HP Storage Mirroring Software - Manual (Page 86)

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How Mirroring Works
To better understand how Storage Mirroring mirroring works, the following diagram identifies the different steps that are
completed when a mirror is performed. Each numbered step is described below the diagram.
1. Mirroring is initiated by the user, either manually through one of the clients or automatically when the connection is
created.
2. Storage Mirroring determines which data needs to be sent to the target depending on the mirroring criteria that was
specified through the client. If it is a full mirror, all of the files are sent to the target. If it is a file differences mirror, the
files contained in the replication set on the source are compared against the copy of the replication set on the target to
determine which files need to be mirrored.
3. Storage Mirroring transmits the mirror data to the target machine.
4. As each packet of mirror data is received on the target, the target returns an acknowledgment to the source confirming
that the mirrored data has been received.
Source Target
3
4
1
2
Files Contained In
Replication Set
Identical Copy Of
Replication Set