Storage Overview













Write Accelerator

RamSan PCIe Family Highlights:
  • 225GB-450GB SLC Flash storage
  • 120,000 sustained IOPS
  • 700 MB/s random sustained external throughput
  • ECC and RAID
  • Embedded CPU controller

To order, please contact Texas Memory Systems Sales.


The World’s Fastest Storage® Solution in Your Server

The RamSan-10 and the RamSan-20 are both high performance Flash SSDs on a PCI card. This family of SSD products establishes the reference standard in PCI Flash architectures with industry leading sustained performance, reliability, and density. Their simplicity and affordability bring high performance storage solutions within reach of mainstream businesses and applications. The RamSan-10 and the RamSan-20 display TMS' unique ability to architect and engineer the future of solid state storage, leveraging over 30 years of SSD innovation and 10 years of PCI architectural expertise.

Both product designs leverage the power of Texas Memory Systems’ Fault Tolerant Flash (FTF) architecture. Because of their comprehensive on-board management suite, the RamSan-10 and the RamSan-20 have little to no impact on host resources and data is not lost during server crashes or power loss. The RamSan-20 is the highest capacity enterprise grade PCIe SLC Flash product on the market and provides far better sustained performance and reliability characteristics than competing products. The RamSan-10 is the ideally optimized product for applications requiring extraordinarily low latencies at smaller capacity points such as those run on scientific workstations or stand alone servers.

Both cards are easily installed in a server to transfer data much faster than other Flash drives and hundreds of times faster than traditional mechanical hard disks. They allow users to simply snap in an extraordinarily fast SSD for caching, application acceleration, and ruggedness without the space, power, and management overhead associated with traditional storage expansion.

The RamSan-10 and the RamSan-20 offer a simple, economical choice for accelerating single-server applications that require large, fast buffer areas and those that are random access intensive. Databases, video editing, financial modeling, data acquisition, simulations, and Web content are a select few examples of applications that will benefit from the use of both of the cards' remarkable capabilities.

The RamSan-10 and the RamSan-20 both deliver a complete storage system on a PCIe card. They minimize latency between processors and storage and are easily installed in minutes. The RamSan-10 delivers 225GB of usable Flash, making it an ideal design for those applications that require extremely low latencies at a smaller capacity. The RamSan-20 delivers 450GB of usable Flash, making it the highest capacity enterprise class PCIe SLC Flash card on the market today. To ensure the greatest possible performance and reliability, these cards both utilize Single Level Cell (SLC) Flash. And both also incorporate extra Flash capacity for write acceleration and two levels of data protection, ECC and RAID.

The RamSan-10 and the RamSan-20 both offer unparalleled sustained performance, delivering 120,000 IOPS for random read operations. With their fast PCIe connection, the RamSan-10 and the RamSan-20 have a direct low-overhead connection to main memory that eliminates disk controllers, disk cables, and disk chasses.

The RamSan-10 and the RamSan-20 have the standard features you would expect from an enterprise storage design. Quite simply they are designed for performance, reliability, and ease of use, with these key features:

  • A storage system on a PCI card
  • Low overhead, high performance
  • High IOPS, bandwidth, and capacity
  • Low power requirements
  • ECC and RAID
  • Embedded wear-leveling PowerPC
  • Four Flash FPGA controllers
  • Quick and easy to install

One of the single greatest assets the RamSan-10 and the RamSan-20 possess is the use of an onboard CPU. With an onboard processor to manage the Flash memory functions, these cards stand head and shoulders above the rest in the PCI Flash SSD market. Their design limits the theft of CPU cycles or RAM space from the host system, thus allowing the host system to do its core job of processing and managing application requests and needs.

The RamSan-10 and the RamSan-20 use SLC NAND Flash for the storage medium. SLC is superior in almost every facet: faster, more resilient, and much easier to manage than its consumer counterpart, MLC.

The RamSan-10 and the RamSan-20 are easy to install, easy to manage block level devices. Once their driver has been installed, they appear as a standard block device. At this point the products may be partitioned and formatted to a file system, not unlike any other enterprise hard disk drive arrangement.

Automatic Error Checking
Storage data integrity is provided by the use of SLC Flash chips with two independent methods of ECC. Each Flash chip incorporates an ECC data field within the chip for initial checking. Additionally, each Flash controller on the RamSan-10 and the RamSan-20 is responsible for 10 and 20 Flash chips respectively in RAID-5 configuration, thereby eliminating any single chip failure from corrupting data storage. The Flash wear-leveling algorithm runs on the embedded PowerPC, providing real-time quality assurance independent of the host computer.

Fault Resilient
The RamSan-10 and the RamSan-20 were designed from the chip up with the enterprise in mind. With their onboard processor design, 2 levels of error correction coding, RAID functionality for the Flash, use of SLC Flash, and a sophisticated wear leveling algorithm, the RamSan-10 and the RamSan-20 are both truly enterprise ready, fault resilient PCIe SSDs.

The RamSan-10 and the RamSan-20 provide extraordinary performance while typically consuming a very modest 15 watts of power. Being this powerful yet Earth friendly can only be described using one word, PEP - Powerful, Efficient Performance. At 120,000 sustained IOPs and only 15 watts, the RamSan-10 and the RamSan-20 both deliver 8,000 sustained read IOPS per watt drawn.


225GB or 450GB
Block Size
4 KBytes
Sustained IOPS
120,000 random read
50,000 random write
80,000 R/W, R-70%
Burst IOPS
140,000 random read
158,000 random write
700 MB/sec read
675 MB/sec write
50 µs
PowerPC: 333MHz
    6 or 12 Years (25% writes)
PCI-e (x4)
15 watts