Raid Configuration; Raid Level - Thecus N7700 User Manual

RAID Information
Item
Select
Master RAID
ID

RAID Level

Status
Disks Used
Total Capacity
Data Capacity
iSCSI Capacity
RAID Config
Space Allocation

RAID Configuration

On the RAID List screen, press the RAID
Config button to go to the RAID
Configuration screen. In addition to RAID disk
information and status, this screen lets you
make RAID configuration settings.
For more information on RAID, see
C: RAID Basics.
RAID Level
You can set the storage volume as JBOD, RAID 0, RAID 1, RAID 5, RAID 6 or
RAID 10. RAID configuration is usually required only when you first set up the
device. A brief description of each RAID setting follows:
RAID Levels
Level
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
Description
Used to select the current RAID volume.
The RAID volume currently designated as the Master RAID
volume.
ID of the current RAID volume.
NOTE: All RAID IDs must be unique.
Shows the current RAID configuration.
Indicates status of the RAID. Can read either Healthy,
Degraded, or Damaged.
Hard disks used to form the current RAID volume.
Total capacity of the current RAID.
Indicates the used capacity and total capacity used by user
data.
Indicates the capacity allocated to iSCSI.
Press this to configure RAID volumes.
Press this to adjust the space allocated for data and iSCSI.
Appendix
Description
The storage volume is a single HDD with no RAID support. JBOD
requires a minimum of 1 disk.
Provides data striping but no redundancy. Improves
performance but not data safety. RAID 0 requires a minimum of
2 disks.
Offers disk mirroring. Provides twice the read rate of single
disks, but same write rate. RAID 1 requires a minimum of 2
disks.
Data striping and stripe error correction information provided.
RAID 5 requires a minimum of 3 disks. RAID 5 can sustain one
failed disk.
Two independent parity computations must be used in order to
provide protection against double disk failure. Two different
algorithms are employed to achieve this purpose. RAID 6
requires a minimum of 4 disks. RAID 6 can sustain two failed
disks.
RAID 10 has high reliability and high performance. RAID 10 is
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