svenvogel opened a new issue #4216:
URL: https://github.com/apache/cloudstack/issues/4216
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##### ISSUE TYPE
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* Bug Report
##### COMPONENT NAME
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~~~
Managed Storage
~~~
##### CLOUDSTACK VERSION
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branch.
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4.13, 4.14
~~~
##### CONFIGURATION
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advanced networking, etc. N/A otherwise
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##### OS / ENVIRONMENT
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##### SUMMARY
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We found a Bug into the PR #3819. Sometimes hypervisor (Linux, KVM) detect
the partitions on the attached disk. This leads to additional paths. Since we
only check the path of the disk in the XML of the virtual machine and compare
them with the "/dev/disk/by-path" we find additional paths.
```
lrwxrwxrwx. 1 root root 10 Jul 17 16:52
/dev/disk/by-path/ip-10.24.50.230:3260-iscsi-iqn.2010-01.com.solidfire:nhjj.root-1540.1750-lun-0
-> ../../sddm
lrwxrwxrwx. 1 root root 11 Jul 17 16:52
/dev/disk/by-path/ip-10.24.50.230:3260-iscsi-iqn.2010-01.com.solidfire:nhjj.root-1540.1750-lun-0-part1
-> ../../sddn1
```
```
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source
dev='/dev/disk/by-path/ip-10.24.50.230:3260-iscsi-iqn.2010-01.com.solidfire:nhjj.root-1540.1750-lun-0'/>
<backingStore/>
<target dev='vda' bus='virtio'/>
<serial>154b1f1d2c5d476cae31</serial>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05'
function='0x0'/>
</disk>
```
##### STEPS TO REPRODUCE
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test-case. Use Screenshots if accurate.
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~~~
1. use a managed storage like Solidfire
2. use "partprobe" to make partitions visible, look into "/dev/disk/by-path"
-> "-lun-0-part1"
3. start a virtual machine, or try to start them
4. wait for the cleanup job which kill the disk of the virtual machine
~~~
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##### EXPECTED RESULTS
<!-- What did you expect to happen when running the steps above? -->
~~~
dont look for other paths than the correct one in the XML, dont logout other
paths
~~~
##### ACTUAL RESULTS
<!-- What actually happened? -->
<!-- Paste verbatim command output between quotes below -->
~~~
logging out the disk from virtual machines they are running
~~~
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