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https://issues.apache.org/jira/browse/CLOUDSTACK-6181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13925917#comment-13925917
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Marcus Sorensen commented on CLOUDSTACK-6181:
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I can't replicate the "volume must be in ready or allocated state" resize
issue, a stopped vm resizes for me just fine.
I also am not currently able to replicate passing a rootdisksize smaller than
templatesize and having it work. Here's a 2G template and I'm passing
rootdisksize=1
> deploy virtualmachine zoneid=8d209071-ed46-46a9-82a6-a5874ee5be6d
> templateid=31f52a4d-5681-43f7-8651-ad4aaf823618
> serviceofferingid=62179906-ad2c-4c76-b160-063e294ee960
> networkids=6ebe3113-f95d-418b-9742-26a42fe5ccc3 name=customroo
> details[0].rootdisksize=1 hypervisor=KVM
unsupported: rootdisksize override is smaller than template size 2147483648
So hopefully the debugging I put in will help us determine why these pop up in
your environment.
> Root resize
> -----------
>
> Key: CLOUDSTACK-6181
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-6181
> Project: CloudStack
> Issue Type: New Feature
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Hypervisor Controller, Storage Controller, UI
> Affects Versions: 4.4.0
> Environment: KVM/libvirt/CentOS, Xenserver
> Reporter: Nux
> Labels: disk, resize, template
> Fix For: 4.4.0
>
>
> Rationale:
> 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.
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