SYSTEM CONFIGURATION GUIDE
–
NEC Express5800/R120e-2M
NEC Corporation
Revision 3.0
– January 16, 2014
21
4 Internal Hard Disk Drives
4.1
RAID Configuration
Refer to the section in accordance with your disk form factor and RAID configuration.
Up to eight 2.5-inch Drives
Up to sixteen 2.5-inch Drives
NOTE:
Up to four hard drives can be installed in the Embedded SATA configuration.
Hot plug insertion/removal are not supported in the Embedded SATA configuration.
All drives within a RAID array should be of the same type, capacity and rotation speed.
Up to two kinds of drives selected from SAS 10K HDDs, SAS 15K HDDs, SATA HDDs and SAS SSDs
can be mixed in each drive cage.
To configure a large-capacity RAID array, it is recommended to configure in RAID 6 or RAID 60 in
order to minimize the risk of becoming multiple hard drives failure during the RAID rebuilding process.
It is recommended to set RAID array configuration drives less than eight in order to minimize the risk
of becoming multiple hard drives failure.
1GB Cache /
Battery
512MB Cache
Refer to
4.2.1
Refer to
4.2.2
Refer to
4.2.3
Refer to
4.2.4
SATA
RAID 5/6/50/60
RAID 0/1/10
Non-RAID
Available Interface
SAS, SATA
SAS, SATA
SAS, SATA
1GB Cache /
CacheVault
Refer to
4.2.5
SAS, SATA
RAID 5/6
512MB Cache
1GB Cache /
Battery
Refer to
4.2.6
Refer to
4.2.7
Refer to
4.2.8
RAID 0/1/10
SAS, SATA
SAS, SATA
SAS, SATA
Available Interface
1GB Cache /
CacheVault
Refer to
4.2.9
SAS, SATA
