|
RAMSan: PCI
Storage Flash Storage
RAM Storage
- The World's Fastest Storage®
- Over 600,000 random I/Os per second
- 4.5 GB/s random sustained external throughput
- IBM Chipkill technology
- RAIDed RAM boards
- Exclusive Active Backup® software
- Patented IO2 (Instant-On Input
Output) software
- Full array of hardware redundancy to ensure
availability.
The RamSan-440 is a new solid state disk with
record high performance, record high capacity for a RAM-based system, and a
combination of features that help ensure the highest availability of data to its
users. The RamSan-440 is the world’s first non-volatile RAM-based SSD to sustain
up to 600,000 IOPS (input/outputs per second) and deliver up to 512GB of storage
capacity in a 4U rack-mount chassis. It’s also the first SSD to use RAIDed NAND
Flash storage modules for data backup, and the first system to incorporate Texas
Memory Systems’ patented IO2 (Instant-On Input-Output) technology.
Solid state disks, like Texas Memory Systems’
RamSan-440, allow organizations to manage very high transaction volumes and
larger numbers of concurrent users with fewer servers, less power, and without
excessive application tuning, thus increasing performance while lowering cost
and administration efforts. RamSan solid state disks are used in the financial,
telecom, e-commerce, and online-gaming industries, as well as government,
military, and research organizations for online transaction processing, data
warehousing, and batch processing.
Request a Quote
Typically, solid state disks are deployed
alongside traditional storage. For example, frequently accessed database tables
and indexes may be stored on the RamSan, while less performance-sensitive
database components remain on existing hard disk based storage. However, the
growing size of mission-critical databases and the falling cost of solid state
disks have increased demand for high-performance, high-capacity SSDs. The
RamSan-440 meets this demand without sacrificing reliability or value.
The RamSan-440 uses DDR2 (double-data-rate) RAM to deliver 600,000 sustained
random IOPS and over 4GB/second of sustained random read or write bandwidth,
with latency of less than 15 microseconds. It is available in 256GB and 512GB
configurations in a 4U chassis. The system can be SAN-attached or direct
attached through up to eight 4Gb/second Fibre Channel ports. Multiple
RamSan-440s can be combined to scale performance and capacity.
The RamSan-440 uses RAID protected Flash memory
modules to rapidly back up the RAM-based data and ensure non-volatility for the
system. In Active Backup mode, the RamSan-440 continuously backs up data to the
internal redundant Flash modules without impacting system performance. The
RamSan-440 can back up or restore the entire 512GB of data in just six minutes.
Texas Memory Systems’ patented IO2 technology further improves system
availability by making user or application-requested data instantly accessible
after the system is powered on.
The RamSan-440, TMS' thirteenth generation solid
state disk, is simply the most advanced SSD on the market today. Its fast DDR
RAM storage is ideal for storing performance-demanding data and accelerating
application performance. In fact, the RamSan-440 is The World's Fastest
Storage®. No RAID, no cache, or other solid state disk is capable of the raw
performance offered by the RamSan-440.
Request a Quote
The RamSan-440 raises the bar for shutdown and
restore as well. It is the first SSD unit to use Flash memory as the backup
media. This dramatically decreases the amount of time it takes to back up the
data in the event of power loss. It also dramatically increases the recovery and
start up times.
TMS’ numerous customers have seen real world increases from 2x to 25x simply by
installing a single RamSan. The RamSan-440 can accelerate numerous applications
across industries. It is best known for drastic performance gains in OLTP, batch
processing, and other intensive operations. The RamSan plugs into servers or
fabrics through basic Fibre Channel. It appears simply as a very, very fast disk
to the network, able to act as any disk or storage system might.
There is no tradeoff in reliability for performance. The RamSan-440 includes
RAIDed RAM boards for primary storage, hot swappable power supplies, and three
independent internal batteries (N+1) to ensure that no power loss or power
supply failure will stop the RamSan from performing its internal backup
procedures to RAID protected Flash memory modules. Redundant cooling fans and
redundant data ports are also part of the sophisticated design.
The RamSan-440 protects both the primary storage (RAM) and the backup storage
media (Flash) by using RAIDed configurations. The RamSan-440 protects the
primary RAM storage media with RAIDed RAM-boards. As part of the RAID protection
for each bank of memory there is one set of memory cards that stores parity
data.
The RamSan-440 protects the Flash storage media
with RAIDed Flash modules. If a Flash module fails, a parity module will provide
data protection. The Flash modules are used when the RamSan loses power; the
data residing on the RAM is transferred to the Flash storage so that data is not
lost. By using RAIDed Flash modules, the data is protected from a Flash module
failure during a power loss.
The RamSan-440 takes reliability even further 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.
Combining Chipkill and RAIDed memory boards
brings unprecedented memory protection for an SSD. The RamSan-440 has 648 GBs of
raw memory capacity that is presented as 512 GBs of usable capacity after these
protection levels.
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-440, 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-440 will correct the error through the scrubbing process and
prevent unnecessary downtime to replace the memory board.
The RamSan 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: AIX, Solaris, Linux, Windows,
Tru64, OpenVMS, and HP-UX. Hardware from Fibre Channel vendors including Emulex,
Brocade, Mellanox, QLogic and LSI Logic easily interoperate with the RamSan.
The RamSan-440 includes the most management features of any solid state disk.
Administrators can manage the RamSan over the network or by directly connecting
to the unit. The RamSan can be fully configured and monitored from either a
Telnet or a browser. The front panel displays system status and allows basic
management functionality as well.
Exclusive to the RamSan is Active Backup® software. Other SSDs and cache systems
only "de-stage" data from RAM to backup media 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-440 with Active
Backup can continuously back up data on RAM to the internal Flash storage
modules without impacting performance. This means in an emergency situation,
data is anywhere from 60-100% saved to the Flash modules already.
IO2 is a patented Texas Memory Systems technology and an optional
feature that allows transactions to be processed while data restores from the
Flash memory modules to the RAM storage. This means that after a RamSan is
powered on, production does not have to wait for a full restore to take place.
IO2 provides the highest availability by allowing transactions to be
processed before the data restore is complete.
Using the high bandwidth Flash storage designed
by Texas Memory Systems as the backup media allows the RamSan-440 to back up
512GB in less than six minutes. Other SSD units can take up to two hours to back
up the same amount of data. The Flash backup, Active Backup, and IO2
features offered only by the RamSan cut shutdown and restore times to a small
fraction of other SSDs.
For customers who have multiple units, we offer Terawatch, an optional software
feature that allows management of multiple RamSans from a single management
console. Terawatch is a part of the same management software program used to
manage the RamSans individually; therefore no additional training is required to
run Terawatch.
DataStat-Archive is an optional firmware feature for the RamSan-440 that
provides performance information that allows users to identify the I/O,
bandwidth, and latency metrics for any given period of time over the past year.
Using this feature makes it easier for customers to plan and organize their use
of resources.
Email Alert is an optional feature of the RamSan that will send an email in the
event of a change in system status. This feature allows a system administrator
to proactively resolve potential hardware or software problems before they
escalate.
Request a Quote
|
|
| 600,000 |
| |
|
|
| 256-512 GB |
| |
|
|
| 4.5 GB per second |
| |
|
|
| Less than 15 microseconds |
| |
|
|
- 4-Gigabit Fibre Channel (2-Gigabit
capable)
- 2 ports standard; up to 8 ports available
- Supports point-to-point, arbitrated loop,
and switched fabric topologies
- Interoperable with Fibre Channel Host Bus
Adaptors, switches, and operating systems
|
| |
|
|
- Browser-enabled system monitoring,
management, and configuration
- SNMP supported
- Telnet management capability
- Front panel displays system status and
provides basic management functionality
- Optional Email home feature
|
| |
|
|
- 1 to 1024 LUNs with variable capacity per
LUN
- Flexible assignment of LUNs to ports
- Hardware LUN masking
|
| |
|
|
- Non-volatile solid state disk
- Redundant internal batteries (N+1) power
the system for 25 minutes after power loss
- Automatically backs up data to Flash
memory modules at 1.4 GB/sec
|
| |
|
|
- Chipkill technology protects data against
memory errors up to and including loss of an entire memory chip
- Internal redundancies
- Power supplies and fans
- Backup battery power (N+1)
- RAIDed RAM Boards (RAID 3)
- Flash Memory modules (RAID 3)
- Hot-swappable components
- Five Flash Memory modules (front access)
- Power supplies
- Active Backup®
- Active Backup® mode (optional) backs up data constantly to internal
redundant Flash Memory modules without impacting system performance making
shutdown time significantly shorter.
- IO2
- IO2 allows instant access to data when power is restored
to the unit and while data is synced from Flash backup.
- Soft Error Scrubbing
- When a single bit error occurs on a read, the RamSan will
automatically re-write the data to memory thus scrubbing soft errors.
Following the re-write the system re-reads to verify the data is
corrected.
|
| |
Supports two backup modes that are configurable per system or per LUN: |
- Data Sync mode synchronizes data to
redundant internal Flash Memory modules before shutdown or with power loss
- Active BackupTM mode (optional) - backs up
data constantly to internal redundant Flash Memory modules without
impacting system performance.
|
| |
|
|
| 7” (4U) x 24” |
| |
|
|
| 650 Watts |
| |
|
|
| 90 lbs |
Request a Quote
| 