LaCie 2BIG NAS User Manual page 302

Synchronizing Times
Synchronizing a volume can take five minutes to many hours, depending on the level of RAID, the capacity of
the hard disks in the volume, and your LaCie NAS's available resources (concurrent tasks such as backups or
torrent downloads will slow synchronizing). For example, creating an unprotected RAID volume takes less than
five minutes while RAID 6 with large capacity disks can run for one or more days. Note that you can access the
volume while it is synchronizing.
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