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## 11.6.6 Setting the fibre channel port protocols for IBM Z attachment 

For a IBM Z host to access assigned CKD volumes, the host must connect to the DS8880 HA over Fibre Channel. The protocol of the host adapter port must be set to FICON. 

To set the fibre channel port protocols of the fibre channel ports that the host uses to communicate with the DS8880, complete these steps: 

1. In the System window, click Actions →  Modify Fibre Channel port protocols . 

2. Select one or multiple ports to modify and click Actions →  Modify . 

3. The Modify Protocol for the selected Ports page opens. Select the FICON  protocol. 

4. Click Modify  to set the topology for the selected fibre channel ports as shown in Figure 11-110. 

<img src='content_image/1014559.jpg'>

## 11.6.7 Easy Tier support 

You can assign the volume to an Easy Tier drive class, or specify a tier that the volume should not use. 

## Assign Volume to Drive Class 

Select a Volume , then click Assign to Drive Class as shown in Figure 11-111 on page 351. 

A window with options based on the drive classes that are in the pool opens. If you select a drive class that is different from the drive class that is in use by the volume, Easy Tier moves the volume to the new drive class. The following options are available, depending on the drive classes that are in the pool: 

GLYPH<SM590000> Flash Tier 0: Assign the volume to the Flash Tier 0 (previously HighPerFlash). 

GLYPH<SM590000> Flash Tier 1: Assign the volume to the Flash Tier 1 (previously HighCapFlash). 

GLYPH<SM590000> Flash Tier 2:Assign the volume to the Flash Tier 2. 

GLYPH<SM590000> Enterprise: Assign the volume to the enterprise (SAS 10-K or 15-K RPM disk drives) tier. 

GLYPH<SM590000> Nearline: Assign the volume to the Nearline (SAS 7.2-K RPM disk drives) tier. 

GLYPH<SM590000> Exclude HDD: Exclude the volume from the enterprise or Nearline tiers. 

GLYPH<SM590000> Exclude Nearline: Exclude the volume from the Nearline tier. 

