ACTi PSTR-0400 User Manual
6G SAS NAS System
Hardware Manual
Revision 1.0
NAS System
Table of Contents
Preface ................................................................................................................................ 3
Before You Begin ............................................................................................................. 4
Chapter 1 Introduction ................................................................................................. 5
1.1 Key Features ............................................................................................................................................................. 5
1.2 Technical Specifications ....................................................................................................................................... 6
1.3 RAID Concepts ........................................................................................................................................................ 7
1.4 Array Definition ..................................................................................................................................................... 10
1.4.1 Drive Group ................................................................................................................................................... 10
1.4.2 Virtual Drive ................................................................................................................................................... 10
Chapter 2 Getting Started ......................................................................................... 11
2.1 Packaging, Shipment and Delivery ............................................................................................................... 11
2.2 Unpacking the NAS System ............................................................................................................................. 11
2.3 Identifying Parts of the NAS System ........................................................................................................... 12
2.3.1 Front View ...................................................................................................................................................... 12
2.3.1.1 LCD Front Panel .................................................................................................................................. 13
2.3.2 Rear View ........................................................................................................................................................ 15
2.4 Drive Carrier Module .......................................................................................................................................... 16
2.4.1 Disk Drive Status Indicators .................................................................................................................... 16
2.4.2 Lock Indicator ............................................................................................................................................... 16
2.5 Installing Hard Drives ......................................................................................................................................... 17
2.6 Preparing the System ......................................................................................................................................... 18
2.7 Powering On .......................................................................................................................................................... 18
Chapter 3 RAID Configuration and Management ................................................ 19
3.1 WebBIOS Configuration Utility ....................................................................................................................... 19
3.1.1 Starting the WebBIOS Configuration Utility .................................................................................... 19
3.1.2 WebBIOS CU Main Screen Options ..................................................................................................... 20
3.2 Configuring RAID Drive Groups and Virtual Drives ............................................................................... 22
3.2.1 Using Auto Configuration ........................................................................................................................ 24
3.2.2 Using Manual Configuration: Creating RAID 5 Virtual Drives .................................................. 25
3.3 Creating Global Hot Spare ............................................................................................................................... 33
3.4 Restarting the Controller .................................................................................................................................. 35
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Preface
About this manual
his manual provides information regarding the hardware features, installation
and configuration of the SAS NAS System. Information contained in the
manual has been reviewed for accuracy, but not for product warranty because
of the various environment/OS/settings. Information and specifications will be
changed without further notice. Some pictures and screenshots might be
different with the actual machine.
This manual uses section numbering for every topic being discussed for easy and
convenient way of finding information in accordance w ith the user’s needs. The fol lowing
icons are being used for some details and information to be considered in going through
with this manual:
Copyright
No part of this publication may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying,
recording or otherwise, without the prior written consent.
Trademarks
All products and trade names used in this document are trademarks or registered
trademarks of their respective owners.
Changes
The material in this document is for information only and is subject to change without
notice.
NOTES:
These are notes that contain useful information and tips
that the user must give attention to in going through
with the subsystem operation.
IMPORTANT!
These are the important information that the user must
remember.
WARNING!
These are the warnings that the user must follow to avoid
unnecessary errors and bodily injury during hardware and
software operation of the subsystem.
CAUTION:
These are the cautions that user must be aware of to
prevent damage to the equipment and its components.
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Before You Begin
efore going through with this manual, you should read and focus on the
following safety guidelines. Information about the NAS system’s packaging
and delivery are also included. To provide reasonable protection against any
harm on the part of the user and to obtain maximum performance, user is
advised to be aware of the following safety guidelines particularly in
handling hardware components:
Upon receiving of the product:
Place the product in its proper location.
To avoid unnecessary dropping out, make sure that somebody is around for
immediate assistance.
It should be handled with care to avoid dropping that may cause damage to the
product. Always use the correct lifting procedures.
Upon installing of the product:
Ambient temperature is very important for the installatio n site. It must not
exceed 30°C. Due to seasonal climate changes; regulate the installation site
temperature making it not to exceed the allowed ambient temperature.
Before plugging-in any power cords, cables and connectors, make sure that the
power switches are turned off. Disconnect first any power connection if the power
supply module is being removed from the enclosure.
Outlets must be accessible to the equipment.
All external connections should be made using shielded cables and as much as
possible should not be performed by bare hand. Using anti-static hand gloves is
recommended.
In installing each component, secure all the mounting screws and locks. Make
sure that all screws are fully tightened. Follow correctly all the listed procedures
in this manual for reliable performance.
Controller Configuration
This NAS system supports single RAID controller configuration.
Packaging, Shipment and Delivery
Before removing the subsystem from the shipping carton, you should visually
inspect the physical condition of the shipping carton.
Unpack and verify that the contents of the shipping carton are complete and in
good condition.
Exterior damage to the shipping carton may indicate that the contents of the
carton are damaged.
If any damage is found, do not remove the components; contact the dealer where
you purchased the subsystem for further instructions.
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Chapter 1 Introduction
The NAS System
NAS System
1.1 Key Features
- Configurable to 19" rack-mountable 2U chassis
- Intel Sandy Bridge / Ivy Bridge inside
- Supports up to Twelve (12) 2.5" and 3.5'' hot-swappable 6G SAS/SATA hard drives
- Supports RAID levels 0, 1, 5, 6, 10, 50, 60
- Support three Gigabit Ethernet port for NAS file-sharing application
- Supports Tape/DAT backup/restore (Option)
- Smart-function LCD panel
- Supports hot spare and automatic hot rebuild.
- Allows online capacity expansion within the enclosure
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1.2 Technical Specifications
Hardware Platform
Intel Quad Core Xeon 3.1GHz processor
System Memory：4GB DDR3 SDRAM up to 32GB
Three Gigabit Ethernet ports (option for 10Gigabit Ethernet)
Up to Twelve (12) 2.5" and 3.5” hot-swappable 6Gb SAS/SATA hard drives
Real time drive activity and status indicators
Environmental monitoring unit
Two(2) 460W 80plus hot-swap power supplies with PFC
Expansion PCI slot for H/W upgrade
RAID Controller
800MHz RAID-On-Chip storage processor
RAID level RAID 0, 1, 5, 6, 10, 50, 60
Supports 512MB DDRII cache memory
Support drive hot spare and automatic hot rebuild
Allow online capacity expansion within the enclosure
Locally audible event notification alarm
Environmental
Relative humidity : 10%~85% Non-condensing
Operating temp : 10oC~40oC(50oF~104oF)
Power requirements
AC 100V ~ 240V Full range
10A ~ 5A, 47~63Hz
Physical Dimension
88(H) x 482(W) x 620(D) mm
Specifications are subject to change without notice.
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1.3 RAID Concepts
RAID Fundamentals
The basic idea of RAID (Redundant Array of Independent Disks) is to combine multiple
inexpensive disk drives into an array of disk drives to obtain performance, capacity and
reliability that exceeds that of a single large drive. The array of drives appears to the
host computer as a single logical drive.
Five types of array architectures, RAID 1 through RAID 5, were originally defined; each
provides disk fault-tolerance with different compromises in features and performance. In
addition to these five redundant array architectures, it has become popular to refer to a
non-redundant array of disk drives as a RAID 0 arrays.
Disk Striping
Fundamental to RAID technology is striping. This is a method of combining multiple
drives into one logical storage unit. Striping partitions the storage space of each drive
into stripes, which can be as small as one sector (512 bytes) or as large as several
megabytes. These stripes are then interleaved in a rotating sequence, so that the
combined space is composed alternately of stripes from each drive. The specific type of
operating environment determines whether large or small stripes should be used.
Most operating systems today support concurrent disk I/O operations across multiple
drives. However, in order to maximize throughput for the disk subsystem, the I/O load
must be balanced across all the drives so that each drive can be kept busy as much as
possible. In a multiple drive system without striping, the disk I/ O load is never perfectly
balanced. Some drives will contain data files that are frequently accessed and some
drives will rarely be accessed.
By striping the drives in the array with stripes large enough so that each record falls
entirely within one stripe, most records can be evenly distributed across all drives. This
keeps all drives in the array busy during heavy load situations. This situation all ows all
drives to work concurrently on different I/O operations, and thus maximize the number
of simultaneous I/O operations that can be performed by the array.
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Definition of RAID Levels
RAID 0 is typically defined as a group of striped disk drives without parity or data
redundancy. RAID 0 arrays can be configured with large stripes for multi-user
environments or small stripes for single-user systems that access long sequential records.
RAID 0 arrays deliver the best data storage efficiency and performance of any array type.
The disadvantage is that if one drive in a RAID 0 array fails, the entire array fails.
RAID 1, also known as disk mirroring, is simply a pair of disk drives that store duplicate
data but appear to the computer as a single drive. Although striping is not used within a
single mirrored drive pair, multiple RAID 1 arrays can be striped together to create a
single large array consisting of pairs of mirrored drives. All writes must go to both drives
of a mirrored pair so that the information on the driv es is kept identical. However, each
individual drive can perform simultaneous, independent read operations. Mirroring thus
doubles the read performance of a single non-mirrored drive and while the write
performance is unchanged. RAID 1 delivers the best performance of any redundant array
type. In addition, there is less performance degradation during drive f ailure th an in RAID
5 arrays.
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Under RAID 5 parity information is distributed across all the drives. Since there is no
dedicated parity drive, all drives contain data and read operations can be overlapped on
every drive in the array. Write operations will typically access one data drive and one
parity drive. However, because different records store their parity on different drives,
write operations can usually be overlapped.
RAID 6 is similar to RAID 5 in that data protection is achieved by writing parity
information to the physical drives in the array. With RAID 6, howev er, two sets of parity
data are used. These two sets are different, and each set occupies a capacity equivalent
to that of one of the constituent drives. The main advantage of RAID 6 is High data
availability – any two drives can fail withou t loss of critical data.
Dual-level RAID achieves a balance between the increased data availability inherent in
RAID 1 and RAID 5 and the increased read performance inherent in disk striping (RAID
0). These arrays are sometimes referred to as RAID 0+1 or RAID 10 and RAID 0+5 or
RAID 50.
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In summary:
RAID 0 is the fastest and most efficient array type but offers no fault-tolerance. RAID
0 requires a minimum of one drive.
RAID 1 is the best choice for performance-critical, fault-tolerant environ ments. RAID
1 is the only choice for fault-tolerance if no more than two drives are used.
RAID 5 combines efficient, fault-tolerant data storage with good performance
characteristics. However, write performance and performance during drive failure is
slower than with RAID 1. Rebuild operations also require more time than with RAID 1
because parity information is also reconstructed. At least three drives are required
for RAID 5 arrays.
RAID 6 is essentially an extension of RAID level 5 which allows for additional fault
tolerance by using a second independent distributed parity scheme (two-dimensional
parity). Data is striped on a block level across a set of drives, just like in RAID 5, and
a second set of parity is calculated and written across all the drives; RAID 6 provides
for an extremely high data fault tolerance and can sustain multiple simultaneous
drive failures. It is a perfect solution for mission critical applications.
1.4 Array Definition
1.4.1 Drive Group
A Drive Group is a group of physical drives attached to the RAID controller, and where
one or more Virtual Drives (VD) can be created. All Virtual Drives in the Drive Group use
all of the physical drives in the Drive Group.
It is not possible to have multiple Disk Groups on the same physical disks. If physical
disks of different capacity are grouped together in a Drive Group, then the capacity of
the smallest disk will become the effective capacity of all the disks in the Drive Group.
1.4.2 Virtual Drive
A Virtual Drive is seen by the operating system as a single drive or logical device. A
Virtual Drive is a storage unit created by the RAID controller from one or more physical
drives. If there is an existing Drive Group and there is available Free Space, then a new
Virtual Drive can still be created.
Depending on the RAID level used, the Virtual Dr ive may retain redun dant data in
case of a drive failure.
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Chapter 2 Getting Started
2.1 Packaging, Shipment and Delivery
Before removing the subsystem from the shipping carton, you should visually
inspect the physical condition of the shipping carton.
Unpack and verify that the contents of the shipping carton are complete and in
good condition.
Exterior damage to the shipping carton may indicate that the contents of the
carton are damaged.
If any damage is found, do not remove the components; contact the dealer where
you purchased the subsystem for further instructions.
2.2 Unpacking the NAS System
The package contains the following items:
NAS System Unit
Two (2) power cords
Three (3) Ethernet LAN cables
One (1) external serial cable
One (1) RS232 null modem
cable (phone jack to DB9)
One (1) USB-to-PS/2
converter cable
Installation Reference Guide
Spare screws, etc.
If any of these items are missing or damaged, please contact your dealer or sales
representative for assistance.
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