On 2013-01-23 14:55, Ruben S. Montero wrote:
Hi,
You can set cache if you are using the CLI, just create a disk
attachment file
with
DISK = [ IMAGE_ID = #{image_id}, TARGET = #{target}, CACHE=default ]
or
DISK = [ IMAGE_ID = #{image_id}, DEV_PREFIX = #{bus}, CACHE=default ]
OK, it works. But sunstone/self service portals are missing fields for
that to work.
and then use it for onevm attachdisk. I agree, that it should probably
honor the default in vmm_exec_kvm.conf.
I'm also for it to honor TEMPLATE/CACHE parameter from image.
The same would be good for VM templates, so I don't need to write CACHE
parameter into VM template.
Some images are volatiles, other could contain critical data.
Regards, Rolandas Naujikas
I've filled an issue to improve this...
http://dev.opennebula.org/issues/1737
Cheers
On Wed, Jan 23, 2013 at 1:07 PM, Rolandas Naujikas
<rolandas.nauji...@mif.vu.lt <mailto:rolandas.nauji...@mif.vu.lt>> wrote:
Hi,
I'm testing disks hotplug for kvm VMs and I found that there are no
way to setup cache mode for such disks. I tried to put CACHE="none"
to image template, but it is not used in attach_disk (tested with
"rm -f "$ATTACH_FILE"" commented out).
We have CACHE="none" default in vmm_exec_kvm.conf, because for
virtio disks it is fast. CACHE=default is about one order slower.
Regards, Rolandas Naujikas
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Ruben S. Montero, PhD
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OpenNebula - The Open Source Solution for Data Center Virtualization
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