8:07 a.m.
I'm doing an experiment in which I need to attack an extra 512MB disk for a VM. But
from oVirt open virtualization manager it seems that the smallest disk can be added to VM
in oVirt is 1GB? So does it exist any means to easily add an 512MB disk for an VM in
oVirt?
8:55 a.m.
בתאריך 3 בנוב׳ 2015 3:12 אחה״צ, "zhukaijie" <kjzhu14(a)is.ac.cn> כתב:
I'm doing an experiment in which I need to attack an extra 512MB disk for
a VM.
But from oVirt open virtualization manager it seems that the smallest
disk can be added to VM in oVirt is 1GB? So does it exist any means to
easily add an 512MB disk for an VM in oVirt?
It is possible via vdsm api, but it is not exposed via engine or vdsClient.
Why creating 1g disk will not work? Nobody forces the guest os to use the
whole disk.
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9:10 a.m.
On 11/03/2015 02:07 PM, zhukaijie wrote:
I'm doing an experiment in which I need to attack an extra 512MB
disk for a VM. But from oVirt open virtualization manager it seems that the smallest disk
can be added to VM in oVirt is 1GB? So does it exist any means to easily add an 512MB disk
for an VM in oVirt?
You may want to try the RESTAPI, for example with a simple shell script:
---8<---
#!/bin/sh -ex
url="https://engine.example.com/ovirt-engine/api"
user="admin@internal"
password="..."
vm_id="bdbb5dcf-8a60-481d-8705-93b3dbbead55"
disk_size="$((512 * 2**20))"
curl \
--verbose \
--cacert /etc/pki/ovirt-engine/ca.pem \
--request POST \
--user "${user}:${password}" \
--header "Accept: application/xml" \
--header "Content-Type: application/xml" \
--data "
<disk>
<interface>virtio</interface>
<format>raw</format>
<provisioned_size>${disk_size}</provisioned_size>
<storage_domains>
<storage_domain>
<name>mydata</name>
</storage_domain>
</storage_domains>
</disk>
" \
"${url}/vms/${vm_id}/disks"
--->8---
Or if you prefer Python:
---8<---
#!/usr/bin/python
from ovirtsdk.api import API
from ovirtsdk.xml import params
# Connect to the server:
api = API(
url="https://engine.example.com/ovirt-engine/api";,
username="admin@internal",
password="...",
ca_file="/etc/pki/ovirt-engine/ca.pem",
debug=False
)
# Find the VMs:
vm = api.vms.get(name="myvm")
# Add the disk:
api.disks.add(
params.Disk(
interface="virtio",
format="raw",
provisioned_size=512 * 2**20,
storage_domains=params.StorageDomains(
storage_domain=[
params.StorageDomain(
name="mydata"
)
]
)
)
)
# Close the connection:
api.disconnect()
--->8---
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2 comments
3 participants
participants (3)
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Juan Hernández -
Nir Soffer -
zhukaijie