6.4

Reference Guide
60 VMware, Inc.
Replication
You can view replication status and manage data replication using the Data: Replication page.
Registry and File Synchronization Status
Two panes near the top of the Replication page in vCenter Server Heartbeat Console, File System
Synchronization Status and Registry Synchronization Status, provide graphical status information.
The synchronization status for each file or folder can read three different values depending on the verification
and synchronization states as described in Table 8-1.
Initiate a Full Registry Check
The registry check re-scans and synchronizes all registry keys specified in the built-in registry filters between
the servers and the results are displayed in the Registry Synchronization Status pane.
To initiate a full registry check
Click Full Registry Check in the Registry Synchronization pane.
Initiate a Full System Check
You can verify and synchronize the entire protected file set with a Full System Check. A Full System Check
performs the same block level check of all the files set by the file filters in the initial startup synchronization
and verification.
When you click Full System Check, a dialog asks you to confirm the request and warns you that depending
on the amount of data under protection, this task can take a long time to complete (for example, a number of
hours). Click Yes to perform the check.
Switchover cannot occur until the full system check completes and the File System Status is Synchronized.
The File System Status is Unchecked when you cancel the task. Depending on the amount of data,
resynchronization can take substantial time to complete.
Configure Fast Check
The Fast Check process is used by vCenter Server Heartbeat to rapidly verify files between servers prior to
starting applications. Fast Check compares file time stamps and attributes rather than the check sums of the
data thereby accelerating the startup and synchronization process. If the time stamp or attribute check fails,
than the normal verification and synchronization process will initiate. Additionally, you can configure the
length of time to wait for Fast Check to complete before starting applications.
Fast Check is beneficial after a graceful shutdown where the severs were synchronized before shutdown. Fast
Check allows the server to check the file synchronization rapidly and start to service clients. If Fast Check
detects files that are out-of-sync, it initiates the full verify and synchronization process to resynchronize your
data.
When combined with Controlled Shutdown, Fast Check provides the ability to perform scheduled unattended
restarts of the servers.
Table 8-1. Synchronization Status
Icon Description
The file is verified and successfully synchronized.
The file is not synchronized on the active and passive servers. This state often follows a failover and
requires manual synchronization and verification.
The file or folder has not been checked because a full system check has not been performed or the system
check has not yet reached the file or folder.