Which PowerMax software packages include Non-Disruptive Migration?
Which PowerMax software packages include Non-Disruptive Migration?
Non-Disruptive Migration (NDM) is typically included in the PowerMax software packages Essentials and Pro. These packages provide the necessary features for seamless migration processes. Options F and FX pertain to VMAX All Flash packages and are not relevant to PowerMax.
An administrator is using Unisphere for PowerMax Workload Planner to assess the performance and compliance of a PowerMax Storage Group (SG). How does the Planner calculate if the Storage Group workload is stable?
The Planner calculates if the Storage Group workload is stable if both calculated values are within the SL-defined response time. This measure ensures that the workload is within acceptable performance limits set by the service level agreement.
Two PowerMax arrays have been configured for replication using SRDF. During a disaster recovery operation, production has been transferred to the R2 devices at the target site. Which operation begins the transfer of accumulated invalid tracks from the R2s to the R1s while production work continues on the R2s?
In the context of SRDF (Symmetrix Remote Data Facility) during a disaster recovery operation, when production has been transferred to the R2 devices at the target site, the correct operation to begin the transfer of accumulated invalid tracks from the R2s to the R1s while continuing production work on the R2s is the 'Resume' operation. This operation resumes SRDF replication, syncing the differences (invalid tracks) from R2 back to R1 without interrupting ongoing production work on the R2 devices.
A systems administrator asks whether their host is supported for non-disruptive migration (NDM) between PowerMax arrays. The host they plan to migrate has one HBA and no multipathing software. What information should be provided to the administrator?
A host with only one HBA and no multipathing software will face issues regarding redundancy and failover during a migration process. Therefore, non-disruptive migration (NDM) is not supported for such a host as it cannot ensure continuous availability during migration.
A host is connected to two PowerMax arrays with SRDF/Metro. Host I/Os cannot be delivered across the SRDF link. The devices in the SRDF group have been forced into a Not Ready state to the host. Which attribute is set on the SRDF group to cause this behavior?
When SRDF devices are forced into a Not Ready state because host I/Os cannot be delivered across the SRDF link, it is due to the 'Local Link Domino' attribute. This setting ensures that the devices in the SRDF group are made unavailable if there is an issue with the link, preventing potential data inconsistency or corruption.