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36 TR1059 | V4.0 | Exchange 2013 Data Protection with EqualLogic Auto-Snapshot Manager/Microsoft Edition 4.6 and PS
Series Arrays
C VSS-control troubleshooting tips
ASM/ME uses CHAP authentication to communicate with the PS Series group. The authentication user
name and password must be the same on the host running Auto-Snapshot Manager and the PS Series
group.
If the PS Series group IP address is not already in the groups listed under PS Group Access on the settings
tab in Auto-Snapshot Manager, add the IP address of the PS Series group you would like to connect to and
add the CHAP username and password (Figure 21). If the group is in the list, you can modify the Host
Management access rights to match those of the PS Series group you would like to use with Auto-
Snapshot Manager. Be sure to restart the Auto-Snapshot Manager application if you modify the Host
Management credentials.
You can determine whether CHAP authentication is set up correctly by selecting the Targets tab in the
Microsoft iSCSI Initiator service and verifying that the vsscontrol volume is shown in the list. The vsscontrol
volume should have a status of connect if CHAP is set up correctly. If there are multiple vsscontrol
volumes in the targets list, you can display the connection details by selecting the volume and choosing
Details in the Targets window. The PS Series group connection will be listed in the Session Connections
section. Be sure the Volume Shadow Copy service is running on the host prior to checking the vsscontrol
volume status.