Unable to create instance on PowerFlex storage (with smaller templates)

[sureshanaparti]

problem

Failed to create instance on PowerFlex storage (with small template).

Logs:

2025-06-06 08:42:33,934 DEBUG [o.a.c.s.d.d.ScaleIOPrimaryDataStoreDriver] (Work-Job-Executor-15:[ctx-63de2f90, job-74/job-75, ctx-be8ecd3c]) (logid:9262f7e6) createAsync - creating volume
2025-06-06 08:42:33,934 DEBUG [o.a.c.s.d.d.ScaleIOPrimaryDataStoreDriver] (Work-Job-Executor-15:[ctx-63de2f90, job-74/job-75, ctx-be8ecd3c]) (logid:9262f7e6) Creating PowerFlex volume
2025-06-06 08:42:33,935 WARN  [o.a.c.s.d.d.ScaleIOPrimaryDataStoreDriver] (Work-Job-Executor-15:[ctx-63de2f90, job-74/job-75, ctx-be8ecd3c]) (logid:9262f7e6) Unable to create PowerFlex Volume due to Size(GB) must be greater than 0
2025-06-06 08:42:33,935 ERROR [o.a.c.s.d.d.ScaleIOPrimaryDataStoreDriver] (Work-Job-Executor-15:[ctx-63de2f90, job-74/job-75, ctx-be8ecd3c]) (logid:9262f7e6) Unable to create PowerFlex Volume due to Size(GB) must be greater than 0
2025-06-06 08:42:33,941 DEBUG [o.a.c.s.v.VolumeServiceImpl] (Work-Job-Executor-15:[ctx-63de2f90, job-74/job-75, ctx-be8ecd3c]) (logid:9262f7e6) Failed to copy managed template on primary storage com.cloud.utils.exception.CloudRuntimeException: Creation of a volume failed: Unable to create PowerFlex Volume due to Size(GB) must be greater than 0
        at org.apache.cloudstack.storage.volume.VolumeServiceImpl.createManagedVolumeCopyManagedTemplateAsync(VolumeServiceImpl.java:1178)
        at org.apache.cloudstack.storage.volume.VolumeServiceImpl.createManagedVolumeCopyManagedTemplateAsyncWithLock(VolumeServiceImpl.java:1562)
        at org.apache.cloudstack.storage.volume.VolumeServiceImpl.createManagedStorageVolumeFromTemplateAsync(VolumeServiceImpl.java:1533)
        at org.apache.cloudstack.engine.orchestration.VolumeOrchestrator.recreateVolume(VolumeOrchestrator.java:1780)
        at org.apache.cloudstack.engine.orchestration.VolumeOrchestrator.prepare(VolumeOrchestrator.java:1944)

Also, noticed Storpool Adaptor call during cleanup and resulting in in NPE, which needs fix.

2025-06-06 08:45:49,621 DEBUG [c.c.a.t.Request] (AgentManager-Handler-19:[]) (logid:) Seq 1-4269412446747230759: Processing:  { Ans: , MgmtId: 32986389020927, via: 1, Ver: v1, Flags: 10, [{"com.cloud.agent.api.Answer":{"result":"false","details":"java.lang.NullPointerException: Cannot invoke "String.startsWith(String)" because "volumeUuid" is null
        at com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor.getVolumeNameFromPath(StorPoolStorageAdaptor.java:142)
        at com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor.attachOrDetachVolume(StorPoolStorageAdaptor.java:152)
        at com.cloud.hypervisor.kvm.storage.StorPoolStorageAdaptor.disconnectPhysicalDisk(StorPoolStorageAdaptor.java:271)
        at com.cloud.hypervisor.kvm.storage.KVMStoragePoolManager.disconnectPhysicalDisk(KVMStoragePoolManager.java:221)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.cleanupDisk(LibvirtComputingResource.java:3452)
        at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStopCommandWrapper.execute(LibvirtStopCommandWrapper.java:112)
        at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtStopCommandWrapper.execute(LibvirtStopCommandWrapper.java:47)
        at com.cloud.hypervisor.kvm.resource.wrapper.LibvirtRequestWrapper.execute(LibvirtRequestWrapper.java:78)
        at com.cloud.hypervisor.kvm.resource.LibvirtComputingResource.executeRequest(LibvirtComputingResource.java:1958)
        at com.cloud.agent.Agent.processRequest(Agent.java:779)

versions

CS 4.20.x + KVM + Dell PowerFlex storage

The steps to reproduce the bug

1. Add PowerFlex pool as primary storage using tag 'powerflex'
2. Register template with small size, eg. macchinina here: http://dl.openvm.eu/cloudstack/macchinina/x86_64/macchinina-kvm.qcow2.bz2
3. Create a Service/Compute Offering with storage tag 'powerflex'
4. Create instance using the above register template when it is ready and service offering

What to do about it?

Expected: Should be able to create instances using smaller templates on PowerFlex storage.

[weizhouapache]

@sureshanaparti
which ACS version ?
it seems like a blocker

[sureshanaparti]

@sureshanaparti which ACS version ? it seems like a blocker

noticed in 4.20.1 RC3. I think, it exists before as well.

[DaanHoogland]

@sureshanaparti @weizhouapache is this really a blocker? do we know of any users hindered by this (other than cloud developers using ridiculous small templates)

[sureshanaparti]

@sureshanaparti @weizhouapache is this really a blocker? do we know of any users hindered by this (other than cloud developers using ridiculous small templates)

@DaanHoogland it's regression due to #9008, only effects PowerFlex users. They wouldn't be able to create instances with smaller templates (< 1 GB). Fix PR is ready, so better include it.