Acer NAS 700 - page 87

Select how you want to create this virtual device.
Custom
lets you select which physical device(s) to use and lets you designate
how much space to allocate from each.
Express
lets you designate how much space to allocate and then automatically
creates a virtual device using all available devices.
Batch
lets you create multiple SAN Resources at one time. These SAN Resources
will all be the same size.
Acer Altos® NAS 700 Solution Guide
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