HP Replication Adapter for VMware vCenter Site Recovery Manager Administrator Guide (5697-2491, February 2013)

syncOnce and querySyncstatus commands
The syncOnce and querySyncStatus command sequence is:
1. SRM makes a request to RM SRA with the syncOnce command to be synchronized and
executes periodic querySyncStatus commands to check replication progress using syncID
returned by syncOnce. Checking continues until replication completes or times out.
2. RM SRA connects to a RAID Manager instance and, using RAID Manager commands, requests
finding the sync status on the source device returned by the protection arrays.
3. RM SRA returns SyncID and Sync status for the specified consistency group and/or source
device.
4. SRM follows with querySyncStatus commands to initiate and monitor data transfer.
NOTE: During configuration setup, the syncOnce and querySyncstatus commands must be
executed from the protection site as replication source.
RMSRA20 local configuration
The configuration in Figure 2 (page 10) is an example of a configured RMSRA20 using a local
connection on a Windows machine. Both VC/RMSRA20s are configured on Windows2003.
Figure 2 RMSRA20 configuration using local connection
RMSRA20 is configured by SRA command.pl as interface adapter and RMSRA20 command. In
local connection, RA command.pl calls only the RMSRA20 command. If CM is in Authentication
10 VMware Site Recovery Manager overview