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ASF GitHub Bot commented on CLOUDSTACK-9604: -------------------------------------------- Github user serg38 commented on the issue: https://github.com/apache/cloudstack/pull/1813 @borisstoyanov Can you also kick off vmware test in parallel? > Root disk resize support for VMware and XenServer > ------------------------------------------------- > > Key: CLOUDSTACK-9604 > URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9604 > Project: CloudStack > Issue Type: Improvement > Security Level: Public(Anyone can view this level - this is the > default.) > Reporter: Priyank Parihar > Assignee: Priyank Parihar > Attachments: 1.png, 2.png, 3.png > > > Currently the root size of an instance is locked to that of the template. > This creates unnecessary template duplicates, prevents the creation of a > market place, wastes time and disk space and generally makes work more > complicated. > Real life example - a small VPS provider might want to offer the following > sizes (in GB): > 10,20,40,80,160,240,320,480,620 > That's 9 offerings. > The template selection could look like this, including real disk space used: > Windows 2008 ~10GB > Windows 2008+Plesk ~15GB > Windows 2008+MSSQL ~15GB > Windows 2012 ~10GB > Windows 2012+Plesk ~15GB > Windows 2012+MSSQL ~15GB > CentOS ~1GB > CentOS+CPanel ~3GB > CentOS+Virtualmin ~3GB > CentOS+Zimbra ~3GB > CentOS+Docker ~2GB > Debian ~1GB > Ubuntu LTS ~1GB > In this case the total disk space used by templates will be 828 GB, that's > almost 1 TB. If your storage is expensive and limited SSD this can get > painful! > If the root resize feature is enabled we can reduce this to under 100 GB. > Specifications and Description > Administrators don't want to deploy duplicate OS templates of differing > sizes just to support different storage packages. Instead, the VM deployment > can accept a size for the root disk and adjust the template clone > accordingly. In addition, CloudStack already supports data disk resizing for > existing volumes, we can extend that functionality to resize existing root > disks. > As mentioned, we can leverage the existing design for resizing an existing > volume. The difference with root volumes is that we can't resize via disk > offering, therefore we need to verify that no disk offering was passed, just > a size. The existing enforcements of new size > existing size will still > server their purpose. > For deployment-based resize (ROOT volume size different from template > size), we pass the rootdisksize parameter when the existing code allocates > the root volume. In the process, we validate that the root disk size is > > existing template size, and non-zero. This will persist the root volume as > the desired size regardless of whether or not the VM is started on deploy. > Then hypervisor specific code needs to be made to pay attention to the > VolumeObjectTO's size attribute and use that when doing the work of cloning > from template, rather than inheriting the template's size. This can be > implemented one hypervisor at a time, and as such there needs to be a check > in UserVmManagerImpl to fail unsupported hypervisors with > InvalidParameterValueException when the rootdisksize is passed. > > Hypervisor specific changes > XenServer > Resize ROOT volume is only supported for stopped VMs > Newly created ROOT volume will be resized after clone from template > VMware > Resize ROOT volume is only supported for stopped VMs. > New size should be large then the previous size. > Newly created ROOT volume will be resized after clone from template iff > There is no root disk chaining.(means use Full clone) > And Root Disk controller setting is not IDE. > Previously created Root Volume could be resized iif > There is no root disk chaining. > And Root Disk controller setting is not IDE. > Web Services APIs > resizeVolume API call will not change, but it will accept volume UUIDs of > root volumes in id parameter for resizing. > deployVirtualMachine API call will allow new rootdisksize parameter to be > passed. This parameter will be used as the disk size (in GB) when cloning > from template. > UI > 1) (refer attached image 1) shows UI that resize volume option is added for > ROOT disks. > 2) (refer attached image 2) when user calls the resize volume on ROOT volume. > Here only size option is shown. For DATADISK disk offerings are shown. > 3) (refer attached image 3) when user deploys VM. New option for Root disk > size is added. -- This message was sent by Atlassian JIRA (v6.3.15#6346)