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| Introduction |
| The Alnico redundant RAID storage subsystem contains two controllers for redundancy and added performance. Each controller provides the counterpart controller with redundancy ability to help maintain normal access to Volume Sets in the event of one controller failure. When all the I/O paths (ports) on both controllers are properly combined together and the operating system multipathing I/O settings are correctly configured, nearly a double performance can be realized without sacrificing the path and controller redundancy ability. |
Redundancy behavior |
The Alnico redundant RAID storage subsystem implements ALAU (Asymmetric Logical Unit Access) algorithm which allows Volume Sets to be accessed by only one controller when both controllers are on-line. The controller, which controls the RAID Group, is the preferred controller and another controller is for standby. For example, RG #000 is controlled by controller 1, and the redundant RAID subsystem allows host server access RG #000 only through controller 1. Controller 2 would take over the data I/O if controller 1 fails.
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| Throughput Performance |
The Alnico redundant RAID storage subsystem : AL-8241iA-D is built with high performance dual-core storage processor, running ASIC-based RAID 5/6 parit check in one core, while TCP/IP and iSCSI off-loading task in the other. When properly configured, AL-8241iA-D are capable of achieving unsupassed 210,000 IO/sec, which is no doubt perfect fit for I/O demanding applications. In addtion, the redundant controller supports true active/active controller configuration, cache mirring / synchronization, controller hot-swapping, and capacity-scalable dual I/O JBOD connectivity.
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| ALNICO AL-8241iA-D |
New ! |
The Alnico AL-8241iA-D 10GbE iSCSI Dual controller RAID subsystem are PetaStor's innovative iSCSI-attached, redundant controller capable RAID subsystem utilizing Dual 10Gigabit Ethernet ports for iSCSI connectivity on each controller in a gigantic 4U 24-bay chassis. Alnico iSCSI family provides complete iSCSI SAN benefits such as easy deployment, SAN adaptability, quick implementation, and excellent price effectiveness.
 Alnico 24-bay iSCSI RAID subsystem is available for either redundant controller or single controller to flexibly satisfy the needs for various applications, the RAID controller is built with high performance dual-core storage processor, running ASIC-based RAID-5/6 parity check in one core, while TCP/IP and iSCSI off-loading task in the other. When properly configured, AL-8241iA-D are capable of achieving unsurpassed 210,000 IO/sec by dual controller, which is no doubt perfect fit for I/O demanding applications. In addition, the redundant controller supports true active/active controller configuration, cache mirroring / synchronization, controller hot-swapping, and capacity-scalable dual I/O JBOD connectivity.
Coupled with AL-8161Ji ( SAS Expander) supporting up to 72 SAS/SATAII devices connected. Alnico 8 iSCSI RAID provides the burgeoning applications with the most high-end data security without sacrificing performance concurrency.
Like every member of Alnico RAID, AL-8241iA-D not only stand out of their gigantic storage space but also inherits all features of Alnico Series: rock-solid housing, top-quality components, completely hot-swappable / redundant / cable-less / modularized designed, management simplicity in LCD panel or Web browser-based GUI. More to the point, SMBs and enterprises will be benefited by AL-8241i-D's budget-friendly affordability, and rewarded by quick and easy deployment with existing IP network infrastructure for applications such as virtualized storage environment, IP surveillance, storage consolidation, and on-line data replication. |
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- Intel next generation 81342 64-bit storage processor.
- Dual-port 10GbE iSCSI ( SFP+) on each controller. (AL-8241iA-D)
- Dual-active redundant controller operation with synchronized write-back cache
- Support link aggregation, Trunking, and LACP
- Built-in hardware snapshot and VD clone function.
- Support MPIO, and MC/S
- Support multiple iSCSI target nodes,
- Support CHAP and Jumbo Frame
- Support RAID Level 0, 1, 0+1, 3, 5, 6, 10, 50, 60, JBOD.
- Support on-line volume expansion and RAID level migration
- Support disk spin-down (MAID)
- Support SAS hard drive.
- Microsoft VSS compliant.
- Single or Dual I/O board JBOD expansion capable
- Complete modularized hot-swappable design for power supplies, cooling fans
- Management UI via serial console, SSH telnet, HTTP Web UI, and secured Web (HTTPS)
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| Intel 81342 64-bit storage
processor |
| Dual-active redundant controller operation with synchronized write-back cache |
| Up to 4GB DDRII 533Mhz
memory on one DIMM socket with ECC protection |
| Advanced PCI-E and 133Mhz/ 64-bit PCI-X buses
architecture |
| NVRAM and Real Time Clock supported |
| RAID Levels: 0, 1, 1E, 3, 5, 6, 50, 60, JBOD & N-way mirroring |
Up to 32 hard drives per volume group. |
| Global and dedicated hot spare disks |
| Online RAID level/stripe size migration |
| Offline Array roaming. |
| 1024 logical volumes in the system |
| SnapShot-on-the-box: Up to 16 LV supported with rollback enabled. Each Logical volume support up to 32 Snapshot volumes, total 512 snapshot volumes per system. |
| Auto drive insertion / removal detection and rebuilding. |
Online capacity expansion and RAID level migration simultaneously |
Disk auto spin-down support |
| Automatic drive insertion / removal detection and rebuilding |
| iSCSI Jumbo frame support |
iSNS & DHCP support |
| CHAP authentication enabled. |
Support Link aggregation/ Trunking |
| Microsoft MPIO & MC/S enabled. |
| Up to 32 Multiple iSCSI nodes support |
iSCSI GbE ports support independent access, failover, and load-balancing |
| Header/Data digest support |
| Up to 128 sessions per controller. |
| Up to 16 hosts clustered per volume. |
| Dual of 10GbE Ethernet iSCSI ( SFP+) per controller |
| 24 of SAS channel - by backplane (SAS Disk only) |
1 x miniSAS ( 4 linksx 3Gb) for expansion per controller |
| Field-upgradeable
firmware in flash ROM
& Automatic synchronization of firmware version in the redundant mode |
| Firmware-embedded
SMTP manager monitors all system events and user
can select either single or multiple user alerts
to be sent via e-mails |
| Management UI via firmware-embedded serial console, SSH telnet, HTTP Web UI, and secured Web UI (HTTPS). |
| LCD control panel for
setup, alarm mute and configuration |
| System status
indication through LCD, LED and alarm buzzer |
| All system events can
be sent to multiple user alerts via e-mails |
| Firmware-embedded SNMP
agent permits the remote to monitor all events
through LAN with no SNMP agent required |
| Two redundant,
hot-swappable cooling modules with self-regulating
speeds and wide range airflow design |
| Controlled by RAID
controller automatically maintaining optimal
ambient temperature |
| Redundant by Three 460W
power supplies with PFC, load-sharing type,
hot-swappable and cable-less design |
| AC Voltage 110-230 VAC
/AC Frequency 50-60Hz |
| Operating temperature:
5 to 35 degree C |
| Non-operating
temperature: -40 to 60 degree C |
| 20% to 80%
non-condensing |
| Dimensions: 446.5mm(W) x
550mm(D) x 4U |
| Weight (w/o HDDs):
38.0kg |
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