Which external storage can be connected to PowerMax using DX emulation?
A user can create, manage, and delete PowerMax SRDF device pairs. They can also view the array information, masking objects, device information, and the defined RBAC rules. However, they are unable to create and delete SRDF groups. Which RBAC profile has been assigned to the user’s profile?
DRAG DROP Match Dual Personally SRDF device to its usage SRDF role. Explanation: RDF device used for Concurrent SRDF environments = R21 SRDF device used for SRDF/Star environments = R11 SRDF device used for Cascaded SRDF environments = R22 A dual personality SRDF device is a device that can act as both an R1 and an R2 device in different SRDF configurations. There are three types of dual personality SRDF devices: R21, R11, and R22. An R21 device is an R2 device that is paired with another R1 device in a different SRDF group. This allows the R21 device to receive updates from the primary site and send updates to the secondary site. An R21 device is used for Concurrent SRDF environments, which provide simultaneous disaster recovery and data migration capabilities. For example, an R21 device can be used to migrate data from one array to another while maintaining a synchronous cop y of the data on a third array.1 An R11 device is an R1 device that is paired with another R1 device in a different SRDF group. This allows the R11 device to receive updates from the primary site and send updates to the tertiary site. An R11 device is used for SRDF/Star environments, which provide three -site disaster recovery capabilities with a single hop between any two sites. For exa mple, an R11 device can be used to create a synchronous copy of the data on a secondary site and an asynchronous copy of the data on a tertiary site.2 An R22 device is an R2 device that is paired with another R2 device in a different SRDF group. This allows the R22 device to receive updates from the secondary site and send updates to the tertiary site. An R22 device is used for Cascaded SRDF environments, which provide three -site disaster recovery capabilities with two hops between the primary and tertiary sites. For example, an R22 device can be used to create an asynchronous copy of the data on a secondary site and another asynchronous copy of the data on a tertiary site.3 Reference: Dell EMC SRDF Introduction - Dell Technologies Partner Portal Dell EMC PowerMax and VMAX All Flash: SRDF Product Guide Dell EMC PowerMaxOS Performance Guide
vWitness and Array Witness options are deployed in the same operating environment simultaneously. Which option does SRDF/Metro favor in this situation?
DRAG DROP What is the correct sequence of steps to configure and bring up an SRDF/Star environment? Explanation: he correct sequence of steps to configure and bring up an SRDF/Star environment is as follows: Verify SRDF/Star control host connectivity and array settings. This step involves checking the network connectivity between the control host and the three arrays involved in the SRDF/Star configuration, as well as verifying the array settings such as RDF mode, RDF consistency, and RDF emulation. The control host is the host that runs the Solutions Enabler SYMCLI commands to manage the SRDF/Star configuration. The three arrays are the primary array, the secondary array, and the tertiary array.1 Enable SRDF/Star configuration. This step involves enabling the SRDF/Star feature on the primary array using the symstar enable command. This command also creates a STAR control device group on the primary array, which contains a single device that acts as a control point for the SRDF/Star configuration. The STAR control device group must have a unique name and number across all arrays.1 Add BCV devices to the SRDF/Star configuration. This step involves adding Business Continuance Volume (BCV) devices to the STAR control device group on the primary array using the symstar add bcv command. BCV devices are local copies of data that can be used for backup, restore, or testing purposes. BCV devices are required for SRDF/Star configurations to enable fast recovery in case of a disaster. The number of BCV devices must match the number of R1 devices in the SRDF/Star configuration.1 Create an SRDF/Star composite group and options file. This step involves creating an SRDF/Star composite group on the control host using the symstar create command. An SRDF/Star composite group is a logical grouping of devices that span across three arrays and have different SRDF roles: R11, R21, and R22. An R11 device is an R1 device that is paired with another R1 device in a different SRDF group. An R21 device is an R2 device that is paired with another R1 device in a different SRDF group. An R22 device is an R2 device that is paired with another R2 device in a different SRDF group. The symstar create command also creates an options file that contains various parameters for the SRDF/Star configuration, such as RDF mode, RDF consistency, RDF emulation, and bias setting.1 Perform the symstar setup operation and create composite groups on target sites. This step involves performing the symstar setup operation on the control host using the symstar setup command. This command establishes the SRDF/Star configuration by creating RDF pairs between devices in different arrays, creating RDF groups on each array, creating composite groups on each array, and synchronizing data across all devices. The symstar setup command also creates composite groups on the secondary and tertiary arrays using the same name and number as the composite group on the primary array.1 Reference: Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide
SRDF/A MSC has been configured between two sites. There are two PowerMax arrays at the source site and two PowerMax arrays at the target site. An SRDF/A MSC trip event has occurred. What happens if the Receive Delta Set on one of the target arrays is incomplete?
