Large Volume Support And Firewire Booting In Mac Os - OWC Mercury Elite Pro Assembly Manual & User Manual

2.3 LARGE VOLUME SUPPORT AND FIREWIRE BOOTING IN MAC OS

Your Mercury Elite Pro is preconfigured with a setting known as "large volume support"
enabled. Enabling large volume support allows the Mercury Elite Pro to utilize the full
capacity of drives larger than 2TB.
When large volume support is enabled (switch set to "On"), PowerPC Macs and Intel Macs
introduced before 2008 will not be able to boot to the Mercury Elite Pro over the FireWire
connection. This is a limitation of these computers.
Mac models introduced in 2008 and later are fully capable of using the Mercury Elite Pro as
a boot drive over FireWire, even with large volume support enabled. Note that this only af-
fects FireWire booting. All Intel Macs are still able to boot to the Mercury Elite Pro over USB,
regardless of large volume support.
If your Mercury Elite Pro contains a drive 2TB or smaller in capacity and you wish to use it as a
FireWire boot drive for a pre-2008 Mac, please contact OWC technical support for assistance
with disabling large volume support (see Section 3.6 for more information).
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OWC MERCURY ELITE PRO DEVICE SETUP