x/development-proposals
Code Issues Proposed changes

Merge "improve description of Recovery from host failure"

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2016-06-06 14:40:23 +00:00
committed by Gerrit Code Review
parent 196c19c44f 779df76cb9
commit f40dc35c79
1 changed files with 7 additions and 5 deletions
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12
user-stories/proposed/ha_vm.rst
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@@ -89,12 +89,14 @@ Usage Scenario Examples
* Hypervisor host is down
Monitor the hypervisor host. Detect hypervisor host failure and evacuate
all VMs from failed host. Restart the VMs on new hosts that enable an
Monitor the hypervisor host. When failure is detected, resurrect
all VMs from the failed host onto new hosts that enable an
application workload to resume a process if the VM state is stored in a
volume even though it loses the state on memory. A shared storage can be
used for instance volume as these volumes survive outside the hypervisors
host.
volume even though it loses the state on memory. If shared storage is used
for instance volumes, these volumes survive outside the failed hypervisor
host. However this is not required. If shared storage is not available,
the instance VMs will be automatically rebuilt from their original image, as
per standard nova evacuate behaviour.
* Recovery from network failure