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The Momentum A2404E RAID subsystem is powered by dual-active or a single RAID controller. Each RAID controller comes with four (4) SAS multi-lane host ports that are defined as IN ports and OUT ports. The OUT ports can be used to connect the IN ports of other A24S systems in order to expand capacity and to multiply RAID computing power. By cascading A24 enclosures on the host links, the throughput from multiple systems can be joined and the 12Gbps bandwidth per port can be leveraged. |
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The A24 RAID enclosure is designed with all the sophisticated high availability features including redundant RAID controllers, a common backplane, dedicated cross-controller ‘sync. cache’ channels, redundant cooling and power supply modules. Highest performance and spindle density is achieved within the compact design which provides dozens of terabytes in a 4U chassis.
The A24 takes advantages of SAS interface technology in terms of its ease of cabling and many folds of bandwidth compared with its SCSI predecessors. The system accommodates high capacity and low-cost SATA-II 3Gbps disk drives. With the additional cascade ports, RAID or expansion enclosures can be easily attached to include a total of an astonishing 264TB capacity (using 1TB SATA drives). As a capacity champion, the A24S does not compromise on its data protection functionality. The A24 supports RAID levels 0, 1, 3, 5, 6, multi-level logical volumes, and all the renowned firmware functionality as other EonStor series models. |
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EonPath: The EonPath drivers coordinates with Microsoft MPIO, runs on Solaris and Linux platforms, and provides fault tolerance for multiple data paths and load-balancing algorithms. The EonPath also enables TPGS (Target Port Group Service) for optimizing I/Os through the optimal paths.
Snapshot: Snapshot enables point-in-time backup with high fidelity and minimal impact to ongoing applications. More significant is that the snapshot operation is processed by RAID hardware without load on host CPUs. Snapshot also features dedicated snapshot volumes, automated snapshot scheduler, and comprehensive disk space control.
SANWatch: SANWatch provides all functions necessary to discover, configure, administer, and monitor Infortrend’s RAID arrays; be they remote or many. The SANWatch also provides management interfaces for EonPath and Snapshot functions, so that all data protection and high availability features can be accessed through one interface. |
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Similar to Fibre Channel expansion loops, SAS expander technologies also enable the ease of connections when the need arises for more capacity. All you have to do is to attach the cables and use a flatblade screwdriver to select an enclosure ID by a rotary switch. The SAS WWN addresses will be automatically applied to all disk drives.
- A single-controller RAID can attach to 4 expansion enclosures (64 HDD) via SAS wide links.
- A redundant-controller RAID can attach to 2 expansion enclosures. Although the maximum no. of disk drives is reduced to 56, yet fault-tolerant links can be strung between RAID and JBOD enclosures.
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Each A24 RAID controller comes with 4 multi-lane 12Gbps host ports. Host interfaces are defined as the IN and OUT ports. The OUT ports can either be used as host connection points or for cascading to other RAID enclosures. |
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The A24 RAID series also supports the 3U-profile R1674 expansion enclosures as shown in the matching table below. |
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A2454E |
R1684 |
Dual-controller; fault-tolerant paths |
A2404E |
R1674 |
Single-controller; single path |
| NOTE: JBOD connection requires the SFF-8088-to-SFF-8470 cables. |
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Cabling options can be found in the accessory list. You may also find cabling details in user’s documentation. |
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Every Momentum model has undergone a series of environmental and compatibility tests to verify its design and minimize your integration efforts. You may contact our sales representatives for the reports on these tests. The Momentum series has a rich variety of firmware functions that adapt it to various applications. You can contact our technical support with your application features so they can help tune the adaptive firmware options. |
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If using 1TB SATA drives in this configuration, a maximum of 264TB capacity can be included for a direct-attached configuration. SAS cables are strung along the cascade ports of the 3 RAID enclosures, and expansion enclosures are attached to each RAID system.
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- Redundant-controller RAID – 2 JBOD (Momentum R1684)
- Single-controller RAID – 4 JBOD (Momentum R1674)
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- Mini SAS SFF-8088
- 4 PHY ports per Mini SAS connector
- Concurrent I/O commands
- Tagged command queuing up to 1024
- Max. command queue up to 1024
- Mini SAS ports for cascading on A16S
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RAID level 0, 1(0+1), 3, 5, 6, 10, 30, 50, 60; arrays of different RAID levels can co-exist in a configuration. |
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- A2454E - 8 SFF-8088 multi-lane SAS
- A2404E - 4 SFF-8088 multi-lane SAS
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- 24 SATA HDD via a common backplane
- Drive-side expansion via a SAS multi-lane SFF-8088 per controller
NOTE: expansion to the S16S JBOD requires SFF-8088-to-SFF-8470 cables |
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Height |
174.4mm(6.86 inches) |
174.4mm(6.86 inches) |
Width |
445mm(17.5 inches) |
482mm(19 inches) |
Length |
498mm (19.6 inches) |
514mm (20.2 inches) |
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520(H) x 580(W) x 780(D)mm (20.5 x 22.8 x 30.7 inches) |
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Gross weight – 41kg; Net weight – 38kg (without disk drives |
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100VAC @ 8A
240VAC @ 4A with PFC (auto-switching)
Capacity per PSU: 405W |
| 50 to 60Hz |
| 434W: R2130; 408.9W: G2130 (max.) |
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Operating: 5% to 90% (non-condensing)
Non-operating: 5% to 95% (non-condensing) |
Operating: 0º to 40ºC (32º F to 104º F)
0º to 35ºC (32º F to 95º F, if BBU is applied)
Non-operating: -40º to 60ºC (-40º F to 149º F) |
Operating: 3,658m (12,000 ft.)
Non-operating: 12,192m (40,000 ft.) |
Operating: 5G, half-sine, 11ms pulse width
Non-operating: 15G, half-sine, 11ms pulse width
Package: 60G, half-sine, 11ms pulse width |
(Random)
Operating: 5 to 500Hz, 0.25Grms, X/Y/Z Sine
Non-operating: 5 to 500Hz, 1.88Grms, X/Y/Z Sine
(Sine)
Operating: 5 to 500Hz, 0.2Grms, X/Y/Z Sine, 30min/sweep
Non-operating: 5 to 500Hz, 1.0Grms, X/Y/Z Sine, 30min/sweep |
| 65dBA boundary, 60dBA normal |
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- IEC 60068-2,
- MIL-STD-810E/883E,
- ISTA,
- ASTM-D3332,
- IPC-TM-650
- IEC 1000-4
- IEC 1000-3-2, IEC 1000-3-3
- ISO 7779/3744
- RoHS
- Microsfot WHQL-Windows Server 200
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- CE
- EN 55022: 1998/A1: 2000/A2: 2003
- EN 61000-3-2: 2000/A2: 2005
- EN 61000-3-3: 1995/A1: 2001
- EN 55024: 1998/A1: 2001/A2: 2003
- FCC (FCC Part 15, subpart B)
- BSMI (CNS 13438)
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- UL (60950-1: 2003)
- BSMI
- CNS 14336: 1993
- IEC 60950-1, First Edition
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