Edit Raid - Thecus N2810 Series User Manual

N8910 series
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
RAID 50
RAID 60
WARNING

Edit RAID

1. Select an existing RAID volume from the list.
2. Click on the Edit button, and the RAID volume setting screen appears.
3. Making the changes such as RAID name or role of master RAID if needed.
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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
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.
RAID 50 combines the straight block-level striping of RAID 0
with the distributed parity of RAID 5. This is a RAID 0 array
striped across RAID 5 elements. It requires at least 6 drives.
RAID 60 combines the straight block-level striping of RAID 0
with the distributed double parity of RAID 6. That is, a RAID 0
array striped across RAID 6 elements. It requires at least 8
disks.
If the administrator improperly removes a hard disk that should not be
removed when RAID status is degraded, all data will be lost.
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