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RamSan-400
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RamSan-400
Overview
The
RamSan-400 can sustain over 400,000 random IOPS and 3 GB/s of bandwidth
Accelerate OLTP, batch processing, and other intense applications
with the RamSan® solid state disk from Texas Memory Systems—the
only solid state disk available with the performance, software,
and features that critical enterprise applications demand. It is
2x-10x faster than the cache included in popular RAID storage systems,
yet it also contains the most high-availability features in the
solid state disk industry and fits the most GB of RAM storage per
rack unit. The RamSan® is the only solid state disk that allows
users two distinct modes of data retention, customizable for each
LUN on the unit. Placing hot data on a RamSan® allows maximum
return on existing critical applications and hardware.
Performance is key to a quality solid state disk. The RamSan-400
is the World's Fastest Storage®. The system delivers 3 GB/sec
of sustained, random bandwidth and over 400,000 random I/Os per
second. The RamSan® delivers its massive bandwidth to hosts
through eight 4-Gb Fibre Channel interface ports or four 4x InfiniBand
ports. Its high bandwidth enables administrators to share the RamSan-400
across multiple hosts without affecting performance. Also, some
applications require high bandwidth, including video on-demand and
non-linear editing of HDTV. Competing solid state disks that have
less bandwidth than the RamSan-400 cannot support all of the applications
that the RamSan® supports and cannot be shared with as many
hosts without compromising performance. An important note as you
compare solid state disk to RAID: our solid state disks can sustain
their bandwidth numbers with random data streams. Conversely, RAID
systems can only sustain high bandwidth numbers with sequential
data streams.
The RamSan-400 can deliver 400,000 random I/Os Per Second (IOPS)
to your applications. A single port on the RamSan-400 can provide
100,000 random IOPS. We stress "random IOPS" because RAID
manufacturers occasionally cite their IOPS performance, but discerning
buyers should be aware that these quoted numbers are almost always
sequential IOPS performance. The problem with sequential IOPS is
that almost no "real world" applications actually result
in sequential small block disk access.
So why do you need IOPS? IOPS are needed to process database transactions.
Database transactions have two main characteristics: they are small
(averaging around 8K), and they are random. Small random file accesses
thrash hard disk drives. In fact, a really good disk drive can provide
around 300 random IOPS. A fast RAID can handle 5,000 random IOPS.
The fastest cache built in to expensive storage systems can handle
at most 150,000 IOPS. This brings us back to the original statement:
it is important to support a high number of IOPS because your servers
can produce a high number of IOPS.
When your processor is faster than your storage, then your processor
literally waits on storage for data needed to perform calculations
– this is called I/O wait time. If your processor is waiting,
then your users are waiting, too. In addition, you are wasting a
significant investment in the latest processors. By supplying incredibly
high random IOPS, the RamSan-400 eliminates I/O wait time for all
of its stored files. Because of its random IOPS capabilities, a
single RamSan-400 can provide I/O acceleration for multiple host
servers.
When you consider our combined bandwidth and random IOPS performance,
it becomes clear why we call the RamSan® "The World's Fastest
Storage®."
Features
The
RamSan-320 offers these featurese:
• Over 400,000 random IOPS
• 3 GB/s random systained external throughput
• IBM Chipkill technology
• Exclusive Active Backup® software
• Full array of hardware redundancy to ensure availability
• 128 GB of RAM storage
• Less than 15 microseconds of latency
• 4-Gb Fibre Channel ports (capable of 2-Gb)
• x4 InfiniBand ports
• Non-volatile solid state disk
Details
The
RamSan-400's fast DDR RAM storage is ideal for storing performance-demanding
data and accelerating application performance. In fact, the RamSan-400
is The World's Fastest Storage®. No RAID, no cache, no other
solid state disk is capable of the raw performance offered by the
RamSan-400.
Performance
TMS' numerous customers have seen real-world performance increases
from 2x to 25x simply by installing a single RamSan®. It plugs
into servers or fabrics through basic Fibre Channel or InfiniBand
connections and appears simply as a very, very fast drive to the
network, able to act as any disk or storage system might. The RamSan-400
can accelerate numerous applications across industries. It is best
known for producing dramatic performance gains in OLTP, batch processing,
and other transaction-intensive operations.
Reliability
There is no tradeoff in reliability for all this performance. The
RamSan-400 includes hot swappable redundancies wherever physical
wear is a factor, such as power supplies and backup hard disks.
It also includes three independent internal UPS systems to ensure
that no power loss or power supply failure will stop the RamSan®
from performing its internal backup procedures. Redundant cooling
fans and redundant failover data ports (optional) are also part
of the sophisticated design.
Interoperability
The RamSan-400 is designed to look like a disk to the network. Therefore,
it is highly interoperable and works in virtually any enterprise
environment. It is installed in numerous environments, including
Apple OS X, AIX, Solaris, Linux, and Windows. Hardware from Fibre
Channel and InfiniBand vendors including Cisco, Emulex, Brocade,
McData, Mellanox, QLogic, LSI Logic, and Vixel easily interoperates
with the RamSan®.
Active Backup® and Chipkill Technology: The Newest Innovations
in SSD
Exclusive to the RamSan® is Active Backup® software. Other
SSDs and cache systems can only "destage" data from RAM
to backup disks once power is already lost. This means that data
is never backed up during normal operation and the time-to-complete-backup
after power loss is unacceptably long. A RamSan-400 with Active
Backup can continuously back up data on RAM to the internal backup
hard disks without impacting performance. This means in an emergency
situation data is anywhere from 60-100% on the backup hard drives
already.
RamSan-400 takes reliability even farther by implementing IBM Chipkill
technology. Standard error correcting code (ECC) implementations
correct single-bit data errors in memory chips but cannot correct
the multi-bit errors that can result in data integrity issues. Chipkill
technology allows a memory system to correct a multi-bit failure
up to and including a total chip failure.
Soft Error Scrubbing
All solid state disks can correct a single bit error before sending
data to the server as a part of their ECC protection. The RamSan-400,
however, goes a step further by scrubbing – re-writing the
corrected data to memory and then verifying the re-write to determine
if a memory chip has a failure (a hard error) or if radiation transients
caused the single bit error (a soft error). Systems that do not
scrub single bit memory errors will either a) report errors to a
system log that will eventually encourage replacement of a memory
board or b) hide these errors, thus leaving a potentially unsafe
memory board in the system. Research on this topic suggests that
90% of single bit errors are soft errors. In these cases, the RamSan-400
will correct the error through the scrubbing process and prevent
unnecessary downtime to replace memory boards..
Specifications
Storage
• Capacity (Usable): 128 GB
• LUNs: 1,024 LUNs
• Storage Medium: RAM
Performance
• Maximum Bandwidth: 3,072 MB/s
• Read IOPS: 400 K IOPS
• Read Latency: 15 microseconds
• Write IOPS: 400 K IOPS
• Write Latency: 15 microseconds
Interfaces
• Expansion Slots: 4 slots
• Fibre Channel Ports per Card: 2 ports/card
• Fibre Channel Speed per Port: 4 Gb/s
• InfiniBand Channel Width: 4 X
• InfiniBand Channels per Card: 1 channels/card
• InfiniBand Data Rate Standard: SDR
• InfiniBand Speed per Channel: 8 Gb/s
Management
• Supports Browser Management
• Supports SNMP Management
• Supports SSH Management
• Supports Telnet Management
Power
• Typical Power Consumption: 350 W
Mechanical
• Dimensions: 5.25" (3U) X 25"
• Form Factor: 3U
• Weight: 80 lbs
For additional information, options and pricing about our ThinkCP™ products,
please contact our sales representatives - (800)726-2477
or
email - SalesDesk
AT ThinkCP.com
Copyright © 1997 - 2011 H. Co. Computer Products. All Rights Reserved. ThinkCP™
and H. Co. Computer Products® are trademarks or registered trademarks of
H. Co. Computer Products, Inc. For additional information regarding our trademarks,
please visit Trademark Info at http://www.ThinkCP.com. This list is not intended
to be an all-inclusive or comprehensive list of all H. Co. Computer Products trademarks
and/or intellectual properties. Other product names used herein are for identification
purposes only and may be the respective property or trademarks of other companies.
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