The following table shows a comparison of both, the local and shared storage for quick reference:
|
Local storage |
Shared storage | |
|---|---|---|
|
Virtual machine live migration |
No |
Yes |
|
High Availability |
No | |
|
Cost |
Lower |
Significantly higher |
|
I/O performance |
Slower than native disk drive speed | |
|
Skill requirements |
No special storage skills required |
Must be skilled on the shared storage option used |
|
Expandability |
Limited to available drive bays of a node |
Expandable over multiple nodes when multinode or distributed shared storage used |
|
Maintenance complexity |
Virtually maintenance free |
Storage cluster requires regular monitoring |