RAID6 is similar to RAID5; however, it uses dual parity to enable the
array to survive two disk failures, without data loss.
Array capacity is: (n-2)*s
Where n = number of drives, and s = size of smallest disk.
RAID6 requires a minimum of four hard drives.
You can also define a standalone drive, which is a single drive with one volume
defined on it. To create a standalone drive, format the drive using the Storage
Setup Wizard (see Setting Up Storage Using the Storage Setup Wizard (on page
66)). Then create a volume, and in the Specify Volume Details dialog box's
Storage Device field, select the drive (see Adding and Editing Logical Volumes (on
page 73)).
RAID1, 5, and 6 support hot swapping, in which drives are replaced without
turning off the appliance. The array remains accessible throughout the hot swap
procedure. For further information, see Hot Swapping a Disk in a RAID1, 5, or 6
Array (on page 86).
Each array is divided into volumes, which are logical partitions on the array.
The appliance supports the following types of volumes:
Network Attached Storage (NAS)
A NAS volume is a volume that is formatted with a file system. The appliance acts as a
files server for NAS volumes, and the files on such volumes can be accessed using any of
the appliance-supported file sharing protocols.
The appliance enables you to take snapshots of NAS volumes. For more information, see
Working with Snapshots (see "Working with Volume Snapshots" on page 87).
Storage Area Network (SAN)
A SAN volume (also called "Raw") is an unformatted volume. The appliance cannot read
files on SAN volumes, and therefore file sharing, synchronization, and cloud backup
cannot be used with such volumes. In order to access a SAN volume, an iSCSI target
should be defined for this volume. The SAN volume will then appear as if it were a
physical disk on your PC or server and can be formatted remotely.
Workflow
In order to manage storage for your appliance, you must do one of the following:
Use the Storage Setup Wizard to set up storage in a few easy steps.
See Setting Up Storage Using the Storage Setup Wizard (on page 66).
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