Rocstor®
Rocsecure® DE51
[13]
RAID SELECTION
JBOD (INDIVITUAL DRIVES)
Minimum number of drives: 1
Unit Capacity: 100% of each drive
Fault Tolerance: None
Spare: No
JBOD mode offers all connected units to the host adapter, no RAID is defined at all.
Note: JBOD mode requires a SATA controller featuring Port Multiplier support for eSATA connections
Note: Optical drives can only be configured as JBOD using an eSATA connection.
RAID 0 (STRIPE SET)
Minimum number of drives: 2
Unit Capacity: size of each drive times number of drives.
Fault Tolerance: None - if any drive is lost all data is lost
Spare: No
RAID 0 "stripes" the file system across the array by placing "chunks" of data sequentially between drives in a
specific order
RAID 1 or 10 (MIRROR SET, STRIPE OR MIRROR SETS)
Number of drives: 2 (RAID 1) or 4 (RAID 10)
Unit Capacity: size of one drive (RAID 1) or size of two drives (RAID 10) times Number of drives.
Spare: Yes,
if EZ mode is not disabled and 3 (RAID 1) or 5 (RAID 10) drives are present, the array will be
initialized with a spares
Fault tolerance: RAID 1 can withstand the loss of one drive without losing data. RAID 10 can withstand the loss
of one drive from each mirror set without losing data. RAID 1 works by duplicating the exact same data on two
drives. RAID 10 works by using two RAID 1 sets configured as members of a RAID 0. Disks 1 and 2 are mirrored,
disks 3 and 4 are mirrored, and the two mirror sets are striped together mode offers all connected units to the
host adapter, no RAID is defined at all.
