Infortrend A24F-R2224 4U 24-Bay Rackmount A24F-R2224-15 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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.  Redundant RAID controllers
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.  BBUs per controller                           
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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 

1

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

O

   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)

Based on a proven architecture designed 
for continuous operation with heavy 
access loads, the EonStor A24F-R2224 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 EonStor A24F is powered by field-proven 

technologies that ensure data protection and 

performance to meet various storage needs.  Data is 

secured by sophisticated, redundant 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, RAID 

controller, 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.    

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 subsystem is also equipped with error containment 
algorithms, known as the SysSmart functions.  If a 
critical component fails, e.g., a battery 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.  

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.  

. Market leading I/O performance
       - Sustained RAID5 Read/Write: 770/460 (MB/sec)
. Ultra-high-density, 4U-profile, 24-bay enclosure
. Dual Active redundant controller
. Support RAID Level 0, 1(0+1), 3, 5, 6, 10, 30, 50, 60, 
  NRAID, JBOD
. Separate Host I/O board design
. Max. Connections for 8 host servers
. Four (4) FC-2G host channels
. Up to 12TB of storage capacity
. Support up to 2GB DDR RAM module
. Hot-swappable battery backup unit (BBU)
. Designed for SATA-II disk drives
. Ease of maintenance with host-swappable FRUs
. External UPS support