Thecus Technology N8800 Manuel D’Utilisation

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iSCSI Capacity 
Indicates the capacity allocated to iSCSI. 
RAID Config 
Press this to configure RAID volumes. 
Space Allocation 
Press this to adjust the space allocated for data and iSCSI. 
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 
 
 
RAID Level 
You can set the storage volume as JBODRAID 0RAID 1RAID 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 Description 
JBOD 
The storage volume is a single HDD with no RAID support. JBOD 
requires a minimum of 1 disk. 
RAID 0 
Provides data striping but no redundancy. Improves 
performance but not data safety. RAID 0 requires a minimum of 
2 disks. 
RAID 1 
Offers disk mirroring. Provides twice the read rate of single 
disks, but same write rate. RAID 1 requires a minimum of 2 
disks. 
RAID 5 
Data striping and stripe error correction information provided. 
RAID 5 requires a minimum of 3 disks. RAID 5 can sustain one 
failed disk. 
RAID 6 
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 
RAID 10 has high reliability and high performance. RAID 10 is 
implemented as a striped array whose segments are RAID 1 
arrays. It has the fault tolerance of RAID 1 and the performance 
of RAID 0. RAID 10 requires 4 disks. RAID 10 can sustain two 
failed disks. 
 
 
 
 
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RAID Configuration 
Using RAID Settings, you can select stripe size, choose which disks are RAID 
disks or the Spare Disk. . 
 
RAID Configurations 
Item Description 
RAID 
Check the boxes of the hard drives you wish to add to the 
storage volume. 
Master RAID 
Check a box to designate this as the Master RAID volume. See 
the 
NOTE
 below for more information. 
Disk No. 
Number assigned to the installed hard disks. 
If the adm
remov
inistrator improperly removes a hard disk that should not be 
ed when RAID status is Degraded, all data will be lost. 
WARNING