driver provides the ability to store, retrieve, modify and delete
key value pairs for
guest partitions running on Hyper-V.
Hyper-V allows administrators to store custom metadata in the form
of key value pairs inside the
Administrators can use Windows Powershell scripts to add, read,
modify and delete such key value pairs.
The driver is bare bones and merely forwards requests to its counterpart
user mode daemon,
The daemon maintains pools of key value
pairs and does the actual metadata management.
The same driver and daemon combination are also used to set and get
IP addresses from a
The set functionality is particularly
useful when the
guest is assigned a static IP address and is failed over from one
Hyper-V host to another.
After failover, Hyper-V uses the set IP functionality to automatically
guests IP address to its original static value.
On the other hand, the get IP functionality is used to update the guest IP
address in the Hyper-V management console window.