SYSTEM CONFIGURATION GUIDE
–
NEC Express5800/R120h-2E
NEC Corporation
Revision 6.0
– January 2019
39
RAID controller configuration
Capacity of Logical drive can be within 2TB with legacy boot mode, capacity of logical drive can be within the total capacity of
logical disks with UEFI boot mode.
As the factory shipment, initial cache policy of RAID controllers is Write Through for N8103-189, Write back for N8103-190.
RAID configuration for the default factory shipment
Available RAID level is determined by the RAID configurations and the number of drives as below.
RAID configuration for
shipment
Number of Drives
Number of Drives in RAID levels
Non RAID
1
~
8
Non
Embedded RAID(On-board
RAID) configuration (RAID
0/1/10)
1
RAID0 (Single drive)
2
RAID1
3
2 in RAID1
、
1 for hot spare
4/6/8
4/6/8 in RAID10
5/7
4/6 in RAID10, 1 for a hot spare
RAID controller
configuration(RAID 0/1/10)
1
RAID0(Single drive)
2
RAID1
3
2 in RAID1, 1 for a hot spare
4/6/8
4/6/8 in RAID10
5/7/9
4/6/8 in RAID10, 1 for a hot spare
10
8 in RAID10, 2 in RAID1
11
8 in RAID10, 2 in RAID1, 1 for a hot spare
12/14/16
8 in RAID10, 4/6/8 in RAID10
13/15/17
8 in RAID10, 4/6/8 in RAID10, 1 for a hot spare
18
2x 8 in RAID10, 2 in RAID1
19
2x 8 in RAID10, 2 in RAID1, 1 for a hot spare
20/22/24
2x 8 in RAID10, 4/6/8 in RAID10
21/23/25
2x 8 in RAID10, 4/6/8 in RAID10, 1 for a hot spare
26
3x 8 in RAID10, 2 in RAID1
RAID controller configuration
(RAID 0/1/5/6/10)
1
RAID0(Single drive)
2
RAID1
3-8
RAID5
9
8 in RAID 5, 1 in RAID0 (Single drive)
10
8 in RAID 5, 2 in RAID 1
11-16
8 in RAID 5, 3-8 in RAID5
17
2x 8 in RAID 5, 1 in RAID0 (Single drive)
18
2x 8 in RAID 5, 2 in RAID 1
19-24
2x 8 in RAID 5, 3-8 in RAID5
25
3x 8 in RAID 5, 1 in RAID0 (Single drive)
26
3x 8 in RAID 5, 2 in RAID 1