Dc-Management Operation; Methods For Resizing A Host Volume File System And Virtual Disk - HP 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure User Manual

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
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