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Extending Dell Technologies Cloud Platform Availability for Mission Critical Applications

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Testing methodology
Test scenarios Test configurations Test case details

Test case details

Test case details

  • Functional verification testing

    This testing addresses the basic operations that are performed when PowerMax is used as supplementary storage with VMware VCF on VxRail. The following table describes the test cases and the expected results:

    Table 6.              Functional verification testing

    Number

    Test case

    Expected result

    1

    PowerMax SRDF/Metro LUN provision to servers of workload domain

    PowerMax SRDF/Metro LUN can be used for supplementary storage to VI workload domain

    2

    VMFS5\6 creation on PowerMax SRDF/Metro LUN over 2 TB

    Both VMFS5 and VMFS6 datastores are verified on PowerMax SRDF/Metro devices. They all can be read and written to in the VxRail stretched cluster

    3

    VM deployment, Power On\Off & Suspend\Resume on PowerMax SRDF/Metro LUN

    VM can be deployed on PowerMax SRDF/Metro devices in VI workload domain and all VM operations work properly

    4

    VM snapshot create and revert and delete on PowerMax SRDF/Metro LUN

    The operation on VM snapshot works well on PowerMax SRDF/Metro device on VI workload domain

    5

    VM clone on PowerMax SRDF/Metro LUN

    Clone VMs which are running I/O on PowerMax. SRDF/Metro device works correctly

    6

    VM (newly created and workload domain-initiated NSX appliance) can perform storage migration bidirectionally between PowerMax SRDF/Metro LUN

    VM storage migration works on both the primary storage and supplementary storage of VI the workload domain

    7

    LUN hot add/remove with PowerMax SRDF/Metro LUN to workload domain cluster node

    PowerMax SRDF/Metro devices can be hot added and removed in VI workload domain

    Note: The SRDF group is required to be suspended before you add or remove a device on the existing SRDF group. There is no I/O interruption on PowerMax SRDF/Metro uniform configuration. The I/O on AZ2 is interrupted on PowerMax SRDF/Metro nonuniform configuration.

    8

    Online device expansion on PowerMax SRDF/Metro LUN in workload domain

    Perform online device expansion on any PowerMax site. All sites of PowerMax/SRDF devices can be updated simultaneously.

    9

    VM migration in workload domain cluster on PowerMax SRDF/Metro

    VM migration within the datastore which is supplementary to the VI workload domain,

    High availability testing

    HA testing helps validate the capability of the solution to avoid a single point of failure from the hardware component port level up to the IDC site level. The following table describes the HA testing that we performed:

    Table 7.              High availability testing

    Number

    Test case

    Expected result

    1

    Maintenance work for management domain level HA protection

    The VCF on VxRail stretch cluster keeps working without any interruption.

    2

    Host side HBA port failure triggered I/O path failover

    Host FC/iSCSI connection is partly failed. There is no I/O interruption in such a condition.

    3

    Storage-side service processor port failure triggered I/O path failover

    One PowerMax director is in failure. The I/O does not interrupt because FC zoning and storage provision were also performed on different PowerMax directors to provide a failover path.

    4

    Storage firmware NDU

    No I/O interruption during the storage firmware upgrade.

    5

    VCF Stretch Cluster-WLD AZ1 host unplanned failure triggered HA protection

    The powered-on VMs on the AZ1 host can be restarted on the AZ2 host.

     

    The powered-on VMs on AZ2 keep running with no I/O interruption.

    6

    Network failure between WLD AZ1 hosts and AZ2 hosts

    The AZ1 and AZ2 network isolation does not impact the I/O running on a VI workload domain with PowerMax SRDF/Metro.

    7

    PowerMax SRDF/Metro: unplanned failure on one of the PowerMax nodes (R1 or R2)

    While one PowerMax is dead:

    - For vMSC uniform configuration: no I/O interruption while one PowerMax is down.

    - For vMSC nonuniform configuration: the VMs on the surviving PowerMax continue to run without interruption, the VMs on the dead PowerMax restart on the surviving side with VMware HA PDL enabled after the PowerMax is online, all PowerMax SRDF/Metro devices path are active, and VMs can be migrated between AZ1 and AZ2.

    8

    PowerMax SRDF/Metro feature test for interlink break triggered VM level HA protection

    For uniform vMSC configuration: no I/O interruption on both AZ1 and AZ2.

    For nonuniform vMSC configuration: VMs on AZ2 that connect to PowerMax R2 are restarted on AZ1 and connected to PowerMax R1 when HA PDL is enabled on the VI workload domain.

    Reliability testing

    In general, reliability testing validates whether the components and the whole system are reliable enough with a certain level of stress running on them. 

    Table 8.              Reliability testing

    Number

    Test case

    Expected result

    1

    Scale testing for more than 100 VMs operating simultaneously on PowerMax SRDF/Metro LUNs attached to the workload domain

    All VM power-on operations can be successfully run simultaneously.

    2

    Scale testing for long-time stress I/O running in all VMs

    Continually running I/O for more than 24 hours without error

    Table 9.              Test results for FC

    Number

    Test case

    FC uniform with NMP

    FC nonuniform with PPVE7.0

    1

    PowerMax SRDF/Metro LUN provision to servers of workload domain

    Pass

    Pass

    2

    VMFS5\6 creation on PowerMax SRDF/Metro LUN over 2 TB

    Pass

    Pass

    3

    VM deployment, Power On\Off, and Suspend\Resume on PowerMax SRDF/Metro LUN

    Pass

    Pass

    4

    VM snapshot create and revert and delete on PowerMax SRDF/Metro LUN

    Pass

    Pass

    5

    VM clone on PowerMax SRDF/Metro LUN

    Pass

    Pass

    6

    VM (newly created and workload domain initiated NSX appliance) can do storage migration bidirectionally between PowerMax SRDF/Metro LUN

    Pass

    Pass

    7

    LUN hot add/remove with PowerMax SRDF/Metro LUN to workload domain cluster node

    Pass

    Pass

    8

    Online device expansion on PowerMax SRDF/Metro LUN in workload domain

    Pass

    Pass

    9

    VM migration in workload domain cluster on PowerMax SRDF/Metro

    Pass

    Pass

    10

    Host-side HBA port failure triggered I/O path failover

    Pass

    Pass

    11

    Storage-side SP port failure triggered I/O path failover

    Pass.

    Pass

    12

    Storage firmware NDU

    Pass

    Pass

    13

    PowerMax SRDF/Metro feature test for interlink break triggered VM level HA protection

    Pass

    Pass

    14

    Scale testing for more than 100 VMs operating simultaneously on PowerMax SRDF/Metro LUNs attached to workload domain

    Pass

    Pass

    15

    Scale testing for long time stress I/O running in all VMs

    Pass

    Pass

    16

    VCF stretch cluster-WLD AZ1 host unplanned failure triggered HA protection

    Pass

    Pass

    17

    Maintenance work for management domain level HA protection

    Pass

    Pass

    18

    Network failure between WLD AZ1 hosts and AZ2 hosts

    Pass

    Pass

    19

    PowerMax SRDF/Metro: unplanned failure on one of PowerMax Node (R1 or R2)

    Pass

    Pass

    Table 10.           Test results for iSCSI

    Number

    Test case

    iSCSI uniform with PPVE7.0

    iSCSI nonuniform with NMP

    1

    PowerMax SRDF/Metro LUN provision to servers of workload domain

    Pass

    Pass

    2

    VMFS5\6 creation on PowerMax SRDF/Metro LUN over 2 TB

    Pass

    Pass

    3

    VM deployment, Power On/Off and Suspend/Resume on PowerMax SRDF/Metro LUN

    Pass

    Pass

    4

    VM snapshot create and revert and delete on PowerMax SRDF/Metro LUN

    Pass

    Pass

    5

    VM clone on PowerMax SRDF/Metro LUN

    Pass

    Pass

    6

    VM (newly created and workload domain initiated NSX appliance) can perform storage migration bidirectionally between PowerMax SRDF/Metro LUN

    Pass

    Pass

    7

    LUN hot add/remove with PowerMax SRDF/Metro LUN to workload domain cluster node

    Pass

    Pass

    8

    Online device expansion on PowerMax SRDF/Metro LUN in workload domain

    Pass

    Pass

    9

    VM migration in workload domain cluster on PowerMax SRDF/Metro

    Pass

    Pass

    10

    Host-side HBA port failure triggered I/O path failover

    Pass

    Pass

    11

    Storage-side SP port failure triggered /IO path failover

    Pass

    Pass

    12

    Storage firmware NDU

    Pass

    Pass

    13

    PowerMax SRDF/Metro feature test for interlink break triggered VM level HA protection

    Pass

    Pass

    14

    Scale testing for more than 100 VMs operating simultaneously on PowerMax SRDF/Metro LUNs attached to workload domain

    Pass

    Pass

    15

    Scale testing for long-time stress I/O running in all VMs

    Pass

    Pass

    16

    VCF stretch cluster-WLD AZ1 host unplanned failure triggered HA protection

    Pass

    Pass

    17

    Maintenance work for management domain level HA protection

    Pass

    Pass

    18

    Network failure between WLD AZ1 hosts and AZ2 hosts

    Pass

    Pass

    19

    PowerMax SRDF/Metro: unplanned failure on one of PowerMax Node (R1 or R2)

    Pass

    Pass