HP LeftHand P4000 SAN Solutions - Manual (Page 179)

Table 58 Troubleshooting snapshot issues (continued)
Description Issue
is created during NIC failover
on an application server. Wait until the NIC failover has completed. Application-managed snapshots should
then resume successfully.
If you have a Hyper-V configuration with cluster shared volumes, you may see the
following error when an application aware managed snapshot is taken on one of
the cluster shared volumes. When creating an
application-managed snapshot
of a cluster shared volume, an
Cluster Shared Volume 'Volume3' ('CSV3') is no longer directly
accessible from this cluster node. I/O access will be
error message displays on the
passive server.
redirected to the storage device over the network through the
node that owns the volume. This may result in degraded
performance. If redirected access is turned on for this volume,
please turn it off. If redirected access is turned off, please
troubleshoot this node's connectivity to the storage device
and I/O will resume to a healthy state once connectivity to
the storage device is reestablished.
The error indicates that the volume is no longer accessible, but the volume is in a
passive state on that particular node (and active on the other node). The snapshot is
taken successfully. You can ignore this message.
Mount the LeftHand OS volume on a different server that is not running vCenter Server
and perform managed snapshots there. Unable to create
application-managed snapshots
for a locally mounted LeftHand
OS volume when the
Application Aware Snapshot
Manager is installed on a server
that also has VMware vCenter
Server installed.
To resolve this issue, ensure that scheduled snapshots are set to times where there is
less activity on the application server. It is possible for scheduled
application-managed snapshots
to fail if the application server
is overloaded and unable to
quiesce the application.
Troubleshooting snapshots 179