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| | TMS Main | RamSan-300 | RamSan-400 | RamSan-440 | RamSan-500 | RamSan-5000 | Tera-RamSan | |
| | RamSan-20 | |
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The
Tera-RamSan Solid State Disk System |
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Tera-RamSan highlight features: • Up to 1 Terabyte of non-volatile DDRRAM in 24U. • Unlimited overall capacity • Over 3.2 million random I/O requests per second. • Over 24 GB/second of random sustainable data bandwidth. • Up to 512 physical LUNs. • Requires 2,500 watts of power. • Up to 8 independent non-volatile solid state disks (SSD) modules. Each SSD module is a RamSan-400, including 128 GB of DDRRAM and up to eight 4-Gbit Fibre Channel connections or four 4x InfiniBand ports. 
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Scalable and Versatile SSD Platform TMS has responded to the need for a fast, scalable platform for data storage with the Tera-RamSan solid state disk (SSD) system. The Tera-RamSan holds between 384 and 1024 GB of fast, non-volatile DDRRAM storage in three to 8 independent SSD modules, each containing its own wide array of redundant high-availability features. If more capacity is required, simply install additional modules without interruption of the system. The user is given maximum versatility to configure the Tera-RamSan. Since the Tera-RamSan appears as typical storage to the network (up to 512 LUNs), users can arrange some or all of the independent SSD modules in the RAID configuration of their choosing. Other modules may remain independent if desired. The Tera-RamSan represents our solution to realistic requests from a broad range of entities from the U.S. Military to Fortune 500 companies who have requested Terabyte solid state disks for applications such as: • Database acceleration • High definition video access/editing • OLTP • Data retrieval • ERP • SAN storage • And more Lower DDRRAM prices make the Tera-RamSan a realistic competitor to other Enterprise storage solutions with much smaller RAM caches. The Tera-RamSan offers industry leading price-per-IOPS. The Tera-RamSan incorporates specially designed 4-Gbit Fibre Channel or 4x InfiniBand interfaces that include performance-enhancing hardware to reduce I/O latency to under 14 microseconds. With I/O requests being served so quickly, an order-of-magnitude more requests per second are executed by a single Tera-RamSan interface as compared to other Fibre Channel interfaces. By scaling SSD modules up to 8 units (8 Fibre Channel links per unit or 4 InfiniBand links per unit), the Tera-RamSan is the ultimate storage solution for high-performance applications in total IOPS and total bandwidth. Also, because the Tera-RamSan is DDRRAM based, there is NO penalty for RANDOM accesses. Data requests need not be tuned for performance. User access time is not compromised, even if tens of thousands of users access the system simultaneously. Extreme performance is the key feature of the Tera-RamSan. High Availability and Reliability Each Tera-RamSan module contains its own internal backup and battery systems, ensuring the persistence of data even in the case of total power loss. Should one or all of the modules lose power, internal batteries keep the unit active for one hour. After a user-specified period of time, the unit backups all of its data to internal redundant, hot swappable hard disks if power has not yet been restored. In addition, each SSD module includes redundant, hot swappable cooling fans and redundant, hot swappable power supplies -- each with an independent power input. Manageability The Tera-RamSan solution is conceived as both a single system and the combination of independent storage subsystems. The manageability features of the Tera-RamSan reflect this fact. At the independent module level, each SSD has the same manageability features as the RamSan-400 SSD, including Telnet configuration functionality, an on-site front panel display, SNMP compatibility, and a browser-based Java monitoring applet. Administrators may view all modules at once through the TeraWatch monitoring software. This presents a summary view of all installed SSD modules, providing a single point to monitor the performance and any potential problems with the SSD modules. Since the SSD modules are SNMP compatible, this can also be achieved through whatever standard SNMP listening application is commonly used. Technical Specs I/Os Per Second 3,200,000+ Capacity 384 GB - 1 TB Bandwidth 24 GB per second Latency Less than 15 microseconds Fibre Channel Connection • 4-Gigabit Fibre Channel (2-Gigabit capable) • Up to 64 ports available • Supports point-to-point, arbitrated loop, and switched fabric topologies • Interoperable with Fibre Channel Host Bus Adaptors, switches, and operating systems InfiniBand Connection • 4x InfiniBand (10-Gigabit) • Up to 32 ports available • Supports SRP upper level protocol • Interoperable with InfiniBand Host Channel Adaptors, switches, and operating systems Management • Browser-enabled system monitoring, management, and configuration • SNMP supported • Telnet management capability • Front panel displays system status and provides basic management functionality • Tera-Watch monitoring software allows you to view all RamSan modules at once. LUN Support • Up to 64 LUNs per module with variable capacity per LUN • Flexible assignment of LUNs to ports • Hardware LUN masking Data Retention • Non-volatile solid state disk • Redundant internal batteries power the system for 25 minutes after power loss • Automatically backs up data to disk at 90 MB/sec Reliability and Availability • ECC memory error protection • Internal redundancies - Power supplies and fans - Backup battery power (n+1) - Backup hard disk drives (RAID3) • Hot-swappable components - Four backup hard drives (front access) - Power supplies Backup Procedures Supports two backup modes that are configurable per system or per LUN: • Data Sync mode - synchronizes data to redundant internal disk drives before shutdown or with power loss • Active BackupTM mode (optional) - backs up data constantly to internal redundant disks without impacting system performance. Size (9U to 24U) X 27" Power Consumption (peak) 900 - 2,500 Watts Weight (maximum) 270 - 720 lbs
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