NEC ST1240 User manual

ST1240 Disk Expansion Unit
Configuration Guide
Introduction
This document contains product and configuration information that will enable you to configure your system. The
guide will ensure fast and proper configuration of your storage system.
May 2012
Revision 1.0
NEC Corporation

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 2.1, October 2011 2
Contents
TECHNICAL SPECIFICATION........................................................................................3
Key Features..........................................................................................................................................3
Specification..........................................................................................................................................3
EXTERNAL VIEWS .........................................................................................................4
Front and Rear Views ...........................................................................................................................4
Dimensions (mm)..................................................................................................................................6
UNIT CONFIGURATION..................................................................................................7
1External Drive Configuration........................................................................................................7
COPYRIGHT NOTICE AND LIABILITY DISCLAIMER ...................................................8
REVISION HISTORY .......................................................................................................9

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 2.1, October 2011 3
Technical Specification
Key Features
Compact direct attached storage
Twelve 3.5-inch drive bays in 2U enclosure
Flexible configuration with SAS and SATA mixed installation
Superior reliability with hot plug redundant power supplies and redundant fans
Specification
Model
ST1240 Disk Expansion Unit
Part Number
N8141-51F
Storage
Maximum Capacity
24 TB SATA / 7.2 TB SAS
Hot Plug
Supported
Drive Bays
12
Interfaces
One SFF-8088 mini-SAS Connector
Redundant Fan
Optional, hot plug
Redundant Power Supply
Optional, hot plug
Power Supply
Two 450 Watt hot plug PSU
100-240 VAC ± 10% 50 / 60 Hz ± 3 Hz
Maximum Power Consumption
450 VA / 430 Watt
Dimensions (W x D x H )
480.0 x 540.0 x 86.5 mm / 18.8 x 21.2 x 3.4 in (2U)
Weight (Minimum / Maximum)
17 kg / 29 kg, 37.48 lbs. / 63.93 lbs.
Temperature, Relative Humidity
(non-condensing)
Operating: 10° to 35° C / 50° to 95° F, 20 to 80%
Non-Operating: -10° to 55° C / 14° to 131° F, 20 to 80%

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 4
External Views
Front and Rear Views
Front View
Front Bezel Installed
Front Bezel Removed
Legend
A.
Service LED
C.
Hard Drive Activity/Fault LED
B.
Power LED
D.
Drive Bays
A B
AB
C C
D

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 5
Rear View
Legend
A.
AC Inlet
F.
SFF-8088 mini-SAS Connector
B.
Power Good LED
G.
SAS Fault LED
C.
Power Fault LED
H.
SAS Link LED
D.
Fan Fault LED
I.
Controller Ready LED
E.
Power Button
J.
Controller Fault LED
A B C D
E F GH I J

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 6
Dimensions (mm)

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 7
Unit Configuration
1 External Drive Configuration
Category
Product Name / Description
Part Number
Storage Controller
Required
RAID Controller (512MB, RAID0/1/5/6)
Promise SuperTrak EX8768
RAID 0/1/5/6, 512MB, Ext. 8, PCIe 2.0 x8, SAS 6Gb/s, SATA
3Gb/s, LP / FH
N8103-135
RAID Controller (512MB, RAID0/1/5/6)
LSI MegaRAID SAS 9285-8e
RAID0/1/5/6/10/50/60, 1GB, Ext. 8, PCIe 2.0 x8, SAS 6Gb/s,
SATA 6Gb/s, LP / FH
N8103-160
RAID BBU
Recommended
RAID Battery Backup Unit
for Promise SuperTrak EX8760T and EX8768
N8103-140
RAID Battery Backup Unit
for LSI MegaRAID SAS 9285-8e
N8103-162
Cable
1 to 2 Required
External SATA Cable
2 m, 1 x SFF-8088 to 1 x SFF-8088
K410-191(02)
Enclosure
1 to 2 Required
ST1240 Disk Expansion Unit
12 x 3.5-inch Hot-plug hard drive bays
N8141-51F
Drive
12 slots
available
SAS
HDD
300GB HDD
1 x 300 GB SAS HDD, 3.5-inch, 6Gb/s, 15,000 rpm
N8150-324
450GB HDD
1 x 450 GB SAS HDD, 3.5-inch, 6Gb/s, 15,000 rpm
N8150-325
600GB HDD
1 x 600 GB SAS HDD, 3.5-inch, 6Gb/s, 15,000 rpm
N8150-326
SATA
HDD
1TB HDD
1 x 1 TB SATA HDD, 3.5-inch, 3Gb/s, 7,200 rpm
N8150-327
2TB HDD
1 x 2 TB SATA HDD, 3.5-inch, 3Gb/s, 7,200 rpm
N8150-328
NOTE:
Storage controllers must be compatible with the server connected.
More than four disk drives must be installed.
All hard drives within a RAID array should be of the same capacity and rotation speed.
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.
Any of RAID arrays cannot be used as a boot device.

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 8
Copyright Notice and Liability Disclaimer
The information contained herein is subject to change without notice.
All other products, brands, or trade names used in this document are trademarks or registered trademarks
of their respective holders.
NEC shall not be liable for technical or editorial errors or omissions contained herein.

CONFIGURATION GUIDE –ST1240 Disk Expansion Unit
NEC Corporation Revision 1.0 May 2012 9
Revision History
Revision
Date
Description
1.0
May 17, 2012
Initial release