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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
fi
le 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
fi
le 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
fi
le 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
fi
le 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 speci
fi
c option.
HP StorageWorks Replication Solutions Manager 4.0.1
153
Summary of Contents for 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure
Page 16: ...Tables 1 Document conventions 18 16 ...
Page 20: ...20 About this guide ...
Page 56: ...56 Replication Solutions Manager ...
Page 160: ...160 Host volumes ...
Page 384: ...384 Managed sets ...
Page 402: ...402 Oracle ...
Page 412: ...412 Storage systems ...
Page 444: ...444 Virtual disks ...
Page 456: ...456 CLUI ...