Home > Workload Solutions > Oracle > Guides > Reference Architecture Guide—Dell EMC Ready Solutions for Oracle: Design for Unity All Flash Storage > Unity 650F storage design
Dell EMC Unity storage systems support two types of storage pools on all-flash storage arrays: traditional pools and dynamic pools[1]. Dynamic pools provide many benefits over traditional pools. The new pool structure eliminates the need to add drives in multiples of RAID stripe-widths. Data space and replacement space are spread across the drives within the pool. For greater flexibility in managing and expanding the pool, better drive utilization, and improved application I/O, we recommend that you create a small number of dynamic pools that include large numbers of drives of the same type. When determining the number of pools, consider that there might be different types of workloads, and dedicate resources to meet specific performance goals. For additional Unity storage best practices for Oracle Database, see Dell EMC Unity: Oracle Database Best Practices.
The following table details the storage pools that we created for this reference architecture.
Table 1. Unity storage array pool design
Pool name | RAID configuration | Capacity | Purpose | Number of LUNs |
VM_Pool | RAID 5 | 2.8TB | VM operating system LUN and Oracle Clusterware LUNs | 4 |
DB_Pool | RAID 5 | 45.8 TB | Database LUNs and their snapshots | 11 original database LUNs plus additional snapshots upon creation |
The following table details the database LUNs that we created in the storage pools. In additional to these database LUNs, we created two snapshots of the database volumes to study the impact of snapshot creation on database performance and storage capacity.
Table 2. Oracle Database LUN design on Unity storage
LUN | Purpose | VM_POOL | DB_POOL | Thin LUN | Data reduction enabled? |
VM OS | VM operating system volume | 1 x 500 GB |
| Yes | Yes |
OCR/VD | Clusterware and virtual disk (VD) storage | 3 x 50 GB |
| Yes | Yes |
DATA | Database files |
| 4 x 500 GB | Yes | Yes |
REDO | REDO logs |
| 4 x 25 GB | Yes | Yes |
TEMP | TEMP tablespace |
| 1 x 500 GB | Yes | Yes |
FRA | Flash Recovery Area for archive logs |
| 2 x 100 GB | Yes | Yes |