Areca ARC-1280ML - Disk Write Cache Mode; Disk Capacity Truncation Mode

WEB BROWSER-BASED CONFIGURATION
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Disk Write Cache Mode
A user can set the “Disk Write Cache Mode” to: Auto, Enabled,
or Disabled.
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Disk Capacity Truncation Mode
ARECA RAID controllers use drive truncation so that drives from
differing vendors are more likely to be able to be used as spares
for each other. Drive truncation slightly decreases the usable
capacity of a drive that is used in redundant units.
The controller provides three truncation modes in the system
conguration: Multiples Of 10G, Multiples Of 1G, and No
Truncation.
Multiples Of 10G: If you have 120 GB drives from different
vendors; chances are that the capacity varies slightly. For exam-