| Texas Memory Systems |
RamSan-500 |
Upto 2 terabytes of high performance flash SSD storage in a
single 4U rackmount with Fibre Channel or InfiniBand connectivity.
The
RamSan-500, TMS' 9th generation solid state disk, is the most important advance
in solid state disk storage in the last 20 years. The system is designed for
high IO data warehousing, high bandwidth data acquisition, and rich media
environments. The RamSan-500 is a hybrid of DDR RAM and Flash Memory (NAND-SLC).
The judicious use of DDR RAM cache and advanced Flash Memory architecture
extends the usability of this hybrid device into applications with large block
sequential or random writes, small block synchronous sequential writes and any
read-intensive application.
The DDR RAM cache (16-64GB) provides sub-20 microsecond cache hit
times and shelters the flash memory from small random data accesses. The data in
DDR RAM is protected with ECC and Chipkill. The DDR RAM cache is battery-backed
up with redundant batteries.
The Flash Memory (1-2TB usable capacity) is arrayed in 9 RAID-5
protected hot swappable modules. The reliability of each module is further
enhanced with ECC memory layouts, wear-leveling, and bad-block retirement. The
RamSan-500 uses NAND-SLC flash memory, the highest quality of flash memory
available on the market. The RamSan-500 is designed from the ground-up to
protect data from the problems inherent to traditional flash storage.
- 1TB to 2TB Flash RAID.
- 16GB to 64GB DDR Cache. 100,000 random I/Os per second sustained
(reads from flash)
- 2 GB per second sustained bandwidth (to flash)
- Full array of hardware redundancy to ensure availability.
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