Texas Memory Systems

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Texas Memory Systems, Inc.
Type Subsidiary
Industry Solid State Storage
Digital signal processing
Founded 1978
Headquarters Houston, Texas, United States
Area served Worldwide
Key people Holly Frost, (Founder)
Products solid-state disks
Digital signal processors
Parent IBM
Website ramsan.com
Flash based rackmount SSD
Flash based PCIe SSD
DDR SDRAM based rackmount SSD

Texas Memory Systems, Inc. (TMS) is a privately held American corporation that designs and manufacturers solid-state disks (SSDs) and digital signal processors (DSPs). TMS was founded in 1978 and that same year introduced their first solid-state drive,[1] followed by their first digital signal processor. In 2000 they introduced the RamSan line of SSDs which have evolved through new models available today. Based in Houston, Texas, they continue to supply these two product categories (directly as well as OEM and reseller partners) to large enterprise and government organizations.[2][3]

TMS has been supplying SSD products to the market longer than any other company.[4]

On August 16, 2012, IBM Corporation announced a definitive agreement to acquire Texas Memory Systems, Inc. This acquisition was completed as planned on October 1, 2012.[5][6]


Flash and RAM SSDs[edit]

Most TMS SSDs are designed to operate with any compatible system, but a few are specifically designed to accelerate Oracle applications. They are all part of the RamSan product line.[7]

TMS produces the following categories of SSDs:

  • RAM-based systems

The following are some of TMS' key storage products:

Product Name Form Factor Storage Medium Max Usable Capacity (GB) Speed (IOPS) Latency (microseconds) Bandwidth (GB/s)
RamSan-440[8] 4U rackmount DRAM 512 600,000 15 4.5
RamSan-630[9] 3U rackmount SLC Flash 10,000 1,000,000 80 10
RamSan-70[10] PCIe SLC Flash 900 1,500,000 30 2.5
RamSan-710[11] 1U rackmount SLC Flash 5,000 400,000 35 5
RamSan-810[12] 1U rackmount eMLC Flash 10,000 400,000 25 4
RamSan-720[13] 1U rackmount SLC Flash 12,000 500,000 25 5
RamSan-820[14] 1U rackmount eMLC Flash 24,000 450,000 25 4


Most of the TMS DSP products are part of the XP product line.[15]

  • PCIe Accelerator cards
  • DSP Processors


  1. ^ Klein, Dean (2009-02-09). "History of Digital Storage. Part 6: The RAM SSD and NAND". Micron. Retrieved 2010-07-02. 
  2. ^ "Texas Memory Systems main website". TMS. Retrieved 2011-08-01. 
  3. ^ "Texas Memory Systems". IBM. Retrieved 2010-07-02. 
  4. ^ Kerekes, Zsolt. "Texas Memory Systems". ACSL. Retrieved 2010-06-05. 
  5. ^ "IBM Announcement". IBM. Retrieved 2012-08-17. 
  6. ^ "TMS Announcement". TMS. Retrieved 2012-08-17. 
  7. ^ "http://www.ramsan.com/products". TMS. Retrieved 2011-12-06. 
  8. ^ "RamSan-440". TMS. Retrieved 30 September 2011. 
  9. ^ "RamSan-630". TMS. Retrieved 30 September 2011. 
  10. ^ "RamSan-70". TMS. Retrieved 3 April 2012. 
  11. ^ "RamSan-710". TMS. Retrieved 3 April 2012. 
  12. ^ "RamSan-810". TMS. Retrieved 3 April 2012. 
  13. ^ "RamSan-720". TMS. Retrieved 3 April 2012. 
  14. ^ "RamSan-820". TMS. Retrieved 3 April 2012. 
  15. ^ "http://www.ramsan.com/products/digital-signal-processing-line". TMS. Retrieved 3 April 2012. 

External links[edit]