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## Storage pools 

## 4 

This chapter describes how the IBM Storwize V5000 Gen2 manages physical storage resources. All storage resources that are under IBM Storwize V5000 Gen2 control are managed by using storage pools . Storage pools dynamically allocate resources, maximize productivity, and reduce costs. 

Internal and external managed disks (MDisks), advanced internal storage, and storage pool management are described in this chapter. For more information about external storage controllers, see Chapter 11, “External storage virtualization” on page 607. 

Storage pools can be configured through the Initial Setup wizard when the system is first installed, as described in Chapter 2, “Initial configuration” on page 39. They can also be configured after the initial setup through the management GUI, which provides a set of presets to help you configuring different Redundant Array of Independent Disks (RAID) types. 

The recommended configuration presets configure all drives into RAID arrays based on drive class and protect them with the correct number of spare drives. Alternatively, you can configure the storage to your own requirements. Selections include the drive class, the number of drives to configure, whether to configure spare drives, and optimization for performance or capacity. 

This chapter includes the following topics: 

GLYPH<SM590000> 4.1, “Working with internal drives” on page 160 

GLYPH<SM590000> 4.2, “Working with storage pools” on page 172 

GLYPH<SM590000> 4.3, “Working with managed disks” on page 188 

GLYPH<SM590000> 4.4, “Working with external storage controllers” on page 215 

