IBM Storwize V5030 User Manual

638 Implementing the IBM Storwize V5000 Gen2 with IBM Spectrum Virtualize V8.1
After successful resynchronization, the host switches automatically to the I/O group at the
same site for the best performance and limited inter-switch link (ISL) usage, as shown in
Figure 10-164.
Figure 10-164 Data flow after resynchronization
HyperSwap uses Metro Mirror technology, which enables the usage of Metro Mirror
consistency groups that are described in “Remote Copy Consistency Groups” on page 561.
10.12.3 Current HyperSwap limitations
HyperSwap has the following limitations:
򐂰 Cluster internal Metro Mirror is used for replication, so the size of a HyperSwap volume
cannot be changed by using expandvdisksize and shrinkvdisksize.
򐂰 A cascaded Remote Copy is not available. HyperSwap volumes cannot be replicated to a
second, independent storage system by using Remote Copy functionality.

IBM Storwize V5030 Specifications

General

Brand	IBM
Model	Storwize V5030
Category	Storage
Language	English