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SAS
RAID: ADAPTEC 52445 vs ARECA 1680ix
We all know that Adaptec
and Areca are two of the biggest names in RAID
technology today. However, one is a newcomer,
while the other is a seasoned veteran with accolades
a mile long. Today, we look at their to-end
offerings in terms of SAS RAID adapters used in
conjunction with Seagate's Cheetah 15k.7 HDDs, no
doubt the fastest magnetic HDD out there.
First, the Adaptec
ASR-52445:
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Highlights |
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Intelligent Power
Management |
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28 (24 internal/4
external) ports |
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Half-length/full height
form factor |
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1.2GHz Dual Core RAID on
Chip (ROC) processor |
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8-Lane PCI-Express bus
interface |
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0, 1, 1E, 5, 5EE, 6, 10,
50, 60, JBOD RAID levels |
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Support for Hybrid SSD/HDD
RAID 1, 10 |
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512MB DDR2 cache |
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6 SFF-8087 (int.); 1
SFF-8088 (ext.)
connectors |
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Up to 256 SATA or SAS
devices using SAS
expanders |
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Adaptec Storage Manager,
Copyback Hot Spare
management features |
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Battery backup
(optional) |
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RoHS compliant |
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3 year warranty |
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Complete List of
Supported Operating
Systems |
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Supported Operating
Systems |
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Microsoft Windows
Red Hat Linux
SUSE Linux
SCO OpenServer
UnixWare
Sun Solaris
FreeBSD
VMware ESX
For a detailed list see ASK
Answer ID 15317 |
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Benefits |
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Performance Unified
Serial RAID controller
supports both SATA and
SAS devices. Ideal for
bandwidth intensive
storage applications;
NAS, OLTP servers, web
servers, and digital
surveillance. |
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Key Differentiators |
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Intelligent Power
Management |
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Customer Needs |
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High I/O transaction and
high bandwidth
processing. |
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Cache Memory |
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512MB of DDR2 memory |
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RAID Levels |
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RAID levels 0, 1, 1E, 5,
5EE, 6, 10, 50 and 60 |
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Key RAID Features |
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Supports 28
direct-attached or up to
256 SATA or SAS disk
drives using SAS
expanders
RAID levels 0, 1, 1E,
5, 5EE, 6, 10, 50 and 60
Quick initialization
Online Capacity
Expansion
Copyback Hot Spare
Dynamic caching
algorithm
Native Command Queuing
(NCQ)
Background
initialization
Hot-plug drive support
RAID Level Migration
Hot spares global,
dedicated, and pooled
Automatic/manual
rebuild of hot spares
SAF-TE enclosure
management
Configurable stripe
size
S.M.A.R.T. support
Up to 512TB array
sizes
Multiple arrays per
disk drive
Bad stripe table
Dynamic sector repair
Staggered drive
spin-up
Bootable array support
Optimized Disk
Utilization |
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Bus System Interface
Type |
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8-lane PCIe |
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External Connectors |
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1 external (SFF-8088)
Mini SAS |
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Internal Connectors |
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6 internal (SFF-8087)
Mini SAS |
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Data Transfer Rate |
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3 Gb/s per port |
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Package Contents |
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Adaptec RAID 52445
Controller
Quick Installation
Guide
(English/French/German/Italian/Spanish)
Software and
documentation CDs
Cables: six internal
Mini SAS x4 to (4x) SATA
fanout cables w/
sideband (2247000-R),
0.5 meter
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Management
Utilities
Adaptec Storage
Manager (ASM)
Java-based GUI
Management Utility
Remote
configuration,
monitoring
& notification
ASM OS Support:
Windows, Linux, SCO,
Solaris, FreeBSD
Microsoft VDS
Support
SNMP, SMTP
Remote firmware
updates
ARCCONF
Command Line
Interface
Adaptec BIOS Utility
(ACU)
BIOS level
configuration
utility
Flashable BIOS
support
Physical Size
4.6 H x 6.43 L
(116mm x 164mm)
Operating
Temperature
0°C to 55°C* (with
200 LFM airflow;
without battery)
0°C to 40°C* (with
200 LFM airflow;
with battery)
Note: This Adaptec
card contains a
powerful RAID
processor which
requires adequate
airflow to operate
reliably. Please
install this card
only into server or
PC chassis with
recommended airflow
(200 LFM).
* Ambient
temperature measured
1" away from the
RAID processor
Operating
Voltage
0.47 amp @ 3.3V
1.8 amp @ 12V
Regulatory
Certification
CE, FCC, UL,
C-tick, VCCI
Mean Time Before
Failure (MTBF)
873,402 hours at 40
degree C.
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Next, the Areca
ARC-1680ix-16:
System Architecture |
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Intel Dual Core 1200 MHz IOP348
I/O processor for RAID core and
SAS microcode |
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512MB on-board DDR2-533 SDRAM
with ECC protection
(ARC-/1680ix-8/1680ix-12/16l) |
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One 240-pin DDR2-533 DIMM socket
with default 512MB of SDRAM with
ECC protection, upgrade to 4GB
(ARC-1680ix-12/16/24) |
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Support write-through or
write-back cache |
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Support 4 to 24 internal and 4
to 8 external SAS ports |
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Multi-adapter support for large
storage requirements |
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BIOS boot support for greater
fault tolerance |
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BIOS PnP (plug and play) and BBS
(BIOS boot specification)
support |
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Support extreme performance RAID
6 function |
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NVRAM for RAID event &
transaction log |
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Redundant flash image for
adapter availability |
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Battery Backup Module (BBM)
ready (option)
ARC-6120BA-T112 |
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RoHS Compliant |
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RAID Features |
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RAID level 0, 1, 10(1E), 3, 5,
6, 30, 50, 60, Single Disk or
JBOD |
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Multiple RAID selection |
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Online array roaming |
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Online RAID level/stripe size
migration |
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Online capacity expansion and
RAID level migration
simultaneously |
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Online volume set growth |
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Instant availability and
background initialization |
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Automatic drive insertion /
removal detection and rebuilding |
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Greater than 2TB per volume set
(64-bit LBA support) |
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Disk scrubbing/ array verify
scheduling for automatic repair
of all configured RAID sets |
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Support spin down drives when
not in use (MAID) |
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Support NTP protocol synchronize
RAID controller clock over the
on board Ethernet port |
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Disk Bus Interface |
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4/8/12/16/24 internal/SAS ports
or 4/8 external SAS ports |
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Up to (128) SAS or SATA II
drives using SAS expanders |
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Up to 3Gb/s per port |
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Host Connectivity |
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PCIe x8 lane width host
interface |
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Monitors/Indicators |
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System status indication through
global HDD activity/fault
connector, individual fault
connector, LCD/I2C connector and
alarm buzzer |
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SMTP support for email
notification |
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SNMP support for remote manager |
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Enclosure management (SES2,SMP
and SGPIO) ready |
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RAID Management |
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Field-upgradeable firmware in
flash ROM |
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In-Band Manager |
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Hot key "boot-up" McBIOS RAID
manager via M/B BIOS |
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Web browser-based McRAID storage
manager via ArcHttp proxy server
utility |
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Support Command Line Interface (CLI) |
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API library for customer to
write monitor utility |
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Single Admin Portal (SAP)
monitor utility |
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Disk Stress Test (DST) utility
for production |
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Out-of-Band Manager |
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Firmware-embedded web
browser-based McRAID storage
manager, SMTP manager and SNMP
agent and Telnet function via
Ethernet port |
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API library for customer to
write monitor utility |
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Support Push Button and LCD
display panel |
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Operating System |
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Windows 7/2008/Vista/Server
2003/XP/2000 |
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Linux |
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FreeBSD |
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Novell Netware 6.5 |
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Solaris 10 x86/x86_64 |
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SCO Unixware 7.x.x |
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Mac OS 10.4.x/10.5.x/10.6.x (EFI
BIOS support) |
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Environmental/Physical |
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Mechanical |
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Dimension: |
ARC-1680-i/1680LP/1680x:
69(H) x 168(L) mm
ARC-1680ix-8: 69(H) x
210(L) mm
ARC-1680ix-12/16/24:
98.4(H) x 237.5(L) mm
ARC-1680ixl-12/16: 69(H)
x 240(L) mm |
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Environmental Specifications |
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Operating: |
Temperature:+5°c
to +50°c |
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Humidity: 15-80% |
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non-condensing |
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Storage Temperature: |
Temperature:-40°c
to 70°c |
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Humidity: 5-90% |
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non-condensing |
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Electrical |
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Power Requirements: |
1.10W max. +3.3V |
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10.92W max. +12V |
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TEST RESULTS >>>
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