass the pagecache and directly send it
On Fri, May 11, 2018 at 3:59 AM, Marc Schöchlin wrote:
> Hello Jason,
>
> thanks for your response.
>
>
> Am 10.05.2018 um 21:18 schrieb Jason Dillaman:
>
> If i configure caches like described at
> http://docs.ceph.com/docs/luminous/rbd/rbd-config-ref/, are there dedicated
> caches per rbd-nbd/kr
Hello Jason,
thanks for your response.
Am 10.05.2018 um 21:18 schrieb Jason Dillaman:
>> If i configure caches like described at
>> http://docs.ceph.com/docs/luminous/rbd/rbd-config-ref/, are there dedicated
>> caches per rbd-nbd/krbd device or is there a only a single cache area.
> The librbd
On Thu, May 10, 2018 at 12:03 PM, Marc Schöchlin wrote:
> Hello list,
>
> i map ~30 rbds per xenserver host by using rbd-nbd to run virtual machines
> on these devices.
>
> I have the following questions:
>
> Is it possible to use rbd cache for rbd-nbd? I assume that this is true, but
> the docum
