XEVO
Software Manual
Protection Tab
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CAUTION
Snapshot function can only take the image of data which has been written
into the corresponding volume, for the cached data that resides in the
server’s cache, that doesn’t yet be flushed into the storage system, it is
unable to protect, which means the taken snapshot might consist of
inconsistent data / file / boot image, please make sure to take snapshot at
the time point when there is no data I/O incoming to the storage system, to
prevent the situation as much as possible. Any functionality that base on
snapshot function to perform will have this kind of concern, e.g., local clone
and remote replication.
SUGGESTION
It is recommended to use native remote replication function upon the
corresponding Operating System to prevent the situation, e.g., vSphere
Replication (VR), so that the cached data can be seamlessly replicated to the
target site.
7.1.2.
About Local Clone
It does easily deploy the local clone without doing configurations. In a protection group, select
a new and empty target pool, the system will send the configurations of source volumes to the
target pool. Then the target pool will generate the corresponding volumes.
The limit is that the capacity of the target pool should be larger than the total capacity of all
volumes in the protection group.
7.1.3.
About Remote Replication
QSAN QReplica 3.0 (Remote Replication) provides synchronous and asynchronous replication
solutions. With QReplica 3.0 feature, DR (Disaster Recovery) can be achieved with simple and
easy orchestration between QSAN platforms. For detailed information, please refer to the