Description
The MM-5460CN can be integrated
into storage filers, servers and controllers
that have an available PCI slot. Memory on the
PCI bus is mapped into I/O space, which easily
creates a separate and distinct memory partition
for functions such as journaling and caching.
The card has been specifically designed to
provide dramatic improvements in applications
that are I/O bound. In particular, applications
that involve file journaling, sequential
logging, or frequent disk I/O’s such as
transaction processing, file serving, and data
warehousing can benefit significantly by
implementing solid state NVRAM on the PCI bus.
The MM-5460CN is a full length
PCI card with a 64-bit/66MHz PCI interface and
512MB to 8GB of NVRAM. Redundant, rechargeable
lithium ion batteries are on-board to provide
data retention in the event of a power loss.
Status LED lights are software programmable and
battery status registers in the CSR can be
enabled to monitor battery voltages. The battery
circuitry and failover have been refined over
twenty-five years of product development to
ensure the utmost in data retention and
availability.
Because the MM-5460CN resides on
the PCI bus, I/O transfers to memory are only
limited by bus speeds instead of a cable
interlink which usually has significant latency.
The card’s non-volatility features also enable
data to be retrieved after a power failure or
system reset. Because the card utilizes solid
state memory, there is no head seek time as
experienced with rotating storage media. This,
combined with the card’s data retention
capabilities, make the MM-5460CN the ideal
solution for journaling and caching.
MM-5460CN Product
Specification Sheet (PDF file format)
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