CONFIGURATION GUIDE
–
NEC Express5800/R120d-2E Storage-Rich
NEC Corporation
Revision 7.0
– October 25, 2013
17
4 Internal Hard Disk Drives
4.1
RAID Configuration
Refer to the section in accordance with your disk form factor and RAID configuration.
4.1.1
2.5-inch Drive Model
Up to twenty four 2.5-inch Drives
Up to twenty six 2.5-inch Drives
NOTE:
All drives within a RAID array should be of the same type, capacity and rotation speed. Also, hard
drives in the back side (slot 24 to 25) must be in a separate RAID array than RAID arrays of hard
drives in the front side (slot 0 to 23) for configuration 4.2.4 to 4.2.6.
Dedicated Hot Spare / Global Hot Spare are supported by using RAID controller card (PCI Express).
However, Global Hot Spare is not supported on the configuration 4.2.4 to 4.2.6. Also, hard drives in
the back side cannot be used as Hot Spare drives of a RAID array of hard drives in the front side and
front side drives cannot be used as Hot Spare drives of a RAID array of hard drives in the back side.
Up to two kinds of drives can be mixed in a 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.
For optional RAID controller driver to install Windows Server 2003 R2, download from the NEC
website at:
http://www.nec.com/en/global/prod/express/download/index.html
RAID 5/6/50/60
512MB Cache
1GB Cache/
Battery
Refer to
4.2.5
Refer to
4.2.6
Refer to
4.2.7
RAID 0/1/10
SAS, SATA
SAS, SATA
SAS, SATA
Available Interface
1GB Cache/
CacheVault
Refer to
4.2.8
SAS, SATA
RAID 5/6/50/60
RAID 5/6/50/60
512MB Cache
1 GB Cache
1GB Cache/
Battery
Refer to
4.2.1
Refer to
4.2.2
Refer to
4.2.3
RAID 0/1/10
RAID 0/1/10
SAS, SATA
SAS, SATA
SAS, SATA
SAS, SATA
SAS, SATA
SAS, SATA
Available Interface
Available Interface
1GB Cache/
CacheVault
Refer to
4.2.4
SAS, SATA
SAS, SATA
