HP 418800-B21 HP StorageWorks Replication Solutions Manager 4.0.1 user guide ( - Page 153
DC-Management operation, Methods for resizing a host volume, le system and virtual disk
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NOTE: The policy threshold is checked against the current size of the host volume during each automatic storage refresh cycle (default 30 minutes). Therefore, even if the current size of the host volume exceeds the set threshold, the earliest the policy will be triggered is at the next refresh cycle. You can also manually invoke a global refresh, which may trigger a policy as well. DC-Management operation NOTE: During a resize operation, DC-Management communicates with both the RSM host agent and HP Command View EVA. It is necessary to have both of these components installed to implement DC-Management on a host. When resizing the host volume file system, DC-Management communicates with the RSM host agent running on the enabled host. The Windows RSM host agent uses the Windows Virtual Disk Service (VDS) to resize the file system. When resizing a virtual disk, DC-Management communicates with HP Command View EVA. Command View EVA processes virtual disk resize requests and passes them to the array, where the resize operation is implemented. Because it is communicating with both the array and the host operating system, DC-Management can coordinate the interaction between the file system and the underlying virtual disk during a resize operation. This ensures you do not change the size of one component without making the necessary changes to the other as well. And you can make the necessary changes in a single step using RSM. Methods for resizing a host volume file system and virtual disk In addition to DC-Management, you can resize a host volume from the operating system and from HP Command View EVA. The following table lists the various resize options available and describes what you should consider when choosing a specific option. HP StorageWorks Replication Solutions Manager 4.0.1 153