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https://issues.apache.org/jira/browse/CLOUDSTACK-3367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766393#comment-13766393
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Koushik Das commented on CLOUDSTACK-3367:
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In XS 6.2 I simulated SR failure by disconnecting it. After that tried shutting
down the VM, the operation succeeded and the VMs power state was made 'halted'.
It even allowed destroying the 'halted' VM.
So looks like in XS 6.2 selective cleanup of VMs can be done instead of
rebooting host. But in older versions of XS there is no way to do selective
cleanup.
> When one primary storage fails, all XenServer hosts get rebooted, killing all
> VMs, even those not on this primary storage.
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: CLOUDSTACK-3367
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3367
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Components: Management Server, XenServer
> Affects Versions: 4.1.0, 4.2.0
> Environment: CentOS 6.3, XenServer 6.0.2 + all hotfixes, CloudStack
> 4.1.0
> Reporter: France
> Fix For: Future
>
>
> As the title says: if only one of the primary storages fails, all XenServer
> hosts get rebooted one by one. Because i have many primary storages, which
> are/were running fine with other VMs, rebooting XenServer Hipervisor is an
> overkill. Please disable this or implement just stopping/killing the VMs
> running on that storage and try to re-attach that storage only.
> Problem was reported on the mailing list, as well as a workaround for
> XenServer. So i'm not the only one hit by this "bug/feature". Workaround for
> now is as follows:
> 1. Modify /opt/xensource/bin/xenheartbeat.sh on all your Hosts, commenting
> out the two entries which have "reboot -f"
> 2. Identify the PID of the script - pidof -x xenheartbeat.sh
> 3. Restart the Script - kill <pid>
> 4. Force reconnect Host from the UI, the script will then re-launch on
> reconnect
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