Product specifications

ISR654605-00 A 3-1
3 Performance and Downtime
This chapter provides recommendations designed to improve performance and
minimize downtime during data migration.
Optimizing Performance During Data Migration
The MPX200 detects the multiple paths of a specified LUN and performs load
balancing using active optimized paths. To get the best performance, QLogic
highly recommends that LUNs for the source array and destination array are
balanced across both controllers. One set of LUNs shows active optimized paths
on one controller, while another set of LUNs shows active optimized paths on a
different controller.
Where high availability (HA) configuration as redundant SAN is deployed, QLogic
highly recommends the following:
 Connect one Fibre Channel port from the MPX200 blade to one SAN, and
connect the other port to the redundant SAN.
 Connect Fibre Channel ports from the destination array to both SANs.
 Maximize array performance by simultaneously running 4 to 8 active jobs on
a single array. The MPX200 can perform up to 32 active migrations jobs
(255 configured) per array.
 Balance across two controllers the LUNs used in migration jobs that run
simultaneously.
Minimizing Downtime
The MPX200's ability to deliver a migration rate of 4TB/hr. per blade—combined
with seamless integration of the MPX200 in the SAN and data protection features
such as array attributes (source/destination)—make it likely that the downtime
objective will be met by offline data migration. The following recommendations will
simplify the data migration project:
 Configure all migration jobs in the MPX200 before application downtime
begins.
 Deploy dual blade configuration in the MPX200 to achieve up to 8TB/hr. (for
storage arrays that are capable of delivering such performance).