content_image/988528.jpg content_image/988529.jpg
For more information about Easy Tier settings, see IBM DS8000 Easy Tier (for DS8000 R9.0) , REDP-4667. 

## zHyperLink 

zHyperLink is a short-distance link technology intended to complement FICON technology to accelerate I/O requests that are typically used for transaction processing. It consists of point-to-point connections for random reads and writes providing up to 10 times lower latency than High Performance FICON (zHPF). You can set it to Enabled , I/O Read Enabled ,  I/O Write Enabled , or Disabled , as shown in Figure 11-28. 

<img src='content_image/988528.jpg'>

Note:  To take advantage of zHyperLink in DS8000, ensure that CUIR support (under IBM Z) is enabled. 

For more information, see Getting Started with IBM zHyperLink for z/OS , REDP-5493. 

## Date and Time 

You can enter the date and time manually, or specify an external Network Time Protocol (NTP) server to provide the date and time. See Figure 11-29. 

<img src='content_image/988529.jpg'>

