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Posted to dev@cloudstack.apache.org by GitBox <gi...@apache.org> on 2020/10/13 09:07:56 UTC
[GitHub] [cloudstack-documentation] DaanHoogland commented on a change in pull request #162: Configure Root disk size via Service Offering
DaanHoogland commented on a change in pull request #162:
URL: https://github.com/apache/cloudstack-documentation/pull/162#discussion_r503790186
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File path: source/adminguide/storage.rst
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@@ -617,6 +617,34 @@ To resize a volume:
#. Click OK.
+Root Volume size defined via Service Offering
+~~~~~~~~~~~~~~~~
+
+If a Service Offering is created with a root disk size, then resizing the Root volume is possible only by resizing the VMs service offering.
+
+Service offering Root resizing constrains:
+#. Users cannot deploy VMs with custom root disk size when using such offerings
+#. Users cannot resize the VM root disk size when using such offerings
+#. The Root Volume of such VMs can only be resized when changing to another Service Offering with a Root disk size equals or larger than the current one.
+#. Users can change the VM offering to a service offering with a Root size of 0GB (default) and then customize the volume size.
+
+The following table shows possible combinations of Service offering supported resizing based on the offering Root disk size:
+
++---+----------------------------+---------------------------+-------------------------------+
+| # | Service Offering Root size | new Service Offering Root | Does support offering resize? |
++---+----------------------------+---------------------------+-------------------------------+
+| 1 | 0GB (default) | Any | YES |
++---+----------------------------+---------------------------+-------------------------------+
+| 2 | 5GB | 5GB | YES |
++---+----------------------------+---------------------------+-------------------------------+
+| 3 | 5GB | 10GB | YES |
++---+----------------------------+---------------------------+-------------------------------+
+| 4 | 10GB | 5GB | NO |
++---+----------------------------+---------------------------+-------------------------------+
+| 5 | Any | 0GB | YES |
Review comment:
as you state below that shrinking is not supported, I think an extra remark on this line is in order. It certainly implies that shrinking is allowed.
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