To deliver the highest quality, most cost effective data storage
solutions to meet customer requirements within the highly demanding
markets of:
defense and aerospace
telecom
industrial automation and medical
transportation
Company Overview
Founded in March 1985, Adtron is a leading data storage company that
provides application-specific solutions to a variety of storage
requirements. Adtron products are focused on several key areas:
solid state flash disks
in-chassis storage blades
removable media drives
Our products cover the spectrum of reliability and durability,
including replacing single disk legacy drives with new technology,
onboard RAID implementations for non-stop operations, and non-fail solid
state data storage for the most rigorous applications.
Adtron leads the industry in delivering “smart” data storage
solutions based on a powerful, proven technology framework. Adtron is
unchallenged in delivering tailored, modular storage solutions with
unparalleled customer support. To a customer, Adtron strives to
understand and deliver solutions that meet and exceed their market
requirements, technical challenges and budgetary needs.
Adtron SmartStorage™
Adtron designs and builds standards-based data storage framework,
delivering world-class data solutions to the industrial marketplace.
Adtron SmartStorage™ framework delivers data storage solutions with
outstanding durability, reliability and high availability across a range
of storage media, such as solid state flash disks, rotating hard disks
and removable media, and host interfaces including SATA, IDE, SCSI and
Ethernet.
Durability refers to a device's ability to resist the effects of a
specific operating environment. Each type of storage media has its own
unique operating characteristics within an environment. Industrial
applications may vary greatly in their environments and, as a result, no
single storage media can be characterized as ideal in every case for a
specific embedded application. Harsh environments can significantly
affect the operating lifetime or mean time between failures (MTBF) of a
device. Therefore, environmental conditions must always be considered
when determining the durability specification for a storage device to
help ensure the required degree of system reliability. For example,
Adtron flash disks are designed for non-fail operations in defense and
aerospace applications, where the economic and human cost of lost data
is high.
Environmental attributes that affect durability of storage devices
include:
Reliability refers to the operating life of a device within a defined
functional usage—such as power-on time and activity duty cycle — as well
as its operating environment. Reliability is often referenced as a
statistical number called MTBF (mean time between failure). A number of
methods exist to predict and measure MTBF. At Adtron, MTBF is predicted
using MIL-HDBK-217 and Telcordia prediction methods with validation
performed through parametric and accelerated life testing. MTBF varies
based on the environment and the storage device durability. Where the
cost of lost data is high—such as in semiconductor wafer fabrication—a
flash disk may be the storage device of choice. In other industrial
applications—such as telecom access control and accounting node—mirrored
hard disks or a single hard disk may be adequate. Economic value
frequently determines the level of reliability required by an
application.
Considerations for determining application reliability requirements
may include:
Availability is a measurement of the percentage of time a system
operates properly during a given period. For most industrial
applications, the target availability is 100% during mission critical
times. In reality, however, with complex systems, the probability of a
failure reduces this metric down to less than 100%. For many systems, in
anticipation of a component failure, redundancy is built in to help
overcome the failure of any single component. Should a component fail,
availability is impacted by the fail-over time and the MTTR (mean time
to repair). Careful redundancy management yields high availability in
some systems up to five nine's (99.999%) availability.
A mirrored RAID disk system statistically has lower MTBF reliability
since it employs two disks instead of one. However, the redundancy also
provides enhanced failure management and higher availability. The
probability of a simultaneous failure of two parallel devices is
virtually zero. Therefore, if a failed disk can be replaced before a
second disk fails, the system may run non-stop. Adtron ActiveRAID™ disk
subsystems are designed to allow hard disk failure and replacement
without impacting system access to the redundant disk.
Considerations for determining application availability requirements
include:
Inherent reliability of the system components
Build-in redundancy of low reliability elements
Environmental affects on reliability and redundancy
effectiveness
Ability to repair and associated MTTR (mean time to repair)
Interface is the physical layer, such as connector and electrical
levels, as defined by standards such as SCSI, RS422 and ATA. These are
already chosen by the designer based on the computing platform.
‘Glues’ storage protocol and media management sections together and
establishes data handling processes including random access, fixed or
removable disk as well as sequential access including tape operations.
Based on the required durability, reliability and availability, the
choices for Media Management include Adtron ArrayPro™, Adtron ActiveRAID™
technology using either RAID 0, RAID 1, RAID 5 or JBOD.
It is desirable that the system storage element should perform to the
system reliability requirements within the specified environment. Adtron
offers the range of single disk, RAIDed disk and flash disk to encompass
the durability demands of temperature, shock, vibration, EMC and
altitude. As important as the system operational compatibility, the
environmental suitability must be carefully established to manage cost
and value tradeoffs.
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