Figure 11-88 Write on volume in Metro Mirror relationship However, this process also means that the application is exposed to the latency and  bandwidth limitations (if any) of the communication link between the master and auxiliary  volumes. This process might lead to unacceptable application performance, particularly when  placed under peak load. Therefore, the use of traditional Fibre Channel Metro Mirror has  distance limitations that are based on your performance requirements. IBM Spectrum  Virtualize does not support more than 300 km (186.4 miles). The IBM Spectrum Virtualize Metro Mirror function supports the following features:  11.6.7 Metro Mirror features GLYPH<SM590000> IBM Spectrum Virtualize implements a configuration model that maintains the Metro Mirror  configuration and state through major events, such as failover, recovery, and  resynchronization, to minimize user configuration action through these events. GLYPH<SM590000> IBM Spectrum Virtualize does not require that a control network or fabric is installed to  manage Metro Mirror. For intercluster Metro Mirror, the system maintains a control link  between two systems. This control link is used to control the state and coordinate updates  at either end. The control link is implemented on top of the same FC fabric connection that  the system uses for Metro Mirror I/O. GLYPH<SM590000> Intercluster and intracluster Metro Mirror can be used concurrently. GLYPH<SM590000> IBM Spectrum Virtualize supports intercluster Metro Mirror where each volume belongs to  a separate system. You can configure a specific system for partnership with another  system. All intercluster Metro Mirror processing occurs between two IBM Spectrum  Virtualize systems that are configured in a partnership.  GLYPH<SM590000> Supports intracluster Metro Mirror where both volumes belong to the same system (and  I/O Group). GLYPH<SM590000> The Metro Mirror relationships between volume pairs, with each volume in a pair that is  managed by a Storwize V7000 system or IBM SAN Volume Controller system (requires  V6.3.0 or later). GLYPH<SM590000> Synchronous remote copy of volumes that are dispersed over metropolitan distances. 522  Implementing the IBM Storwize V7000 with IBM Spectrum Virtualize V8.2.1