When Norton AntiVirus (NAV) is installed on a Volume Replicator host that has a Primary RVG with heavy updates, then, after some hours of antivirus scan for virus detection, the Volume Replicator host may experience a system freeze, hang, or be slow in responding to user interactions. This can also affect the behavior of the Volume Replicator replication services, such as Secondary disconnection or loss of data when virus scans are scheduled on the Primary host.

This can be because of a known issue with few versions of Norton AntiVirus (including Corporate Edition, version 7.0x) that causes kernel memory leaks during its virus scans. Such kernel memory leaks would severely degrade the system performance causing the system to become unstable, slow in responding, and at times may even cause a system crash.

Currently, Volume Replicator is not fully tested with edition 7.51 to ascertain that it is completely free from kernel memory leaks.

Refer Norton Antivirus Release Notes for details.

Schedule the Norton AntiVirus (NAV) scan at times when Volume Replicator and the application workload is lean.

Veritas recommends that to avoid such issues on a Volume Replicator host that has Norton AntiVirus installed, the scanning time of Norton AntiVirus should be scheduled in such a way that it should not overlap Volume Replicator updates on the Primary RVG.

When such a situation occurs, restart the system to recover Volume Replicator.