NEC Express5800/R120d-1M Configuration Guide download pdf (Page 15)

CONFIGURATION GUIDE – Express5800/R120d-1M

NEC Corporation Revision 1.0, March 2012

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 six 2.5-inch Drives

Up to eight 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.

 An optional RAID controller occupies one PCI slot.

 All hard drives within a RAID array should be of the same capacity and rotation speed.

 Use the same rotational speed of the SAS Hard drives.

 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.

 Up to two kinds of drives can be mixed in one system

 For mix configuration, the same kind of hard drives are mounted starting with Slot 0 sequentially, and

the remaining slots can mount different kind of hard drives.

 For SAS and SATA hard drive mix configuration, they must be installed in separate drive groups with

multiple of two drives.

Refer to 4.2.5

Refer to 4.2.6

Refer to 4.2.7

RAID 0/1/10

RAID 5/6/50/60

512MB Cache

1GB Cache

512MB Cache

Refer to 4.2.1

Refer to 4.2.2

Refer to 4.2.3

RAID 5/6/50/60

RAID 0/1/10

Non-RAID

512MB Cache

1GB Cache

Refer to 4.2.4

SATA HDD/SSD, SAS HDD/SSD

Available Disk

SATA HDD/SSD

SATA HDD/SSD, SAS HDD/SSD

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NEC Express5800/R120d-1M Configuration Guide Page 15