When you create a storage system volume to hold LUNs managed by SnapDrive for Windows, you should keep several things in mind.
Consider the following guidelines:
- You can create multiple LUNs on a storage system volume.
- A LUN must reside at either the root of a volume (traditional or flexible) or the root of a qtree.
Note: Do not create LUNs on the /vol/vol0 volume.
You can optimize your storage system volumes in the following ways:
- When multiple hosts share the same storage system, each host should have its own dedicated volume on that storage system to hold all the LUNs connected to that host.
- When multiple LUNs exist on a storage system volume, the dedicated volume on which the LUNs reside must contain the LUNs for just one host, and must not contain any other files or directories. Creating LUNs on different dedicated volumes is necessary to ensure that Snapshot copies are consistent and to avoid the possibility of busy Snapshot copies. To optimize Snapshot copy space usage, it is better to have fewer LUNs per volume, with one LUN per volume being the optimum configuration.
