Database Reference
In-Depth Information
Figure 6.20
SQL AlwaysOn Failover Cluster Instance storage layout.
For this reason and for reduced management overheads and complexity, we recommend
the use of AlwaysOn Availability Groups over Failover Cluster Instances where
possible.
Tip
We recommend all non-shared disks of your SQL FCI be set to Independent
Persistent to ensure they are not impacted by accidental VM snapshot operations.
Any VM snapshot operations on these disks can cause unexpected cluster
failovers.
Expanding SQL Virtual Machine Storage
When designing your virtual machine storage architecture for SQL Server, you need to
consider how the allocated storage will be expanded in the future as your databases
grow. We previously discussed in “
SQL Server File System Layout
”
the ability to
expand partitions and virtual disks online without disruption. This is one way of
expanding the storage available to SQL Server. An alternative approach would be to
hot-add additional virtual disks to SQL Server and then balance the data files across the
