Storage Overview













Write Accelerator



RamSan-630 highlights:
  • 4-10 TB SLC Flash storage
  • 500,000 IOPS random sustained throughput
  • 8 GB/s random sustained throughput
  • 450 watts power consumption

To order, please contact Texas Memory Systems Sales.


The RamSan-630 is a rack-mounted SLC NAND Flash SSD that provides plenty of shareable, high performance storage for IT organizations that need to respond to the growing storage and performance needs of their users and applications. One RamSan-630 system can replace an entire rack of high-end HDD. SLC Flash and innovative controller designs give the RamSan-630 enterprise reliability and data protection. With capacity options of 4-10TB in a 3U enclosure that uses only 450 Watts, the RamSan-630 can handle data growth very efficiently. It installs quickly and easily and is managed in the same way as our other RamSan systems, integrating seamlessly into almost any SAN environment using Fibre Channel connectivity. The RamSan-630 is extremely versatile and especially well suited for performance-demanding applications such as high performance computing, data warehouses, and batch processing.

Flash has enabled TMS to deliver high performance storage solutions to a much broader customer base. For over 30 years we have been at the forefront of storage performance and application acceleration for enterprises. With this 16th generation RamSan-630 we are combining expertise and technology to solve challenging problems of performance and efficiency in enterprises of all types and sizes.

The RamSan-630 offers scalable performance and affordable high capacity that is space and power efficient as well. A single 3U unit provides from 4 to 10TB of reliable Single Level Cell (SLC) Flash, making the RamSan-630 the highest density SLC Flash SSD product on the market. Throughput is 8GB per second and latency ranges from 80 to 250 microseconds, 25 times less than high performance hard disk drives.

Each RamSan-630 unit can support 2 to 10 Fibre Channel (FC-341) ports. Installation and management are simple, with embedded management capabilities and clear displays. One or more RamSan-630s can easily be integrated into a mixed storage infrastructure and monitored and managed through a common management framework.

Enterprise-grade Data Protection
The RamSan-630 provides enterprise-grade data protection features at the chip, board, and system levels. At the chip level, TMS uses only Single-Level Cell (SLC) Flash memory which has 10x greater endurance and reliability than other Flash chip architectures. Additionally, each Flash chip incorporates an Error Checking and Correction (ECC) within the chip to check and correct single-bit errors. At the board level, each set of Flash chips is organized as a board-level RAID, thereby eliminating any single chip failure from corrupting data.

At the system level, the RamSan-630 allows you to designate one of the cards inside the system as an active-spare that works hand-in-hand with the chip level RAID on each of our boards. If one of the cards experiences a failure that degrades its RAID protection, the system will immediately migrate the data on that card to the hot-spare to return to a fully redundant state. At that point, the failed card will be inactive and can be swapped during the next scheduled maintenance downtime. Having the active-spare means that a faulty card can be swapped in a matter of minutes without the need to migrate all 10TB of data off and back on to the RamSan.

Finally, the RamSan-630 offers data management options for data protection as well. Logical Storage Units (LUN) can be designated in multiple configurations, including the option of assigning a separate LUN to each of the RamSan-630’s 8 (4TB) or 20 (10TB) Flash cards. This flexibility allows you to mirror LUNs for maximum data protection.

The RamSan-630 has the features you expect from Texas Memory Systems products:

  • A complete Flash storage system in a 3U rack
  • Low overhead, low Power, and high performance
  • High IOPS, bandwidth, and capacity
  • Standard management capabilities
  • Active Spare for ultimate system reliability
  • Two Flash ECC protection levels
  • Includes Super Caps for orderly power down
  • Separate LUNs assignable per internal RS-630 Flash card
  • 512 byte block support, as well as the standard 4K block
  • Fibre Channel interfaces
  • Infiniband interfaces
  • Easy installation
  • Scalable, expandable, flexible
  • Low initial cost of ownership
  • Low incremental upgrade cost
  • Easy incremental addition of performance and capacity


I/Os Per Second

500,000 read

400,000 write



4-10 TB of SLC Flash



8 GB per second



Writes: 80 microseconds

Reads: 250 microseconds


Fibre Channel Connection

  • 2-Gigabit or 4-Gigabit Fibre Channel
  • 2 ports standard; up to 10 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 (Expected Q3 2010)
  • QDR InfiniBand (10-Gigabit)
  • 1 port standard; up to 5 ports available
  • Supports SRP upper level protocol
  • Interoperable with InfiniBand Host Channel Adaptors, switches, and operating systems


  • Browser-enabled system monitoring, management, and configuration
  • SNMP supported
  • Telnet management capability
  • SSH management capability
  • Front panel displays system status and provides basic management functionality

LUN Support

  • 1 to 1024 LUNs with variable capacity per LUN
  • Flexible assignment of LUNs to ports
  • Separate LUNs assignable per internal RS-630 Flash card
  • 512 byte block support, as well as the standard 4K block

Data Retention

  • Completely nonvolatile solid state disk

Reliability and Availability

  • Layer 1: ECC (chip)
  • Layer 2: board-level RAID
  • Layer 3 (optional): Active Spare (system)
  • Internal redundancies
       - Power supplies and fans
  • Hot-swappable components
       - Power supplies



5.25" (3U) X 20 "


Power Consumption (typical)

450 Watts


Weight (maximum)

55 lbs