Running Failback; Failover With Cifs Server In Ad Authentication; Reduced Performance Using Data In Flight Encryption - HPE StoreOnce 6500 User Manual

IMPORTANT: It is very important to fix the hardware problem that caused the node to fail as soon
as possible. Although all services are running correctly, performance may be slower (depending
upon NAS, VTL and replication configuration and volume of data). If the second node has a
hardware failure before the first node is repaired, the couplet will fail.

Running failback

Once the issue has been resolved and the failed node is available again, it must be brought back into the
cluster configuration. This must be invoked manually:
• Using the Failback this server button on the appropriate Hardware page of the GUI.
• Using the StoreOnce CLI command system failback setX where X is the service set identifier.
See the StoreOnce System CLI Reference Guide for more details.

Failover with CIFS Server in AD authentication

The failover process works in the same way as described in What happens to the GUI during failover.
However, there are some best practices to follow to ensure failover and failback work correctly.
Best practices
Procedure
1. Assign Group permission to configured shares, e.g. BackupUserGroup
2. Use the Data VIF IPs to mount the shares into backup application or Windows.
3. For each node, join the AD domain and ensure it is connected.
4. Use the closest name server (DNS server) and domain controller to the StoreOnce System.
5. Register your StoreOnce System to your name server (DNS server) before joining the domain.
6. Dependent on your domain topology and size, the AD domain join time may vary significantly.

Reduced performance using Data in Flight Encryption

IMPORTANT:
Data in Flight Encryption is not supported for IPv6 subnets. In addition, Data in Flight Encryption is
intended to be used to secure network links between data centers for StoreOnce VTL or NAS
Replication, or for Low Bandwidth Catalyst Copy operations. Using Data In Flight Encryption for
direct backup operations to the StoreOnce appliance over a local network is not supported due to
the performance impact of the encryption.
If Data in Flight Encryption is configured on the subnet, it encrypts the data traffic to all the stores using
that IP connection. Therefore, it may have an impact on performance. This is the expected behavior when
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