Infortrend A24F-G2224 4U 24-bay rackmount A24F-G2224-15 User Manual

Availability

Reliable Storage Networking Solution Provider

www.infortrend.com

www.infortrend.com

Serviceability

S p e c i f i c a t i o n s

Reliability

Subsystem Characteristics
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.  BBUs per controller(optional)            
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.  Serial 
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Drive Interface
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600MHz RISC CPU, 512KB L2 cache
ASIC266 RAID engine                       
DDR cache memory                          512MB 

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LCD keypad panel 

COM ports per controller         2

Ethernet ports per controller              1
Diagnostic LEDs on all FRUs

Number of disk trays                         24
Serial ATA II/I drive support

2Gbps SFP ports                                8

ingle channel bandwidth                 200MBps

Tag command queuing
Multiple target IDs 

RAID levels 0, 1(0+1), 3, 5, 6, 10, 30, 50, 60, 

   JBOD

Max. 32 logical drives                       
Max. 1024 LUNs                                
Multiple array configurations         
Automatic background rebuild      
Intelligent drive handling                 

H i g h l i g h t s

IOSmart

DrvSmart

SysSmart

Infortrend Smart Technologies

Redundant, and hot-swappable FRUs  
System self-diagnostics             

 battery backup module

UPS support

RAIDWatch Manager software 
Terminal via RS-232C            
Telnet over Ethernet              
LCD keypad panel                
Event notification methods: 

   Email                          
   Fax                              
   LAN broadcast           
   SNMP traps      
   Cell phone message                        SMS
   Instant messages                     MSN/ICQ

Microsoft Windows NT             
Microsoft Windows 2000 Server  
Microsoft Windows 2003 Server   
Sun Solaris ver. 8/9                       
Red Hat Linux ver. 8/9, Enterprise ver. 3                           
SUSE Linux ver. 8/9     

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.  Dedicated and Global hot spare 
.  Li-ION
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Requirements
.  Input Voltage: 
   90AC at 8A 264VAC at 4A with PFC        
   (auto-switching)
.  DC Output: 
   12V-24A; 5V-36A; 3.3V-20A
.  Relative Humidity: 
   5% to 95% non-condensing
.  Operating Temperature: 

O

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   0 C to 40 C

Dimensions
.  4U, 19-inch rackmount chassis
.  Chassis with handles:  
   447(W) x 174.4(H) x 514(D) mm 
   (17.6 x 6.86 x 20.2 inches)
.  Chassis without handles:   
   482(W) x 174.4(H) x 498(D) mm 
   (18.9 x 6.86 x 19.6 inches)

Derived from more than ten years of experience in RAID 
storage design, Infortrend's firmware features extremely 
compact protocol and rich varieties of algorithms to deal 
with the stringent requirements of storage applications.  
The technologies enhance I/O processing, drive 
handling, and system management.     

The IOSmart technologies consist of specific functions 
and configuration options that control various I/O 
characteristics in order to meet the rapidly increasing 
requirements of today's applications.  These functions 
include adaptable stripe size; write policy; optimizations 
modes; Guaranteed Latency I/O; and automatically 
adjusted, multi-threaded, predictive read-ahead, 
sorted, or group writes.  

DrvSmart is comprised of fault-preventive algorithms 
that ensure data integrity when hard drive imperfections 
occur.  These mechanisms correct minor defects, 
increase reaction time, allow more time to prepare a 
rebuild, and help minimize performance impact.  
DrvSmart functions include Media Scan and Task 
Scheduler, hot-spare, drive roaming, SMART and manual 
cloning options, and more.  

SysSmart combines enclosure monitoring and firmware 
management capabilities designed to minimize the 
chance of downtime caused by hardware failures.  With 
SysSmart, Infortrend's subsystems are smartly managed 
and guarded against extreme operating conditions.  

SysSmart functions include the event-triggered, 
adaptive write policy, auto-shutdown, dual-speed fan 
control, and the various monitoring utilities and 
approaches included in the powerful RAIDWatch Manager 
software.  

. Two (2) 2Gbps, bypass-embedded Fibre host channels 
. Separate I/O board 
. Max.8 host connection
. Supports 3Gbps SATA-II disk drives; backward 
  compatible with SATA-I disk drives 
. End-to-end performance up to 385MBps for Sequential 
  Reads and 315MBps for Sequential Writes in a RAID5 
  array
. Supports up to 2GB DDR RAM
. Supports RAID level 6
. Modular, passive backplane in a high-availability 
  architecture 
. Highest density 4U chassis providing up to 12TB of 
  storage capacity
. Optional hot-swappable battery backup units (BBUs)
. Dual-speed cooling fans to reduce system noise and 
  power consumption
. Ease of management through an LCD keypad panel, 
  RS-232C terminal, or an Ethernet link (TCP/IP) to a PC

R

  running Java-based RAIDWatch  Manager
. Real-time event notification by various methods

In addition to RAID protection against drive failure, 
the subsystem has ingenious means to deal with other 
challenges that may jeopardize data integrity.  For 
example, hard disks wear down over time and drives 
may arrive from the manufacturer with inherent 
defects.  Media Scan and Task Scheduler are among 
the DrvSmart utilities designed to detect and mend 
these problems.  

The EonStor A24F is powered by field-proven 

technologies that ensure data protection and 

performance to meet various storage needs.  Data is 

secured by sophisticated components and advanced 

firmware developed through a decade of experience in 

RAID technology.  In addition to the choice of RAID 

levels, 0, 1(0+1), 3, 5, 6, 10, 30, 50 and 60, the 

subsystem protects your data with various high-

availability algorithms ranging from predictive checking

and self-healing rebuilds to system self-diagnostics.   

To ensure a high level of availability, critical components

such as disk drives, power supplies, and cooling fans are

all redundant and hot-swappable.  Modules are 

integrated with the passive backplane via board-to-

board connectors to eliminate points of failure.  

Assisted by GUI management software, system 

administrators can constantly monitor the operating 

status of all components through a console locally or 

remotely situated.  The subsystem guarantees data 

integrity with selected, high MTBF components; a 

modular, fault-tolerant design; and a complete set of 

environmental monitoring and fault protection 

capabilities built in the firmware. 

All critical modules are housed in separate, easily 

retrievable canisters. In the event of component 

failure, a hard disk drive, power supply, battery 

module, or cooling fan can be replaced within seconds.  

The modules are closely monitored using self-

diagnostic features and the help of runtime utilities 

such as RAIDWatch.  Spring screws, securing latches, 

and key-locks all provide easier access to the modules.  

A variety of configuration and monitoring methods are 

available, either locally via the LCD keypad panel and 

the text-mode RS-232C terminal, or remotely through 

the Java-based GUI manager.  All faulty conditions, 

including RAID configuration events, module failure, 

voltage and temperature readings, are instantly 

reported.  A system administrator can select from the 

following notification methods to receive reports when 

away from the installation site: LAN broadcast, SNMP 

traps, email, fax, SMS, ICQ, and MSN Messenger.  Even 

the notification utility can be installed redundantly on 

two different machines to avoid the chance of blind 

time.    

Based on a proven architecture designed
for continuous operation with heavy 
access loads, the EonStor A24F-G2224 is
ideal for environments from SAN-attached
storage to performance-intensive 
applications operating within an open-
system and multi-path framework.   

This SAN-ready subsystem meets the 
demands for enterprise-class storage in 
terms of its reliable firmware, ease of 
management, fault-proof hardware, and 
on-the-fly scalability.  

The subsystem is also equipped with error containment 
algorithms, known as the SysSmart functions.  If a 
critical component fails, e.g., a cooling module, the 
subsystem automatically disables write-back caching 
and assumes the conservative write-through mode.   If 
the fault condition persists for an extended period of 
time, the subsystem enters an idle state.  All of these 
precautions help ensure safe operation and data 
integrity.