GLYPH<SM590000> Easy Tier Heat Map Transfer (HMT) can take the data placement algorithm on the Metro  Mirror/Global Copy/Global Mirror (MM/GC/GM) primary site and reapply it to the  MM/GC/GM secondary site when failover occurs by using the Easy Tier Heat Map  Transfer Utility (HMTU). With this capability, the DS8000 systems can maintain  application-level performance. The Easy Tier HMT functions support Metro/Global Mirror  (MGM) to transfer a heat map automatically to a tertiary site. GLYPH<SM590000> For Easy Tier to function effectively, it needs some free extents in each extent pool to be  able to move extents around. Rather than having the storage administrator monitor  capacity, the system can reserve some space for Easy Tier extent movements. You can  enable space reservation for Easy Tier by issuing the command  chsi -etsrmode enable . GLYPH<SM590000> Another control is the allocation policy for new volumes. You can control the allocation  policy according to your needs with the  chsi  command and the  -ettierorder highutil  or  highperf :  – The data allocation order for Hybrid systems can be changed between the  High-Utilization  tiers (default), Enterprise  Flash Tier 1  Flash Tier 2 Nearline  Flash Tier 0, or the  High-Performance  tiers, Flash Tier 0  Flash Tier  1  Flash Tier 2  Enterprise  Nearline. – The data allocation or der for All-Flash systems can be changed between the  High-Utilization  tiers Flash Tier 1  Flash Tier 2  Flash Tier 0, or the default  High-Performance  Tiers Flash Tier 0  Flash Tier 1  Flash Tier 2. GLYPH<SM590000> IBM DS8000 Easy Tier (for DS8880 R8.5 or later) , REDP-4667 GLYPH<SM590000> DS8870 Easy Tier Application , REDP-5014 GLYPH<SM590000> IBM DS8870 Easy Tier Heat Map Transfer , REDP-5015 GLYPH<SM590000> The 16 Gbps FC adapter has four 16 Gbps-capable ports. Each port independently  auto-negotiates to 4, 8, or 16 Gbps link speed, and it can be configured to FCP or FICON.  GLYPH<SM590000> The 8 Gbps FC adapter has four or eight 8 Gbps-capable ports. Each port independently  auto-negotiates to 2, 4, or 8 Gbps link speed, and it can be configured to FC-AL, FCP, or  FICON.  Chapter 1. Introduction to the IBM DS8880  15 The HMC is the focal point for maintenance activities and contains a version of Copy Services  manager (CSM). The HMC is a dedicated workstation that is physically inside the DS8880.  The HMC can proactively monitor the state of your system and notify you and IBM when  service is required. It can also be connected to your network to enable centralized  management of your system by using the IBM data storage command-line interface (DS CLI).  The HMC supports the IPv4 and IPv6 standards. For more information, see Chapter 8, “IBM  DS8880 Management Console planning and setup” on page 219. For more information, see Chapter 2, “IBM DS8880 hardware components and architecture”  on page 25. The DS8880 offers 16 Gbps and 8 Gbps Fibre Channel host adapters:  For more information about the Easy Tier features, see the following resources: The following Easy Tier controls are also available: Note:  Easy Tier Server has been removed from marketing support. It is replaced with the  Flash Cache option of IBM AIXfi 7.2. Storage Hardware Management Console (HMC) for the DS8880 Host adapters