Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

This section describes DSE pool management on arrays running Enginuity 5876. These procedures do not apply to arrays that run HYPERMAX OS 5977 and higher.

Restrictions

• A DSE pool cannot have the same name as a Snap pool on the same array.
• Each DSE pool can only contain one type of device emulation: FBA, CKD3390, CKD3380, or AS400.
• Each SRDF group can have at most one pool of each emulation.

DSE pool best practices

• Configure DSE pools on both R1 and R2 arrays.
• Plan for peak workloads.
• Spread the DSE pool devices across as many disks as possible.
• Ensure that sufficient DA and RA CPU resources are available for the DSE task.
• To simplify management and make the most efficient use of resources, use as small a number of DSE pools as possible.
• Configure DSE pools and enable DSE on the primary and on the secondary array. When TimeFinder/Snap sessions are used to replicate either R1 or R2 devices, create two separate preconfigured storage pools: DSE and Snap pools.
• Configure a separate DSE pool for each device emulation type (FBA, IBMi, CKD3380 or CKD3390). You can create multiple DSE pools for different SRDF/A groups.

Best Practices for Dell EMC® SRDF®/A Delta Set Extension Technical Note provides more information.