Western Digital My Cloud Mirror User Manual - Manual (Page 94)

MANAGING STORAGE ON WD MY CLOUD MIRROR
89 WD MY CLOUD MIRROR PERSONAL CLOUD STORAGE
USER MANUAL
Managing Storage on WD My Cloud Mirror
About Storage
RAID Storage
Disk Status
About Storage
The Storage page allows you to configure the storage within your device and view the status
and capacity of its disks. This chapter provides details on managing the storage on your WD
My Cloud Mirror device.
RAID Storage
RAID (Redundant Array of Independent Disks) allows you to store the same data in different
places on multiple hard drives, providing necessary redundancy, greater performance, and
data integrity. There are several different levels of RAID, each one providing a different
method of sharing or distributing data among the drives. Your WD My Cloud Mirror device
allows you to select from the following storage modes:
Note: The difference between a drive and a volume is that a volume can be a
single drive or multiple drives.
RAID Mode Description
JBOD The use of one or more drives not in a RAID configuration but managed as
separate logical volumes.
Spanning Combination of drives in a linear fashion to create one large logical volume.
RAID 0 RAID 0 mode provides disk striping across all drives in the RAID drive group.
RAID 0 does not provide data redundancy but does provide the best performance
of any RAID level. RAID 0 breaks up data into smaller segments and stripes the
data segments across each drive in the drive group.
RAID 1(default) In RAID 1 mode, the RAID controller duplicates all data from one drive to a second
drive in the drive group. RAID 1 provides complete data redundancy but cuts the
required storage capacity in half.
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