- SCSI-320 to SATA-II single controller
RAID subsystem
- Hardware XOR engine by dedicated ASIC
chipsets
- Tower or desktop stackable enclosures
- Dual-speed fans to reduce noise
- Enhanced modular enclosure design
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| RAID |
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Multiple arrays configurable with dedicated
or global hot spares
RAID levels supported: RAID 0, 1 (0+1),
3, 5, 10, 30, 50, NRAID and JBOD
Online expansion by:
Adding new drives
Copying and replacing drives with drives of larger capacity
Automatic background rebuilds
Configurable stripe size and write policy per array
Intelligent drive handling:
In degraded mode: skips irreparable blocks to continue
rebuild
In normal operation: data-block verification and repair
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| Intelligent
Drive Handling |
In degraded mode: skips irreparable blocks
to continue rebuild
In normal operation: data-block verification
and repair
Multiple arrays configurable with dedicated
or global hot spares
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| Host
Interface |
Two (2)
SCSI-320 channels through four (4) VHDCI 68-pin SCSI ports;
SCSI-160 backward compatible
Concurrent I/O commands
Tagged command queuing up to 256
Variable stripe sizes per logical drive
Optimization setting for random or sequential I/Os
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| Drive
Interface |
Eight (8)
3Gbps SATA-II, hot-swappable drive trays that accommodate
1-inch pitch, 3.5-inch SATA-I or SATA-II disk drives
Automatic bad-sector reassignment
Dedicated bandwidth to each connected drive
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| System
Components |
Subsystem
components include
Single controller configuration provides
full RAID functionalities
One (1) tower/desktop convertible enclosure
One (1) RAID controller module
One (1) 128MB SDRAM DIMM module (pre-installed module)
Two (2) 250W power supply units
Two (2), hot-swappable, redundant, single-fan cooling modules
running in high/low speeds
Eight (8) hot-swappable drive trays
Optional battery backup unit (BBU)
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| Management
|
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Front LCD control panel for setup and
configuration
10/100 BaseT Ethernet for out-of-band management
One (1) RS-232C serial port for local access to firmware-embedded
utility
VT-100 terminal emulation via RS-232C
Telnet access via onboard Ethernet port
Java-based RAIDWatch® GUI manager:
Cross-platform, remote administration with SSL
Out-of-band access via Ethernet
Centralized management to monitor and administer multiple
RAID units on one screen
Configuration Client for real-time event notification
over Email, Fax, LAN broadcast, SNMP Traps, MSN messenger,
ICQ, SMS short messages, and the configuration utility
screen
SNMP agent support:
SNMP trap event notification with plain-text event message
(no MIB file required)
SNMP V2.0 MIB file support with get-and-set commands
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| SNMP
agent support |
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SNMP trap event notification with plain-text
event message (no MIB file required)
SNMP V2.0 MIB file support with get-and-set commands
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| Indicators |
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Onboard alarm is triggered when one of
the following modules fails:
RAID controller module
Cooling module
Power supply unit
Hard drive
Notification Processing Center (NPC) for real-time event
notification over email, LAN broadcast, or SNMP traps
Module status LED indicators:
Two (2) per drive tray
One (1) per cooling module
One (1) per power supply unit
Three (3) per LCD panel
Six (6) per RAID controller module
Module failure alert through bus
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| Auto
switch cache policy and Auto shutdown |
When a RAID
controller detects conditions exceeding preset thresholds,
the following actions are initiated to protect the hardware:
Cached data is automatically flushed
and the array’s caching mode switches from write-back
to write-through mode.
If conditions persist past the preset
period of time, auto shutdown of the controller will commence.
All thresholds associated with this mechanism are user
configurable and, once a subsystem manager restores the
normal operating conditions, the caching mode reverts
from write-through to write-back mode.
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| Intelligent
Drive Handling |
If two bad
blocks occur on two member drives of an array, the integrity
of the stored data is endangered. Media Scan, Infortrend’s
innovative intelligent drive handling function, retrieves
data from the damaged sectors. Media Scan handles low quality
drives in both the degraded mode and during the rebuild
process. For additional data security, other intelligent
drive management features include the transparent resetting
of non-responsive hard drives, power-failure management,
and bad-drive handling during LD expansion.
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| Physical/Electrical |
Interfaces
Dual-stack VHDCI, 0.8mm LVDS SCSI connectors
One (1) audio jack RS-232C serial port (38400, n, 8, 1)
One (1) RJ-45 Ethernet port
Power Supplies
Two (2) redundant hot-swappable power supplies with PFC
Input: 90 to 260VAC, 47 to 63Hz
Output: (250 Watts Max.)
+12.0V 16A max
+ 5.0V 20A max.
+ 3.3V 20A max.
Cooling Fans
Two (2) redundant, single-fan cooling modules
Fan speed:
High temperature: 4500rpm
Low temperature: 3700rpm
Maximum air flow:
High temperature: 1.50m3/min
Low temperature: 1.21m3/min
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| Environmental
Specifications |
Operating
temperature: 0~40°C
Non-operating temperature: -40 to 65°C
Relative humidity: 5~95%, non-condensing
Operating altitude: Operating: 0~10,000 ft
Non-operating: 0~40,000 ft
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